Brand
Brand Transferpette S Starter Kit Standard, 3 Pipettes 0.5-10 / 10-100 / 100-1000 µl, DE-M, 705893
Anyone who wants to equip a laboratory with several volume ranges in one go rarely needs just a single pipette. The Brand Transferpette S Starter Kit Standard bundles 3 variable single-channel pipettes of 0.5-10 / 10-100 / 100-1000 µl in one set and thus covers in one go what would otherwise require several individual orders, ready for use directly in the stand and typically suitable for initial laboratory equipment with the three most frequently used volume ranges in everyday microbiological and molecular biological work. This makes the commonly used combination of small, medium and large volume available immediately. All the pipettes included can be operated one after another without getting used to a different handling.3 pipettes for the complete rangeThe Starter Kit Standard combines 3 Transferpette S single-channel pipettes with variable volume: the D-10 for 0.5-10 µl with an increment of 0.01 µl, the D-100 for 10-100 µl with an increment of 0.1 µl and the D-1000 for 100-1000 µl with an increment of 1 µl. Together the devices cover the range 0.5-10 / 10-100 / 100-1000 µl. A matching pipette tip size is defined for each pipette, included in the set as 1x TipBox 0.5-20 µl, 1x TipBox 2-200 µl, 1x TipBox 50-1000 µl.Precision under German legal metrologyAll pipettes in the set carry the DE-M marking under German legal metrology, and the accuracy testing is based on DIN EN ISO 8655 with three test points per volume range (100, 50 and 10 percent of the nominal volume). At the respective nominal volume, the accuracy A lies, depending on the model, between ±1 % and ±0.6 %, a level of accuracy that matters in dilution series and quantitative analyses. The accuracy A describes the deviation of the mean dispensed volume from the nominal value, the coefficient of variation CV the scatter of several repetitions at the same volume, both values increase towards the lower end of a volume range.One-handed operation and tool-free adjustmentFor series work, each pipette in the set is designed for one-handed operation, including a lock (UNLOCK/LOCK) against accidental adjustment. A deviation from the factory setting can be corrected directly and without tools using the Easy Calibration function.Autoclavable fully assembledSterile working is possible with every pipette in the set: it can be autoclaved completely, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes according to DIN EN 285, without having to be dismantled beforehand.Quality certificate and warranty includedA quality certificate (Performance Certificate) documents the testing of the pipettes in the Starter Kit Standard. A three-year warranty applies to the single-channel pipettes of the entire Transferpette S series.Which laboratory this combination suitsFor a newly equipped laboratory without a known focus, a broad basic equipment makes more sense than specialising in one volume window. With a small, a medium and a large range, the Starter Kit Standard covers the combination most frequently requested in practice, before the actual requirements become apparent in operation.Advantage of the set over individual procurementChoosing the Starter Kit Standard replaces 3 individual orders and the different delivery times that come with them. Since all pipettes come from the same series, operation is identical on every device, which helps especially at workstations with changing staff. The 3 shelf holders supplied hold all 3 pipettes within easy reach between two applications, instead of leaving them lying loose on the laboratory bench.Typical applicationsInitial laboratory equipment with the three most frequently used volume ranges in everyday microbiological and molecular biological work. This makes the commonly used combination of small, medium and large volume available immediately.Dilution series and reagent addition across several volume rangesInitial equipment for newly set up workstations as well as training and further educationReplacement equipment for a second workstation with the same volume spectrumTechnical detailsCompositionTransferpette S variable, single-channel, 3-piece Starter KitVolume range D-100.5-10 µl, increment 0.01 µlVolume range D-10010-100 µl, increment 0.1 µlVolume range D-1000100-1000 µl, increment 1 µlOperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under the label windowSterilisationAutoclavable fully assembled at 121 °C, 2 bar, at least 15 minutes according to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable, D-10 (0.5-10 µl)1x Transferpette S variable, D-100 (10-100 µl)1x Transferpette S variable, D-1000 (100-1000 µl)1x TipBox 0.5-20 µl, 1x TipBox 2-200 µl, 1x TipBox 50-1000 µl, filled3 shelf holders1x quality certificate1x silicone greaseIndividual requirements & procurement serviceFor deviating requirements, LT Laborhandel carries both the individual models of the Transferpette S series and further sets with a different volume combination. The procurement service supports with accessories, spare parts and individual calibration.
Brand Dispensette S Bottle-Top Dispenser, Digital, 2.5-25 ml, with Recirculation Valve, DE-M, 4600351
Anyone in the laboratory who repeatedly needs to prepare larger quantities of buffer wants to be able to read the volume without estimating the scale by eye. With 2.5 to 25 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.Accuracy and graduationAccuracy is 0.5 %/125 µl, the coefficient of variation figure 0.1 %/25 µl, the graduation 0.1 ml. These values apply to all volumes set within the range 2.5 to 25 ml and were determined according to the general test procedure for piston-stroke devices.Digital counterThe digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.Recirculation functionThis version has a recirculation valve. Excess liquid can thus be returned to the stock bottle without opening the discharge tube or removing the bottle. This is practical with expensive or hazardous reagents, for example when a calibration check needs several back-weighings or when too much volume was dispensed by mistake.Mounting and handlingThe Dispensette S Digital is mounted directly on the stock bottle using the bottle adapter supplied, and the telescopic filling tube can be shortened to the bottle height. The mounting key is part of the scope of delivery and is needed when changing the valve or discharge tube. After fitting, the device is drawn up and dispensed into a waste container several times until there are no more air bubbles in the system, after which it is ready for use.Media compatibilityThe range of media includes aggressive reagents, highly concentrated acids such as phosphoric or sulphuric acid, salt solutions and many organic solvents. By contrast, hydrofluoric acid, hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids must not be dispensed. The yellow Organic variant is intended for concentrated hydrochloric and nitric acid, THF and trifluoroacetic acid; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.AutoclavabilityThe complete device is autoclavable: 121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time around 2 hours in the closed autoclave. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.Distinction within the Dispensette S standard seriesThe three versions of the Dispensette S standard series differ in the way the volume is set, not in accuracy. Anyone who changes more often between volumes within the stated range gets on fastest with the Digital display. Anyone who is comfortable with a mechanical scale saves on purchase cost with the Analog version. And anyone who permanently needs only one volume gets by most easily with the Fix version.Frequently asked questionsCan the counter be reset to zero?Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.Which bottle sizes fit the Dispensette S Digital?According to the accessories table, the adapters GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.For which work step is the volume range 2.5 to 25 ml intended?Typical uses include reagent addition for larger sample series, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.Typical applicationsPreparing larger quantities of bufferDilution series in the ml rangeReagent addition for larger sample seriesTechnical detailsLineBrand Dispensette S, DigitalVolume2.5 to 25 mlGraduation0.1 mlAccuracy0.5 %/125 µlCoefficient of variation0.1 %/25 µlRecirculation valveyesMedia compatibilityStandard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percentMaterials of wetted partsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapterAutoclavability121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time around 2 hours in the closed autoclaveMarkingDE-MManufacturer article no.4600351Scope of deliveryBottle-top dispenser for GL45 threaded bottlesDischarge tube including recirculation tubeTelescopic filling tubeMounting keyBottle adapter matching the volumeQuality certificateOperating manualIndividual requirements and procurement serviceFor additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.
Brand Transferpette S Pipette Package 2, 5 Variable Single-Channel Pipettes, 0.5 µl to 5 ml, DE-M, 705897
Anyone who wants to equip a laboratory completely with high-precision air displacement pipettes rarely needs just a single volume. With five variable single-channel pipettes, the Brand Transferpette S Pipette Package 2 covers the complete range from 0.5 µl to 5 ml and so provides a full initial equipment in one go, for PCR and molecular biology workstations as well as for preparative sample preparation, ready for use in the practical bench stand and without having to collect additional individual pipettes. Five pipettes for the complete working range Pipette Package 2 combines five Transferpette S single-channel pipettes with variable volume: the D-10 for 0.5 to 10 µl with an increment of 0.01 µl, the D-100 for 10 to 100 µl with an increment of 0.1 µl, the D-200 for 20 to 200 µl with an increment of 0.2 µl, the D-1000 for 100 to 1,000 µl with an increment of 1 µl and the D-5000 for 500 to 5,000 µl with an increment of 5 µl. Together, the five devices cover the range from 0.5 µl to 5 ml without gaps, from the smallest PCR reactions to larger volumes in preparative sample preparation. Matching tip sizes are also defined for each of the five pipettes, from 0.5 to 20 µl for the D-10, through 2 to 200 µl for D-100 and D-200, up to 50 to 1,000 µl for the D-1000 and 500 to 5,000 µl for the D-5000. Precision under German weights and measures law All five pipettes carry the DE-M marking under German weights and measures law as well as the CE marking, and the accuracy testing follows DIN EN ISO 8655. At the respective nominal volume, the D-10 achieves an accuracy A of up to ±1 % with a coefficient of variation CV of up to 0.5 %. The four larger models D-100, D-200, D-1000 and D-5000 each have an accuracy A of up to ±0.6 % and a coefficient of variation CV of up to 0.2 %, a level of accuracy that counts particularly in quantitative analyses and dilution series. True one-handed operation for fatigue-free work Volume adjustment, pipetting and tip ejection can all be carried out with one hand on the Transferpette S, so there is no change of grip during serial work. A lockable volume setting with UNLOCK and LOCK position prevents the set volume from being changed accidentally during intensive use, a detail that pays off above all in long pipetting series in everyday laboratory work and lowers the error rate in repeated pipetting steps. Tool-free adjustment with Easy Calibration If the factory setting drifts, every pipette can be adjusted directly using the Easy Calibration function without any additional tool. A red adjustment slider in the display window shows when the factory setting has been changed, so it is visible at a glance whether the pipette is still running on its original calibration or has been readjusted. Autoclavable fully assembled For use in sterile areas, all five pipettes can be autoclaved fully assembled, at 121 degrees Celsius and 2 bar with a holding time of at least 15 minutes to DIN EN 285. Dismantling before sterilisation is therefore not necessary, which significantly reduces the effort for recurring sterilisation cycles in the laboratory. A tidy workstation with the carousel bench stand The bench stand supplied holds up to six devices as a carousel and so keeps the workstation clear even with five pipettes. All devices stand within reach and protected between two uses, instead of lying loose on the laboratory bench or contaminating each other. Quality certificate and warranty included Pipette Package 2 comes with a quality certificate (Performance Certificate) that documents the testing of the individual pipettes and can be filed directly into your own quality assurance. A three-year warranty applies to the single-channel pipettes of the Transferpette S series. Typical applications PCR reactions and master mix pipetting in molecular biology with D-10 and D-100 ELISA and other microtitre plate applications with D-100 and D-200 Dilution series and buffer preparation in general laboratory routine with D-200 and D-1000 Preparative sample preparation and larger volumes, for example when transferring reagents or preparing stock solutions, with D-1000 and D-5000 Initial laboratory equipment for newly set up workstations as well as for education and training, where different volume ranges are needed at the same time Technical details Model seriesTransferpette S, variable, single-channel, 5-piece package Volume range D-100.5-10 µl, increment 0.01 µl Volume range D-10010-100 µl, increment 0.1 µl Volume range D-20020-200 µl, increment 0.2 µl Volume range D-1000100-1,000 µl, increment 1 µl Volume range D-5000500-5,000 µl (0.5-5 ml), increment 5 µl Recommended tips D-100.5-20 µl Recommended tips D-100 / D-2002-200 µl Recommended tips D-100050-1,000 µl Recommended tips D-5000500-5,000 µl Accuracy (A) D-10 at nominal volume≤ ±1 % Coefficient of variation (CV) D-10 at nominal volume≤ 0.5 % Accuracy (A) D-100 / D-200 / D-1000 / D-5000 at nominal volume≤ ±0.6 % Coefficient of variation (CV) D-100 / D-200 / D-1000 / D-5000 at nominal volume≤ 0.2 % OperationOne-handed operation for volume setting, pipetting and tip ejection Volume lockUNLOCK / LOCK AdjustmentEasy Calibration, tool-free, red adjustment slider in display window SterilisationAutoclavable fully assembled at 121 °C, 2 bar, holding time at least 15 minutes to DIN EN 285 MarkingDE-M, CE Test standardDIN EN ISO 8655 (accuracy testing) Warranty3 years on single-channel pipettes Scope of delivery 1x Transferpette S, variable, D-10 (0.5-10 µl) 1x Transferpette S, variable, D-100 (10-100 µl) 1x Transferpette S, variable, D-200 (20-200 µl) 1x Transferpette S, variable, D-1000 (100-1,000 µl) 1x Transferpette S, variable, D-5000 (500-5,000 µl) 4x TipBox pipette tips, filled: 1x 0.5-20 µl, 1x 2-200 µl, 1x 50-1,000 µl, 1x 0.5-5 ml 1x bench stand (carousel for 6 devices) 1x quality certificate (Performance Certificate) 1x silicone grease Individual requirements & procurement service Anyone who does not need the complete 5-piece equipment will also find smaller Transferpette S starter kits at LT Laborhandel, for example in the combinations Micro, Midi, Macro or Standard, with a reduced pipette selection for narrower requirements or a smaller budget. For additional individual pipettes, suitable pipette tips, spare parts, calibration or individual combinations, our procurement service can help.
Brand Transferpette S Variable Single-Channel Pipette, 100-1000 µl, DE-M, 705880
When transferring culture medium for cell culture runs of different sizes, the volume needed varies between a few hundred microlitres and one millilitre depending on vessel size. The Brand Transferpette S variable D-1000 covers 100-1000 µl with an increment of 1 µl, without having to keep a separate device for every amount.Continuously adjustable with 1 µl incrementThe Transferpette S variable 100-1000 µl (model D-1000) covers the volume range 100-1000 µl in steps of 1 µl. The volume is set with a dial without tools, and a lockable position (UNLOCK/LOCK) prevents accidental adjustment during serial work. To match the volume range, Brand recommends the pipette tip size 50-1000 µl. In total, the variable Transferpette S series comprises ten volume sizes from 0.1 µl to 10 ml, so a suitable model from the same range can be combined for almost every working range. One range smaller is the Transferpette S variable 20-200 µl (D-200, MPN 705878). One range larger follows the Transferpette S variable 0.5-5 ml (D-5000, MPN 705882).Accuracy to DIN EN ISO 8655Tested to DIN EN ISO 8655 at three volume levels: at the full nominal volume, the pipette achieves an accuracy A of up to ±0.6 % and a coefficient of variation CV of up to 0.2 %, at half the nominal volume ±0.8 % and 0.3 % respectively, and at the lower end, at one tenth of the nominal volume, ±3 % and 0.6 % respectively. The three test points show that the accuracy decreases towards the lower end of the volume range, an effect that occurs with every air displacement pipette and should be taken into account when choosing the suitable model. The DE-M marking confirms the testing under German weights and measures law. The accuracy A describes the deviation of the average dispensed volume from the target value, and the coefficient of variation CV the scatter of several repetitions at this volume.Tool-free adjustment with Easy CalibrationThe Easy Calibration function allows readjustment directly on the pipette, without tools, using an adjustment slider under the label window with volume offset. A changed factory setting becomes visible through a red adjustment slider in the display window.Fully autoclavableFor sterile applications, the pipette can be autoclaved fully assembled, as a complete unit, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes to DIN EN 285, and dismantling is not required.Variable or fixed: which design fitsCulture vessels of different sizes need different amounts of medium, which makes the variable Transferpette S D-1000 the right choice. If the same vessel format is always supplied with the same amount, a Transferpette S Fix from the same range offers simpler operation. For the D-1000 with its range of 100-1000 µl, the specific working step therefore decides whether variable or fixed is the more suitable design.Quality certificate and warranty includedEvery pipette is supplied with a quality certificate (Performance Certificate), which can be filed into your own quality assurance. A three-year warranty applies to the single-channel pipettes of the Transferpette S series.Typical applicationsTransferring culture medium for cell culture runs of different sizesTransferring reagents and preparing stock solutionsBuffer preparation in general laboratory routineInitial laboratory equipment when a medium volume range is needed flexiblySerial work over a longer period with several volume levelsTechnical detailsModelTransferpette S variable, D-1000Volume range100-1000 µlIncrement1 µlRecommended tip size50-1000 µlAccuracy (A) at 100/50/10 % of nominal volume≤ ±0.6 % / ±0.8 % / ±3 %Coefficient of variation (CV) at 100/50/10 % of nominal volume≤ 0.2 % / 0.3 % / 0.6 %OperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under label windowSterilisationFully autoclavable at 121 °C, 2 bar, at least 15 minutes to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable 100-1000 µl (D-1000)1x quality certificate1x silicone greaseIndividual requirements & procurement serviceIf a different volume range is needed in addition, it is worth looking at the neighbouring models of the Transferpette S series or at the starter kits with several ranges in one set. For accessories, spare parts and individual calibration, the procurement service from LT Laborhandel can help.
Brand Transferpette S Pipette Package 1, 5 Pipettes 0.1 µl to 1 ml, DE-M, 705896
Anyone who wants to equip a laboratory with several volume ranges in one go rarely needs just a single pipette. The Brand Transferpette S Pipette Package 1 bundles 5 variable single-channel pipettes from 0.1 µl to 1 ml in one combination and so covers at once what would otherwise take several individual orders, ready for use in the stand and typically suited to a complete initial laboratory equipment across five volume ranges, from PCR volumes to preparative sample preparation. This reduces the coordination effort compared with several individual orders with different delivery times.5 pipettes for the complete rangePipette Package 1 combines 5 Transferpette S single-channel pipettes with variable volume: the D-2.5 for 0.1-2.5 µl with an increment of 0.002 µl, the D-10 for 0.5-10 µl with an increment of 0.01 µl, the D-20 for 2-20 µl with an increment of 0.02 µl, the D-200 for 20-200 µl with an increment of 0.2 µl and the D-1000 for 100-1000 µl with an increment of 1 µl. Together, the devices cover the range 0.1 µl to 1 ml. A matching pipette tip size is defined for each pipette, included in the set as 3x TipBox.Precision under German weights and measures lawAll pipettes in the set carry the DE-M marking under German weights and measures law, and the accuracy testing follows DIN EN ISO 8655 with three test points per volume range (100, 50 and 10 percent of the nominal volume). At the respective nominal volume, the accuracy A is between ±1.4 % and ±0.6 % depending on the model, a level of accuracy that matters for dilution series and quantitative analyses. The accuracy A describes the deviation of the average dispensed volume from the target value, and the coefficient of variation CV the scatter of several repetitions at the same volume. Both values increase towards the lower end of a volume range.One-handed operation and tool-free adjustmentEvery pipette in the set is operated with one hand, from volume setting to tip ejection, protected by a lock (UNLOCK/LOCK). Adjustment is tool-free using Easy Calibration, and an adjustment slider under the label window shows a changed factory setting.Autoclavable fully assembledEvery pipette in the set withstands autoclaving in the assembled state, as a complete unit, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes to DIN EN 285, and dismantling before sterilisation is not required.Quality certificate and warranty includedA quality certificate (Performance Certificate) is enclosed with the set, which can be filed directly into your own quality assurance. The single-channel pipettes of the Transferpette S series are covered by a three-year warranty.Which laboratory this combination suitsA laboratory that covers both PCR preparation in very small volumes and larger sample preparation up to 1 ml usually cannot manage with a single starter kit. With five volume ranges, Pipette Package 1 closes the gap between the smaller kits and so covers a complete molecular biology workstation in one go.Advantage of the set over individual procurementFor a newly set up laboratory, Pipette Package 1 covers 5 volume ranges in a single process, instead of collecting them one by one. All devices come from the same series and are operated in the same way, which makes training easier. The bench stand supplied keeps all 5 pipettes within reach between two uses, instead of leaving them lying loose on the laboratory bench.Typical applicationscomplete initial laboratory equipment across five volume ranges, from PCR volumes to preparative sample preparationDilution series and adding reagents across several volume rangesInitial laboratory equipment for newly set up workstations as well as education and trainingSetting up an additional workstation without several individual ordersTechnical detailsCombinationTransferpette S variable, single-channel, 5-piece pipette packageVolume range D-2.50.1-2.5 µl, increment 0.002 µlVolume range D-100.5-10 µl, increment 0.01 µlVolume range D-202-20 µl, increment 0.02 µlVolume range D-20020-200 µl, increment 0.2 µlVolume range D-1000100-1000 µl, increment 1 µlOperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under label windowSterilisationAutoclavable fully assembled at 121 °C, 2 bar, at least 15 minutes to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable, D-2.5 (0.1-2.5 µl)1x Transferpette S variable, D-10 (0.5-10 µl)1x Transferpette S variable, D-20 (2-20 µl)1x Transferpette S variable, D-200 (20-200 µl)1x Transferpette S variable, D-1000 (100-1000 µl)3x TipBox, filled1x bench stand1x quality certificate1x silicone greaseIndividual requirements & procurement serviceIf this combination does not fit completely, LT Laborhandel offers further Transferpette S sets and individual models with a different volume combination. For pipette tips, spare parts and larger quantities, the procurement service from LT Laborhandel can help.
Brand Dispensette S Organic Bottle-Top Dispenser, Analog, 1-10 ml, with recirculation valve, DE-M, 4630141
In standardised digestion procedures with concentrated nitric acid, daily venting should not cost any reagent. The Brand Dispensette S Organic Analog with recirculation valve (1 to 10 ml) returns excess volume to the reservoir bottle instead of discarding it via the dispensing cannula. At 1-10 ml the graduation is 0.2 ml, the accuracy is 0.5 %/50 µl and the coefficient of variation is 0.1 %/10 µl.Typical applicationsThe yellow colour code identifies the Organic series in the Brand range. For 1-10 ml, in practice these include:Venting before standardised digestion with concentrated nitric acid, without reagent lossrecurring dichloromethane addition, with excess volume returnedfixed THF dispensing in synthesis, with refilling without lossAnalogue version and selection guideThe volume is set using the volume adjustment screw with indicator arrow: loosen the screw by three quarters of a turn, slide the indicator arrow to the scale value, and tighten the screw again. Once set, the value stays until deliberately changed. Analogue devices can be adjusted without tools via Easy Calibration. Matching bottle adapters for GL 24-25, GL28/S 28, GL 32-33, GL 38, S 40 are included, and the filling tube can be adjusted to 125-240 mm.With a fixed but expensive acid volume in routine work, the recirculation valve pays off when venting. For inexpensive media, the version without RV is sufficient.Materials and autoclavabilityWetted parts are made of borosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, tantalum, PP (screw cap/bottle adapter). The device is autoclavable under the following conditions: yes, 121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time approx. 2 hours in the closed autoclave. Tantalum as the valve spring material, together with the fluoroplastics ETFE, FEP, PFA and PTFE, makes the Organic series suitable for organic solvents and some concentrated acids, but not for alkaline solutions and salt solutions.The Dispensette S Organic is not suitable for alkaline solutions, salt solutions, carbon disulphide, explosive liquids and media that attack borosilicate glass, such as hydrofluoric acid. For alkaline solutions and salt solutions, the Dispensette S in red (standard) is the suitable series, and for trace analysis with a selectable valve spring of platinum-iridium or tantalum, the Dispensette S Trace Analysis.Assembly and changing to a different reservoir bottle are done with the supplied mounting tool and the telescopic filling tube, which can be adjusted to the respective bottle height. The bottle adapter included in the scope of delivery fits the respective GL45-compatible thread and makes the dispenser usable regardless of the specific reservoir bottle.Accuracy at a glanceFor 1-10 ml: graduation 0.2 ml, accuracy 0.5 %/50 µl, coefficient of variation 0.1 %/10 µl. DE-M in the product name stands for factory calibration in accordance with German weights and measures law.Other volumes in the analogue versionIf you need a range other than 1-10 ml, you will find it within the analogue version of the Dispensette S Organic:VolumeAccuracyMPN (without RV)0.5-5 ml0.5 %/25 µl46301302.5-25 ml0.5 %/125 µl46301505-50 ml0.5 %/250 µl463016010-100 ml0.5 %/500 µl4630170Frequently asked questionsWhat is the recirculation valve needed for?It allows the dispensing system to be vented before first use without losing any reagent: air and excess volume go back into the reservoir bottle via the recirculation tube instead of into waste. This is particularly relevant with expensive or environmentally relevant solvents.How is the analogue version adjusted in the 1-10 ml range?With Easy Calibration this can be done without additional tools; a changed factory adjustment is shown by a red marking.Technical detailsVersionAnalogueRecirculation valveyes, incl. recirculation tubeVolume range1-10 mlGraduation0.2 mlAccuracy (A)0.5 %/50 µlCoefficient of variation (CV)0.1 %/10 µlColour codeyellow (Organic)Valve springTantalumWetted materialsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, tantalum, PP (screw cap/bottle adapter)Autoclavableyes, 121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time approx. 2 hours in the closed autoclaveThreadGL45Adapter/filling tubeAdapters: GL 24-25, GL28/S 28, GL 32-33, GL 38, S 40; filling tube 125-240 mm; incl. recirculation tubeScope of delivery1 Dispensette S Organic bottle-top dispenser for GL45 threaded bottlesDispensing cannula with recirculation valve, including recirculation tubeTelescopic filling tubeMounting toolBottle adapter matching the volume rangeQuality certificateOperating manualDistinction within the Dispensette S familyYellow colour code means: suitable for organic solvents and for concentrated hydrochloric acid and nitric acid. For alkaline solutions and the other acids, the red standard Dispensette S still applies. For trace analysis with a selectable valve spring of platinum-iridium or tantalum, the Dispensette S Trace Analysis is available separately.Individual requirements & procurement serviceLT Laborhandel provides support via its own procurement service (lt-laborhandel.com/service) with suitable bottle adapters, spare parts and further volume ranges of this series.
Brand Dispensette S Bottle-Top Dispenser, Digital, 1-10 ml, with Recirculation Valve, DE-M, 4600341
Anyone in the laboratory who repeatedly needs a routine reagent addition wants to be able to read the volume without estimating the scale by eye. With 1 to 10 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.Media compatibilityThe red standard version tolerates a wide range of reagents: concentrated acids such as phosphoric acid and sulphuric acid, concentrated alkalis, salt solutions and numerous organic solvents. Excluded are hydrofluoric acid as well as hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids. Anyone who regularly dispenses concentrated hydrochloric or nitric acid should choose the yellow Dispensette S Organic; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.AutoclavabilityThe complete device is autoclavable: sterilisation to DIN EN 285: 121 °C, 2 bar, holding time at least 15 minutes, followed by around 2 hours of cooling time in the closed device. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.Distinction within the Dispensette S standard seriesWithin the Dispensette S standard series, Digital, Analog and Fix differ mainly in volume setting. Digital shows the set volume on the mechanical counter and is suitable when different values are often needed within the range. Analog achieves the same accuracy via a scale on the cylinder without a counter. Fix dispenses only a single, factory-adjusted volume and thus rules out accidental changes. Anyone who constantly needs the same volume range and no variation gets by more cheaply and with simpler handling with a Fix version.Accuracy and graduationAccuracy is 0.5 %/50 µl, the coefficient of variation figure 0.1 %/10 µl, the graduation 0.05 ml. These values apply to all volumes set within the range 1 to 10 ml and were determined according to the general test procedure for piston-stroke devices.Digital counterThe digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.Recirculation functionThis version has a recirculation valve. Excess liquid can thus be returned to the stock bottle without opening the discharge tube or removing the bottle. This is practical with expensive or hazardous reagents, for example when a calibration check needs several back-weighings or when too much volume was dispensed by mistake.Mounting and handlingThe bottle adapter from the scope of delivery is screwed onto the stock bottle, and the telescopic filling tube can be shortened to the bottle height. Before first use, the device is drawn up and dispensed into a waste container several times until the system is free of air bubbles. The mounting key is needed later when changing the valve or discharge tube.Frequently asked questionsCan the counter be reset to zero?Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.Which bottle sizes fit the Dispensette S Digital?According to the accessories table, the adapters GL 24-25, GL28/S 28, GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.For which work step is the volume range 1 to 10 ml intended?Typical uses include recurring additions in analysis series, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.Typical applicationsRoutine reagent addition in the laboratoryBuffer preparation in common volumesrecurring additions in analysis seriesTechnical detailsLineBrand Dispensette S, DigitalVolume1 to 10 mlGraduation0.05 mlAccuracy0.5 %/50 µlCoefficient of variation0.1 %/10 µlRecirculation valveyesMedia compatibilityStandard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percentMaterials of wetted partsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapterAutoclavabilitySterilisation to DIN EN 285: 121 °C, 2 bar, holding time at least 15 minutes, followed by around 2 hours of cooling time in the closed deviceMarkingDE-MManufacturer article no.4600341Scope of deliveryBottle-top dispenser for GL45 threaded bottlesDischarge tube including recirculation tubeTelescopic filling tubeMounting keyBottle adapter matching the volumeQuality certificateOperating manualIndividual requirements and procurement serviceFor additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.
Brand Transferpette S Variable Single-Channel Pipette, 10-100 µl, DE-M, 705874
When transferring supernatants during protein purification, the volume varies from fraction to fraction, depending on how much supernatant actually has to be removed after centrifugation. The Brand Transferpette S variable D-100 covers 10-100 µl with an increment of 0.1 µl and can be adjusted by dial without tools.Continuously adjustable with 0.1 µl incrementThe Transferpette S variable 10-100 µl (model D-100) covers the volume range 10-100 µl in steps of 0.1 µl. The volume is set with a dial without tools, and a lockable position (UNLOCK/LOCK) prevents accidental adjustment during serial work. To match the volume range, Brand recommends the pipette tip size 2-200 µl. In total, the variable Transferpette S series comprises ten volume sizes from 0.1 µl to 10 ml, so a suitable model from the same range can be combined for almost every working range. One range smaller is the Transferpette S variable 5-50 µl (D-50, MPN 705873). One range larger follows the Transferpette S variable 20-200 µl (D-200, MPN 705878).Accuracy to DIN EN ISO 8655Tested to DIN EN ISO 8655 at three volume levels: at the full nominal volume, the pipette achieves an accuracy A of up to ±0.6 % and a coefficient of variation CV of up to 0.2 %, at half the nominal volume ±0.8 % and 0.4 % respectively, and at the lower end, at one tenth of the nominal volume, ±3 % and 1 % respectively. The three test points show that the accuracy decreases towards the lower end of the volume range, an effect that occurs with every air displacement pipette and should be taken into account when choosing the suitable model. The DE-M marking confirms the testing under German weights and measures law. The accuracy A describes the deviation of the average dispensed volume from the target value, and the coefficient of variation CV the scatter of several repetitions at this volume.Tool-free adjustment with Easy CalibrationIf the factory setting deviates, the pipette can be adjusted directly using the Easy Calibration function, without any additional tool. An adjustment slider under the label window with volume offset shows when the factory setting has been changed. A red adjustment slider in the display window shows whether the pipette is still running on its original calibration or has been readjusted.Fully autoclavableThe pipette withstands autoclaving as a complete unit, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes to DIN EN 285, in the assembled state, and dismantling before sterilisation is not necessary.Variable or fixed: which design fitsWhen transferring supernatants, the amount actually available is never exactly the same, which suits the variable Transferpette S D-100. If, on the other hand, the same volume always has to be transferred in a standardised protocol, a Transferpette S Fix from the same range is sufficient. For the D-100 with its range of 10-100 µl, the specific working step therefore decides whether variable or fixed is the more suitable design.Quality certificate and warranty includedA quality certificate (Performance Certificate) is enclosed, which can be filed directly into your own quality assurance. The single-channel pipettes of the Transferpette S series are covered by a three-year warranty.Typical applicationsTransferring supernatants in protein purification with a fluctuating volumeELISA and other microtitre plate applications with variable requirementsDilution series in general laboratory routineInitial laboratory equipment for newly set up workstationsQuality assurance with documented, variable volume settingTechnical detailsModelTransferpette S variable, D-100Volume range10-100 µlIncrement0.1 µlRecommended tip size2-200 µlAccuracy (A) at 100/50/10 % of nominal volume≤ ±0.6 % / ±0.8 % / ±3 %Coefficient of variation (CV) at 100/50/10 % of nominal volume≤ 0.2 % / 0.4 % / 1 %OperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under label windowSterilisationFully autoclavable at 121 °C, 2 bar, at least 15 minutes to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable 10-100 µl (D-100)1x quality certificate1x silicone greaseIndividual requirements & procurement serviceIf the volume range does not match the complete requirement, it is worth looking at the neighbouring Transferpette S models or at the starter kits with several volume ranges in one set. For suitable pipette tips, spare parts, individual calibration or larger quantities for several workstations, the procurement service from LT Laborhandel can help.
Brand Dispensette S Bottle-Top Dispenser, Digital, 5-50 ml, without Recirculation Valve, DE-M, 4600360
Anyone in the laboratory who repeatedly needs media portioning in the microbiology laboratory wants to be able to read the volume without estimating the scale by eye. With 5 to 50 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.Without recirculation valveThis version works without a recirculation valve. The design is therefore simpler, with one less moving part in the dispensing path. For applications where every dispensed volume goes directly into the target vessel and no return is needed, this slimmer design is sufficient.Mounting and handlingThe bottle adapter from the scope of delivery is screwed onto the stock bottle, and the telescopic filling tube can be shortened to the bottle height. Before first use, the device is drawn up and dispensed into a waste container several times until the system is free of air bubbles. The mounting key is needed later when changing the valve or discharge tube.Media compatibilitySuitable for aggressive reagents, concentrated alkalis and acids such as phosphoric acid or sulphuric acid, salt solutions and many organic solvents. Not suitable for hydrofluoric acid, hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids. The yellow Dispensette S Organic is intended for concentrated hydrochloric and nitric acid, THF and trifluoroacetic acid; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.AutoclavabilityThe complete device is autoclavable: steam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclave. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.Distinction within the Dispensette S standard seriesWithin the Dispensette S standard series, Digital, Analog and Fix differ mainly in volume setting. Digital shows the set volume on the mechanical counter and is suitable when different values are often needed within the range. Analog achieves the same accuracy via a scale on the cylinder without a counter. Fix dispenses only a single, factory-adjusted volume and thus rules out accidental changes. Anyone who constantly needs the same volume range and no variation gets by more cheaply and with simpler handling with a Fix version.Accuracy and graduationAccuracy is 0.5 %/250 µl, the coefficient of variation figure 0.1 %/50 µl, the graduation 0.2 ml. These values apply to all volumes set within the range 5 to 50 ml and were determined according to the general test procedure for piston-stroke devices.Digital counterThe digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.Frequently asked questionsCan the counter be reset to zero?Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.Which bottle sizes fit the Dispensette S Digital?According to the accessories table, the adapters GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.For which work step is the volume range 5 to 50 ml intended?Typical uses include the preparation of culture solutions and buffers in larger batches, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.Typical applicationsMedia portioning in the microbiology laboratoryFilling larger quantities of reagentPreparing culture solutions and buffers in larger batchesTechnical detailsLineBrand Dispensette S, DigitalVolume5 to 50 mlGraduation0.2 mlAccuracy0.5 %/250 µlCoefficient of variation0.1 %/50 µlRecirculation valvenoMedia compatibilityStandard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percentMaterials of wetted partsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapterAutoclavabilitysteam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclaveMarkingDE-MManufacturer article no.4600360Scope of deliveryBottle-top dispenser for GL45 threaded bottlesDischarge tubeTelescopic filling tubeMounting keyBottle adapter matching the volumeQuality certificateOperating manualIndividual requirements and procurement serviceFor additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.
Brand Titrette Bottle-Top Burette, 50 ml, DE-M, 4760161
The 50 ml version of the Titrette is the largest volume range of the series and is intended for titrations that require a lot of standard solution, for example because the concentration is low or the end point is far from the starting volume. Like the smaller Titrettes, it screws directly onto the GL45 supply bottle.One refill less per titration seriesAnyone who has so far worked with a 25 ml burette and had to refill during longer titrations saves this intermediate step with the 50 ml Titrette. This is particularly relevant for titrations with a larger final volume, when the standard solution would otherwise run out in the middle of the determination.Error limits of the 50 ml versionFor 50 ml, Brand specifies an accuracy of 0.06 percent or 30 µl and a coefficient of variation of 0.02 percent or 10 µl. The coefficient of variation in percent is therefore lower than with the 25 ml Titrette, because the repeatability refers to the larger total volume.Typical applicationsTitrations with high consumption of standard solution, for example with low-concentration titration solutionsSerial titrations without intermediate refilling of the supply bottleWater and environmental analysis with larger sample volumesRoutine laboratories where several titrations are to run one after another without interruptionSelection guide: which volume for which titrationThe 50 ml Titrette is the right choice if more standard solution is regularly needed than a 25 ml burette delivers without refilling, for example with low-concentration titration solutions or larger sample volumes. Accuracy 0.06 percent or 30 µl and coefficient of variation 0.02 percent or 10 µl are more favourable in percentage terms than with the smaller ranges, because the repeatability refers to the larger total volume. Anyone who also wants to document consumption electronically will find the same 50 ml range with an RS232 interface as well.Titrette compared with glass burette and DispensetteCompared with a 50 ml class A glass burette, the Titrette dispenses with reading at the meniscus in favour of a digital counter, and operation via the dosing button remains manual. A Dispensette would be the wrong choice for this task, as it repeatedly dispenses a fixed volume instead of continuously summing the consumption during a titration up to the end point.Technical detailsVolume range50 mlAccuracy0.06 % / 30 µlCoefficient of variation0.02 % / 10 µlConnection threadGL45MarkingDE-MPower supply2 micro batteries AAA/UM4/LR03Application and maintenanceThe Titrette screws directly onto the supply bottle of the standard solution via one of the three supplied PP bottle adapters (GL 32, S 40, NS 29/32), and the telescopic filling tube can be adjusted to bottle heights between 170 and 330 mm. Before first use and after every bottle change, the system must be primed like any piston burette so that no air bubble in the cylinder impairs dosing accuracy. The recirculation tube allows standard solution dispensed in excess by mistake to be returned to the bottle instead of starting the titration anew. Two amber-tinted light protection windows protect light-sensitive standard solutions without requiring the bottle to be completely covered. The counter is operated by two type AAA/UM4/LR03 micro batteries, which can be replaced without tools as soon as the display signals low battery voltage. A mains connection is not required, and the device remains ready for use even at workstations without a power socket.Scope of deliveryTitrette bottle-top burette for GL45 threaded bottlesDE-M markedQuality certificateTelescopic filling tube, 170 to 330 mmRecirculation tube2 micro batteries (AAA/UM4/LR03)3 PP bottle adapters (GL 32, S 40, NS 29/32)2 amber-tinted light protection windowsFrequently asked questionsWhat does the DE-M marking on the Titrette mean? DE-M is the German verification mark under the Weights and Measures Act, it identifies the device as suitable for applications requiring official verification.How accurately does the Titrette 50 ml dispense? Accuracy 0.06 percent or 30 µl, coefficient of variation 0.02 percent or 10 µl, according to the manufacturer.Which bottle thread fits the Titrette? GL45 directly, plus GL 32, S 40 and NS 29/32 via the supplied PP adapters.What is included in the scope of delivery? The Titrette itself, telescopic filling tube, recirculation tube, three bottle adapters, two micro batteries and a quality certificate.What happens if I accidentally dispense too much standard solution? The excess amount can be returned to the supply bottle via the supplied recirculation tube without starting the titration anew.Individual requirements & procurement serviceSuitable bottle adapters, replacement filling tubes or further accessories for the Titrette series can be requested via the procurement service of LT Laborhandel. Contact via lt-laborhandel.com/service.
Brand Transferpette S -8 Multichannel Pipette, 8-Channel, 5-50 µl, DE-M, 705906
For many protocols, there is a range between master mix addition and assay volume that is neither very small nor yet large. The Transferpette S -8 in the 5-50 µl range closes this gap column by column across eight channels.Model M8-50 combines 8 individually manufactured and tested pistons in one housing and thus covers 5-50 µl at an increment of 0.05 µl. The matching tips in the 2-200 µl range can be removed without contact via the ejection mechanism. Because the piston guidance runs jointly across all 8 channels, the effort when pipetting hardly differs from a single-channel pipette.Adjustment without toolsThe adjustment slider sits under the label window and allows tool-free volume correction directly on the pipette body. In addition, a volume offset can be used to respond to deviating media or site conditions.Reprocessing in the autoclaveThe Transferpette S -8 is autoclavable as a complete device, 121 °C, 2 bar, holding time at least 15 minutes according to DIN EN 285, without any components having to be dismantled beforehand. On the electronic sister series, the Transferpette -8 electronic, only the unscrewable pipette shaft can be autoclaved, which is a significant difference between the mechanical and the electronic version.Ergonomics in series operationSo that 8 pistons can be guided in parallel without excessive effort, the pipette body of the Transferpette S -8 is designed for continuous use on the plate. The finger stroke remains even across the entire 5-50 µl range, and the span of the hand is not overtaxed. The number of channels is clearly legible on the housing, and the grip section and tip cone are kept neutral in colour.Place within the Transferpette S familyIn the same model system, the Transferpette S -12 with 12 channels is also available alongside the 8-channel version, and for individual samples the single-channel series Transferpette S Fix and Variable. The adjustment method and autoclavability are built the same way across the entire series, so switching between channel counts requires no new training.Selection guideFor smaller additions below 5 µl, the neighbouring variant with 0.5-10 µl (MPN 705900) is available, and for larger assay volumes the version with 10-100 µl (MPN 705908). Channel count, model and adjustment method stay identical when switching between volume steps of the same series, only the test range and the corresponding tip size change. If you are unsure which range suits your protocol, base the choice on the volume you pipette most often within the series and pick the range in which this volume lies as close as possible to the upper test point.Typical applicationsReagent addition column by column in microtitre platesBuffer changes between adjacent well columnsDilution series in the two-digit microlitre range in parallel across eight channelsAccuracy across the test rangeTesting is carried out at three test volumes (100 %, 50 % and 10 % of the nominal volume 5-50 µl). The systematic measurement error is given as 50 µl: ± 0.8 % / 25 µl: ± 1.4 % / 5 µl: ± 6 %, the random measurement error (coefficient of variation) as 50 µl: ± 0.4 % / 25 µl: ± 0.8 % / 5 µl: ± 3 %. As with any air displacement pipette, the relative deviation grows towards the lower test point and is tightest at the upper test point. In practical terms, dosing close to the upper end of the nominal volume is the most reproducible, while smaller partial volumes benefit from an additional check in critical dilution series.Technical detailsFeatureValueNumber of channels8Volume range5-50 µlIncrement0.05 µlModelM8-50Pipette tip2-200 µlSystematic measurement error (100/50/10 %)50 µl: ± 0.8 % / 25 µl: ± 1.4 % / 5 µl: ± 6 %Random measurement error CV (100/50/10 %)50 µl: ± 0.4 % / 25 µl: ± 0.8 % / 5 µl: ± 3 %Autoclavabilitycomplete, 121 °C, 2 bar, at least 15 min according to DIN EN 285AdjustmentEasy Calibration, adjustment slider under the label window, volume offsetManufacturer part no. (MPN)705906Scope of deliveryTransferpette S -8, model M8-50, volume range 5-50 µl, MPN 705906Quality certificateSilicone greasePipette tips are not included in the scope of delivery and are available separately. When ordering several channel counts and volume ranges, a combined collective order is recommended to bundle delivery times and shipping costs.Procurement and serviceAccessories such as pipette tips, spare parts or calibration services are assembled by the procurement service of LT Laborhandel on request. Details at lt-laborhandel.com/service.
Brand Titrette Bottle-mounted Burette, 50 ml, with RS232 Interface, DE-M, 4760261
The Titrette 50 ml with an RS232 interface has the same margin of error as the standard version, but also features a data interface. This allows the titration value to be transferred directly to a PC or a titration log, rather than having to type it out from the display.RS232 instead of manual transferWith a 50 ml volume, these are usually runs involving high consumption of titrant, which also need to be documented, for example in water or environmental analysis. The RS232 interface transfers the consumption value directly to a titration log or a LIMS connection, without the need for an additional transfer step.Error limits of the 50 ml versionFor 50 ml, Brand specifies an accuracy of 0.06 per cent / 30 µl and a coefficient of variation of 0.02 per cent / 10 µl, identical to the Titrette without a PC interface in the same volume range. The RS232 interface does not affect dosing accuracy; it merely extends the output of the measured value.Typical applicationsTitrations involving high consumption of titrant and where documentation is requiredWater and environmental analysis with electronic data loggingConnection to titration or LIMS software via the serial interfaceBatch titrations where manual transfer from the display would be too prone to errorsSelection guide: RS232 for high consumptionWith a 50 ml volume, batch runs often involve high consumption of titrant, for example in water and environmental analysis, where every result must be documented. The RS232 interface handles the logging here, eliminating the need to read off and type in each value individually. For lower consumption, 10 ml and 25 ml options are available, also with or without a PC interface. For series with many repetitions, the time saved compared to manual recording adds up significantly, particularly when multiple titration stations with different volumes are being documented in parallel.Titrette RS232 versus glass burette and DispensetteA 50 ml Class A glass burette requires the value to be recorded manually, whilst the Titrette RS232 transmits it electronically. Compared to a Dispensette, the Titrette is designed for continuous summation during titration, rather than for a fixed repeat dose.Technical detailsVolume range50 mlAccuracy0.06% / 30 µlCoefficient of variation0.02% / 10 µlPC interfaceRS232Connection threadGL45MarkingDE-MPower supply2 AAA/UM4/LR03 micro batteriesUse and maintenanceThe Titrette is screwed directly onto the stock bottle containing the measuring solution using one of the three PP bottle adaptors supplied (GL 32, S 40, NS 29/32) directly onto the storage bottle containing the standard solution; the telescopic suction tube can be adjusted to bottle heights between 170 and 330 mm. Before first use and after each bottle change, the system must be vented, as with any piston burette, to ensure that no air bubbles in the cylinder affect the dosing accuracy. The return tube allows any accidentally dispensed excess titrant to be returned to the bottle, rather than having to restart the titration. Two brown-tinted light-protection windows shield light-sensitive titrants without the need to cover the bottle completely. The counter is powered by two AAA/UM4/LR03 micro-batteries, which can be replaced without tools as soon as the display indicates a low battery voltage. A mains connection is not required; the device remains operational even at workstations without a socket.Scope of deliveryTitrette bottle-mounted burette for GL45-threaded bottlesMarked DE-MQuality certificateTelescopic suction tube, 170 to 330 mmReturn tube2 micro batteries (AAA/UM4/LR03)3 PP bottle adaptors (GL 32, S 40, NS 29/32)2 brown-tinted light-protection windowsFrequently asked questionsWhat data does the RS232 interface output? The titration consumption value, as specified by the manufacturer, for direct transfer to a PC or analysis software.How accurately does the Titrette dispense 50 ml via RS232? Accuracy: 0.06 per cent or 30 µl; coefficient of variation: 0.02 per cent or 10 µl, identical to the version without a PC interface.Which bottle threads are compatible with the Titrette? GL45 directly; via a PP adapter, also GL 32, S 40 and NS 29/32.What is included in the scope of delivery? The Titrette with RS232 interface, telescopic suction tube, return tube, three bottle adaptors, two micro-batteries and a quality certificate.Individual requirements and procurement serviceYou can enquire about suitable bottle adaptors, replacement suction tubes or other accessories for the Titrette range via LT Laborhandel’s procurement service. Contact us at lt-laborhandel.com/service.
Brand Transferpette S Starter Kit Midi, 3 Pipettes 2 µl to 1000 µl, DE-M, 705891
Anyone who wants to equip a laboratory with several volume ranges in one go rarely needs just a single pipette. The Brand Transferpette S Starter Kit Midi bundles 3 variable single-channel pipettes from 2 µl to 1000 µl in one set and thus covers in one go what would otherwise require several individual orders, ready for use directly in the stand and typically suitable for general laboratory routine with medium volumes, from the dilution series to preparing buffers. The stand supplied ensures a tidy workstation from the start.3 pipettes for the complete rangeThe Starter Kit Midi combines 3 Transferpette S single-channel pipettes with variable volume: the D-20 for 2-20 µl with an increment of 0.02 µl, the D-200 for 20-200 µl with an increment of 0.2 µl and the D-1000 for 100-1000 µl with an increment of 1 µl. Together the devices cover the range 2 µl to 1000 µl. A matching pipette tip size is defined for each pipette, included in the set as 2x TipBox 2-200 µl, 1x TipBox 50-1000 µl.Precision under German legal metrologyAll pipettes in the set carry the DE-M marking under German legal metrology, and the accuracy testing is based on DIN EN ISO 8655 with three test points per volume range (100, 50 and 10 percent of the nominal volume). At the respective nominal volume, the accuracy A lies, depending on the model, between ±0.8 % and ±0.6 %, a level of accuracy that matters in dilution series and quantitative analyses. The accuracy A describes the deviation of the mean dispensed volume from the nominal value, the coefficient of variation CV the scatter of several repetitions at the same volume, both values increase towards the lower end of a volume range.One-handed operation and tool-free adjustmentEach pipette in the set can be operated with one hand, from volume adjustment to tip ejection, and a lock (UNLOCK/LOCK) protects the setting during series work. If a pipette deviates from the factory setting, it can be readjusted without tools via Easy Calibration, and an adjustment slider under the label window makes this visible.Autoclavable fully assembledAll pipettes in the set tolerate autoclaving completely, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes according to DIN EN 285, in the fully assembled state and without prior dismantling.Quality certificate and warranty includedA quality certificate (Performance Certificate) is included in the Starter Kit Midi, documenting the testing. Brand grants a three-year warranty on the single-channel pipettes of the Transferpette S series.Which laboratory this combination suitsA routine laboratory covering dilution series, buffer preparation and general sample preparation in the medium volume range rarely goes below 2 µl or above 1 ml. The Starter Kit Midi bundles exactly this medium range, without also buying the extremes of the series.Advantage of the set over individual procurementThe Starter Kit Midi bundles 3 volume ranges in one order, instead of procuring each pipette individually and waiting for several delivery times. Since all pipettes come from the same series, they operate identically, an advantage when training new colleagues. The 3 shelf holders supplied hold all 3 pipettes within easy reach between two applications, instead of leaving them lying loose on the laboratory bench.Typical applicationsgeneral laboratory routine with medium volumes, from the dilution series to preparing buffersDilution series and reagent addition across several volume rangesInitial equipment for newly set up workstations as well as training and further educationWorkstations with changing staff and different volume requirementsTechnical detailsCompositionTransferpette S variable, single-channel, 3-piece Starter KitVolume range D-202-20 µl, increment 0.02 µlVolume range D-20020-200 µl, increment 0.2 µlVolume range D-1000100-1000 µl, increment 1 µlOperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under the label windowSterilisationAutoclavable fully assembled at 121 °C, 2 bar, at least 15 minutes according to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable, D-20 (2-20 µl)1x Transferpette S variable, D-200 (20-200 µl)1x Transferpette S variable, D-1000 (100-1000 µl)2x TipBox 2-200 µl, 1x TipBox 50-1000 µl, filled3 shelf holders1x quality certificate1x silicone greaseIndividual requirements & procurement serviceIf your own requirements deviate from this composition, LT Laborhandel also offers the individual Transferpette S models and further sets with a different volume combination. The procurement service of LT Laborhandel supports with pipette tips, spare parts and calibration.
BRAND seripettor bottle-top dispenser ® | 1–10 ml | Item No. 4720140
The workhorse for everyday laboratory use The BRAND seripettor ® (1–10 ml) is the cost-effective and robust solution for your standard dispensing tasks. Designed for the ‘low-cost’ sector, this bottle-top dispenser proves its worth in situations where high-end equipment is often over-specified. It is ideal for use with biological buffers, nutrient solutions and even warm culture media (agar), without compromising on precision. Efficiency through automatic stroke Thanks to the integrated return spring, the piston lifts automatically after each dispensing stroke and refills the cylinder automatically. This enables fast, fatigue-free batch processing, ideal for high sample throughput. Volume adjustment is carried out safely via a toothed rack, which reliably prevents accidental adjustment of the volume. Robust design for a wide range of media The seripettor ® is specially designed for: Culture media: Agar media can be dispensed at temperatures of up to 60 °C. Biological solutions: Ideal for buffers, detergents, anti-foaming agents and vitamin solutions. Low-concentration acids and alkalis: Also suitable for media such as NaOH, KOH or ammonia. Polar solvents: Compatible with ethanol, methanol, acetylacetone and others. Easier to maintain than any other A particular highlight is the replaceable dosing unit. Should wear and tear occur due to contaminated or crystallising media, you can replace the entire unit (cylinder & piston) without tools and at low cost. The unit is therefore ready for use again in a matter of seconds – without expensive repairs or long downtimes. Technical details Model: seripettor ® (standard) Volume range: 1–10 ml Graduation (scale): 0.2 ml Accuracy (R): ≤ ± 1.2 % (120 µl) Coefficient of variation (CV): ≤ 0.2% (20 µl) Operating limits: Temperature: +15 °C to +40 °C (agar up to +60 °C) Vapour pressure: up to 500 mbar Density: up to 2.2 g/cm³ Viscosity: up to 300 mm²/s Materials (in contact with the medium): PP, PE, EPDM Contents 1x BRAND seripettor®-bottle-top dispenser (1–10 ml) 1x dosing cannula 1x suction tube (length approx. 250 mm) 1x Spare dosing unit (cylinder/piston) 3x PP adaptors (GL 32, GL 38, S 40) 1x Quality certificate Note: The unit fits GL 45 threads as standard. Customised requirements & procurement service Do you require accessories such as sterile replacement dispensing units, flexible dispensing hoses for batch filling, or spare parts in larger quantities? If you cannot find the accessories you require directly in the shop, please use our bespoke procurement service. We will promptly provide you with a suitable quote for your BRAND seripettor ®.
BRAND Dispensette S Analog, with return valve, bottle-top dispenser (0.1 – 100 ml) – 0.5 ml – 5 ml
The classic model with added efficiency: BRAND Dispensette S Analog (with return valve) The BRAND Dispensette S Analog is the globally recognised standard for precise dispensing directly from the stock bottle. In this version, the device is fitted with a return valve as standard. This small but crucial feature revolutionises your workflow during degassing: instead of wasting valuable reagent by discarding it into a beaker, you simply return it to the bottle whilst degassing. This saves costs and protects the environment. Simple, Safe, Analogue The ‘S’ generation stands for ‘Safe, Simple, Efficient’. Analogue adjustment: The desired volume is set using a mechanical slide control with an internal rack. This guarantees an absolutely secure setting that cannot be accidentally altered, even during hectic operation. Smooth operation: Thanks to advanced piston and cylinder materials, the piston glides almost effortlessly. Suction and ejection require minimal force – a relief for your joints during long production runs. Flexibility: The valve block can be rotated through 360°, so you can always align the dispensing tube perfectly with the bottle’s label. Backflow prevention valve: How it works A simple turn of the valve is all it takes: ‘Back-dosing’ position: The piston is moved to remove air bubbles from the cylinder. The liquid flows back into the bottle. No splashing, no wastage. ‘Dosing’ position: Once the cylinder is free of air bubbles, switch the valve over and dispense precisely into your container. Universal use (colour code: red) The Dispensette S covers an extremely wide range of media. It is ideal for corrosive reagents such as concentrated acids (e.g. H₃PO₄, H₂SO₄), alkalis (e.g. NaOH, KOH), salt solutions and many organic solvents. (Exception: For hydrofluoric acid, please use the Trace Analysis version). Technical data Model: Dispensette S Analogue Special feature: Includes a backflow valve Adjustment type: Analogue (slider) Volume range: 0.1 ml to 100 ml (depending on the variant selected) Materials in contact with the medium: borosilicate glass, Al₂O₃ ceramic, platinum-iridium, ETFE, FEP, PFA, PP (screw cap) Operating limits: Vapour pressure: max. 600 mbar Viscosity: max. 500 mm²/s Temperature: max. +40 °C Density: max. 2.2 g/cm³ Autoclavable: Yes, completely at 121 °C (without disassembly) Certified for compliance: Yes (DE-M) Contents 1 x BRAND Dispensette S Analog (volume as selected above) 1 x return valve (already fitted) 1 x Dispensing cannula 1 x telescopic suction tube (adjustable in length, suitable for the nominal volume) 1 x assembly key 1 x adapter set for various bottle threads (polypropylene) (For 1, 2, 5, 10 ml: GL 24–25, GL 28/S 28, GL 32–33, GL 38) (For 25, 50, 100 ml: GL 32–33, GL 38, S 40) 1 x quality certificate 1 x user guide Customised requirements & accessories Do you have the right storage bottle? Bottles: We stock laboratory bottles with a GL 45 thread (standard) in clear glass or amber glass (light-protective). Extensions: For particularly deep containers, we offer extended suction tubes and flexible discharge hoses (for batch dispensing). Please contact our procurement service for spare parts or specialist accessories.
Brand Titrette Bottle-Top Burette, 25 ml, DE-M, 4760151
With 25 ml, the Titrette covers the volume most often required in titration practice. The bottle-top burette screws directly onto the GL45 supply bottle and handles dispensing and display digitally, instead of draining the standard solution via a separate glass burette with a stopcock.Counter instead of meniscus readingThe dispensed value appears as a number on the display, not as a line on a glass scale. This removes the usual source of error when reading the meniscus, especially with coloured or turbid titration solutions where the scale is hard to see.Error limits of the 25 ml versionFor 25 ml, Brand specifies an accuracy of 0.07 percent or 18 µl and a coefficient of variation of 0.025 percent or 6 µl. These values match the error limits stated in the instructions for use for this volume range.Typical applicationsVolumetric titrations in routine quality controlRecurring titrations with constant volume requirement, for example acid-base or redox titrationsWorkstations with several titration bottles, where each bottle carries its own TitretteTraining establishments where a digital counter makes handling the burette easierSelection guide: which volume for which titrationWith 25 ml, this version covers the range needed most often in practice, between the fine 10 ml range for small consumption quantities and the 50 ml range for series with high demand. Accuracy 0.07 percent or 18 µl and coefficient of variation 0.025 percent or 6 µl lie between the two other volume ranges. Anyone who does not want to read the consumption value manually but pass it directly to a LIMS or an Excel spreadsheet will also find the same 25 ml range with an RS232 interface in the product range.Titrette compared with glass burette and DispensetteA class A glass burette requires reading the meniscus on a printed scale, the Titrette shows the same value digitally on the counter, and both are operated manually. Compared with a Dispensette, the difference lies in the purpose: the Dispensette repeatedly dispenses a fixed, preselected volume, the Titrette sums the consumption during a single titration up to the colour or potential change.Technical detailsVolume range25 mlAccuracy0.07 % / 18 µlCoefficient of variation0.025 % / 6 µlConnection threadGL45MarkingDE-MPower supply2 micro batteries AAA/UM4/LR03Application and maintenanceThe Titrette screws directly onto the supply bottle of the standard solution via one of the three supplied PP bottle adapters (GL 32, S 40, NS 29/32), and the telescopic filling tube can be adjusted to bottle heights between 170 and 330 mm. Before first use and after every bottle change, the system must be primed like any piston burette so that no air bubble in the cylinder impairs dosing accuracy. The recirculation tube allows standard solution dispensed in excess by mistake to be returned to the bottle instead of starting the titration anew. Two amber-tinted light protection windows protect light-sensitive standard solutions without requiring the bottle to be completely covered. The counter is operated by two type AAA/UM4/LR03 micro batteries, which can be replaced without tools as soon as the display signals low battery voltage. A mains connection is not required, and the device remains ready for use even at workstations without a power socket.Scope of deliveryTitrette bottle-top burette for GL45 threaded bottlesDE-M markedQuality certificateTelescopic filling tube, 170 to 330 mmRecirculation tube2 micro batteries (AAA/UM4/LR03)3 PP bottle adapters (GL 32, S 40, NS 29/32)2 amber-tinted light protection windowsFrequently asked questionsWhat does the DE-M marking on the Titrette mean? DE-M is the German verification mark under the Weights and Measures Act, it identifies the device as suitable for applications requiring official verification.How accurately does the Titrette 25 ml dispense? Accuracy 0.07 percent or 18 µl, coefficient of variation 0.025 percent or 6 µl, according to the manufacturer.Which bottle thread fits the Titrette? GL45 directly, plus GL 32, S 40 and NS 29/32 via the supplied PP adapters.What is included in the scope of delivery? The Titrette itself, telescopic filling tube, recirculation tube, three bottle adapters, two micro batteries and a quality certificate.What happens if I accidentally dispense too much standard solution? The excess amount can be returned to the supply bottle via the supplied recirculation tube without starting the titration anew.Individual requirements & procurement serviceSuitable bottle adapters, replacement filling tubes or further accessories for the Titrette series can be requested via the procurement service of LT Laborhandel. Contact via lt-laborhandel.com/service.
Brand Titrette Bottle-Top Burette, 10 ml, DE-M, 4760141
The Titrette 10 ml is the finest volume range of the Brand bottle-top burette and is suitable for titrations where a few millilitres of standard solution are sufficient and every drop counts. It screws directly onto the GL45 supply bottle and replaces the classic glass burette including stand at the workstation.Digital display instead of estimated readingInstead of a glass scale, the Titrette shows the dispensed value on a counter with display. This reduces reading errors such as can occur at the meniscus edge of a classic burette, especially with small volumes, where a tenth of a millilitre already makes up a noticeable share of the total volume.Error limits for the 10 ml rangeFor the 10 ml version, Brand specifies an accuracy of 0.1 percent or 10 µl and a coefficient of variation of 0.05 percent or 5 µl. These are tighter absolute error limits than for the larger Titrette volumes, because the percentage and microlitre values shift accordingly with a smaller total volume.Typical applicationsTitrations with low consumption of standard solution, for example with concentrated samplesRepeated small-volume titrations in routine analysisWorkstations without space for a classic burette with standEducation and training, where a digital counter is meant to make reading easierSelection guide: which volume for which titrationThe Titrette series covers 10, 25 and 50 ml. Anyone who mainly works with low consumption of standard solution, for example with highly concentrated samples or small sample quantities, is right with the 10 ml version: the absolute error limits of 10 µl accuracy and 5 µl coefficient of variation are the tightest of the whole series. Anyone who more often needs volumes close to 20 to 30 ml is better served by the 25 ml range, anyone who regularly consumes significantly more by the 50 ml Titrette. For electronic transfer of the consumption value to a LIMS or an Excel evaluation, each of the three volume ranges is additionally available with an RS232 interface.Titrette compared with glass burette and DispensetteCompared with a classic class A glass burette, the Titrette replaces reading at the meniscus with a digital counter, but it is still operated manually via the dosing button. The Titrette differs from a Dispensette in its operating principle: the Dispensette repeatedly dispenses a previously set volume in the same amount, whereas the Titrette continuously sums up the consumption up to the end point of the titration and displays the cumulative value.Technical detailsVolume range10 mlAccuracy0.1 % / 10 µlCoefficient of variation0.05 % / 5 µlConnection threadGL45MarkingDE-MPower supply2 micro batteries AAA/UM4/LR03Application and maintenanceThe Titrette screws directly onto the supply bottle of the standard solution via one of the three supplied PP bottle adapters (GL 32, S 40, NS 29/32), and the telescopic filling tube can be adjusted to bottle heights between 170 and 330 mm. Before first use and after every bottle change, the system must be primed like any piston burette so that no air bubble in the cylinder impairs dosing accuracy. The recirculation tube allows standard solution dispensed in excess by mistake to be returned to the bottle instead of starting the titration anew. Two amber-tinted light protection windows protect light-sensitive standard solutions without requiring the bottle to be completely covered. The counter is operated by two type AAA/UM4/LR03 micro batteries, which can be replaced without tools as soon as the display signals low battery voltage. A mains connection is not required, and the device remains ready for use even at workstations without a power socket.Scope of deliveryTitrette bottle-top burette for GL45 threaded bottlesDE-M markedQuality certificateTelescopic filling tube, 170 to 330 mmRecirculation tube2 micro batteries (AAA/UM4/LR03)3 PP bottle adapters (GL 32, S 40, NS 29/32)2 amber-tinted light protection windowsFrequently asked questionsWhat does the DE-M marking on the Titrette mean? DE-M is the German verification mark under the Weights and Measures Act, it identifies the device as suitable for applications requiring official verification.How accurately does the Titrette 10 ml dispense? Accuracy 0.1 percent or 10 µl, coefficient of variation 0.05 percent or 5 µl, according to the manufacturer.Which bottle thread fits the Titrette? GL45 directly, plus GL 32, S 40 and NS 29/32 via the supplied PP adapters.What is included in the scope of delivery? The Titrette itself, telescopic filling tube, recirculation tube, three bottle adapters, two micro batteries and a quality certificate.What happens if I accidentally dispense too much standard solution? The excess amount can be returned to the supply bottle via the supplied recirculation tube without starting the titration anew.Individual requirements & procurement serviceSuitable bottle adapters, replacement filling tubes or further accessories for the Titrette series can be requested via the procurement service of LT Laborhandel. Contact via lt-laborhandel.com/service.
BRAND seripettor bottle-top dispenser ® | 2.5–25 ml | Item No. 4720150
Efficient dispensing of medium volumes The BRAND seripettor ® (2.5–25 ml) is the ideal choice for any laboratory seeking a cost-effective and robust solution for dispensing volumes of up to 25 ml. This instrument bridges the gap between microvolumes and large volumes and is perfectly suited to routine use. Whether nutrient solutions, buffers or agar media – the seripettor ® delivers reliable results at minimal cost per dispensing operation. Automatic refilling for batch work The integrated return spring really comes into its own with volumes up to 25 ml: it automatically lifts the piston after each dispensing stroke and refills the cylinder on its own. This enables fast, effortless operation, even during long dispensing runs. The desired volume can be set in a flash and without the risk of mix-ups via the mechanical rack and pinion. Specialist for culture media and more Thanks to its special combination of materials and design, the seripettor ® is particularly versatile: Culture media: Agar media can be dispensed without any problems up to a temperature of 60 °C. Biological reagents: Perfect for buffer solutions, detergents, vitamin solutions or hydrogen peroxide. Acids & alkalis: Suitable for weakly concentrated or diluted acids and alkalis (e.g. NaOH, KOH). Solvents: Compatible with polar solvents such as ethanol, methanol or acetylacetone. Maintenance in seconds A key advantage in the demanding day-to-day laboratory environment is the replaceable dosing unit. If the unit becomes contaminated or worn due to crystallising media, there is no need to send the device in for repair. Simply replace the entire dosing unit (cylinder and piston) without the need for tools – hygienic, cost-effective and ready for immediate use again. Technical details Model: seripettor ® (standard) Volume range: 2.5 – 25 ml Graduation (scale): 0.5 ml Accuracy (R): ≤ ± 1.2 % (300 µl) Coefficient of variation (CV): ≤ 0.2 % (50 µl) Operating limits: Temperature: +15 °C to +40 °C (agar up to +60 °C) Vapour pressure: up to 500 mbar Density: up to 2.2 g/cm³ Viscosity: up to 300 mm²/s Materials (in contact with the medium): PP, PE, EPDM Contents 1x BRAND seripettor®-bottle-top dispenser (2.5–25 ml) 1x dosing cannula 1x suction tube (length approx. 250 mm) 1x Replacement dosing unit (cylinder/piston) 3x PP adaptors (GL 32, GL 38, S 40) 1x quality certificate Note: The unit fits GL 45 threads as standard. Custom requirements & procurement service Do you require accessories such as longer suction tubes, flexible dispensing hoses (e.g. for batch filling into Petri dishes) or spare parts? If you cannot find the accessories you require directly in the shop, please use our bespoke procurement service. We will promptly provide you with a suitable quote for your BRAND seripettor ®.
Brand Transferpette S Variable Single-Channel Pipette, 0.5-5 ml, DE-M, 705882
Before a medium change, the cell culture supernatant must first be removed, and its amount varies with flask size and fill level. The Brand Transferpette S variable D-5000 covers 0.5-5 ml with an increment of 5 µl.Continuously adjustable with 5 µl incrementThe Transferpette S variable 0.5-5 ml (model D-5000) covers the volume range 0.5-5 ml in steps of 5 µl. The volume is set with a dial without tools, and a lockable position (UNLOCK/LOCK) prevents accidental adjustment during serial work. To match the volume range, Brand recommends the pipette tip size 500-5000 µl. In total, the variable Transferpette S series comprises ten volume sizes from 0.1 µl to 10 ml, so a suitable model from the same range can be combined for almost every working range. One range smaller is the Transferpette S variable 100-1000 µl (D-1000, MPN 705880). One range larger follows the Transferpette S variable 1-10 ml (D-10000, MPN 705884).Accuracy to DIN EN ISO 8655The accuracy is verified to DIN EN ISO 8655 at three test points, at the full, half and one tenth of the nominal volume. At the full nominal volume, the accuracy A is up to ±0.6 %, at half up to ±0.8 % and at one tenth up to ±3 %. The coefficient of variation CV is correspondingly up to 0.2 %, 0.3 % and 0.6 %. The three test points show that the accuracy decreases towards the lower end of the volume range, an effect that occurs with every air displacement pipette and should be taken into account when choosing the suitable model. The DE-M marking confirms the testing under German weights and measures law. The accuracy A describes the deviation of the average dispensed volume from the target value, and the coefficient of variation CV the scatter of several repetitions at this volume.Tool-free adjustment with Easy CalibrationIf the calibration drifts during operation, it can be readjusted directly on the pipette without tools using Easy Calibration, via the adjustment slider under the label window. A red bar in the display window indicates a changed factory setting.Fully autoclavableFor sterile work, the pipette can be autoclaved in the assembled state, as a complete unit, at 121 degrees Celsius and 2 bar, with a holding time of at least 15 minutes to DIN EN 285.Variable or fixed: which design fitsThe amount of cell culture supernatant removed before the medium change depends on the fill level of the respective flask, and the variable Transferpette S D-5000 suits this. If exactly the same volume is always removed, for example with standardised flask sizes, a Transferpette S Fix from the same range is sufficient. For the D-5000 with its range of 0.5-5 ml, the specific working step therefore decides whether variable or fixed is the more suitable design.Quality certificate and warranty includedThe pipette comes with a quality certificate (Performance Certificate) that documents the testing and can be filed directly into your own quality assurance. A three-year warranty applies to the single-channel pipettes of the Transferpette S series.Typical applicationsRemoving cell culture supernatant before the medium change with a fluctuating volumeTransferring reagents and preparing stock solutions in the millilitre rangeBuffer preparation in general laboratory routine with variable volumeInitial laboratory equipment when larger volume ranges are needed flexiblyLaboratory routine with high sample throughput and slightly changing volumesTechnical detailsModelTransferpette S variable, D-5000Volume range0.5-5 mlIncrement5 µlRecommended tip size500-5000 µlAccuracy (A) at 100/50/10 % of nominal volume≤ ±0.6 % / ±0.8 % / ±3 %Coefficient of variation (CV) at 100/50/10 % of nominal volume≤ 0.2 % / 0.3 % / 0.6 %OperationOne-handed operation, volume lock UNLOCK/LOCKAdjustmentEasy Calibration, tool-free, adjustment slider under label windowSterilisationFully autoclavable at 121 °C, 2 bar, at least 15 minutes to DIN EN 285MarkingDE-MScope of delivery1x Transferpette S variable 0.5-5 ml (D-5000)1x quality certificate1x silicone greaseIndividual requirements & procurement serviceIf the volume range does not match the complete requirement, it is worth looking at the neighbouring Transferpette S models or at the starter kits with several volume ranges in one set. For suitable pipette tips, spare parts, individual calibration or larger quantities for several workstations, the procurement service from LT Laborhandel can help.
Brand Transferpette S -8 Multichannel Pipette, 8-Channel, 30-300 µl, DE-M, 705912
When changing culture medium in plate formats, volumes in the three-digit microlitre range regularly occur. The Transferpette S -8 with 30-300 µl covers this requirement column by column across eight channels and marks the upper limit of the S-8 series.8 individually manufactured and tested pistons are fitted in model M8-300, which thus serves 30-300 µl at an increment of 0.5 µl. Matching tips in the 5-300 µl range can be ejected without contact via the ejection mechanism. The common guidance of all 8 pistons in the housing keeps the effort close to the level of a single-channel pipette.Adjustment without toolsVolume correction is done via Easy Calibration: a slider under the label window, no tool required. For special cases such as other media or locations, a volume offset is also available.Reprocessing in the autoclaveThe Transferpette S -8 is fully autoclavable, 121 °C, 2 bar, at least 15 minutes according to DIN EN 285, and the device remains assembled in the process. On the electronic sister series, the Transferpette -8 electronic, only the unscrewable pipette shaft can be autoclaved, which is a significant difference between the mechanical and the electronic version.Ergonomics in series operationWith 8 channels guided together, a housing is required that does not overtax the span of the hand across the entire 30-300 µl range. The pipette body of the Transferpette S -8 is designed for exactly this, and the finger stroke remains even. The number of channels and the grip section are designed in neutral colours and are easy to read.Place within the Transferpette S familyComplementing the 8-channel version, the Transferpette S -12 with 12 channels belongs to the same model system, and for individual samples the single-channel series Transferpette S Fix and Variable. Uniform adjustment and autoclavability across the entire series make it easier to use several channel counts in the same laboratory.Selection guideBelow it is the neighbouring variant with 20-200 µl (MPN 705910). For volumes beyond 300 µl, the single-channel series Transferpette S Variable with larger models is available. Channel count, model and adjustment method stay identical when switching between volume steps of the same series, only the test range and the corresponding tip size change. If you are unsure which range suits your protocol, base the choice on the volume you pipette most often within the series and pick the range in which this volume lies as close as possible to the upper test point.Typical applicationsMedium changes column by column in cell culture plate formatslarger reagent volumes in parallel across eight wellspre-dilutions column by column before a measurement seriesAccuracy across the test rangeTesting is carried out at three test volumes (100 %, 50 % and 10 % of the nominal volume 30-300 µl). The systematic measurement error is given as 300 µl: ± 0.8 % / 150 µl: ± 1.4 % / 30 µl: ± 4 %, the random measurement error (coefficient of variation) as 300 µl: ± 0.3 % / 150 µl: ± 0.6 % / 30 µl: ± 1.5 %. As with any air displacement pipette, the relative deviation grows towards the lower test point and is tightest at the upper test point. In practice this means that batches at the upper end of the nominal volume turn out most uniform, while smaller partial volumes should be spot-checked in critical applications.Technical detailsFeatureValueNumber of channels8Volume range30-300 µlIncrement0.5 µlModelM8-300Pipette tip5-300 µlSystematic measurement error (100/50/10 %)300 µl: ± 0.8 % / 150 µl: ± 1.4 % / 30 µl: ± 4 %Random measurement error CV (100/50/10 %)300 µl: ± 0.3 % / 150 µl: ± 0.6 % / 30 µl: ± 1.5 %Autoclavabilitycomplete, 121 °C, 2 bar, at least 15 min according to DIN EN 285AdjustmentEasy Calibration, adjustment slider under the label window, volume offsetManufacturer part no. (MPN)705912Scope of deliveryTransferpette S -8, model M8-300, volume range 30-300 µl, MPN 705912Quality certificateSilicone greasePipette tips are not included in the scope of delivery and are available separately. When ordering several channel counts and volume ranges, a combined collective order is recommended to bundle delivery times and shipping costs.Procurement and serviceAccessories such as pipette tips, spare parts or calibration services are assembled by the procurement service of LT Laborhandel on request. Details at lt-laborhandel.com/service.
Brand Dispensette S Bottle-Top Dispenser, Digital, 0.2-2 ml, without Recirculation Valve, DE-M, 4600320
Anyone in the laboratory who repeatedly needs to prepare calibration standards wants to be able to read the volume without estimating the scale by eye. With 0.2 to 2 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.Media compatibilitySuitable for aggressive reagents, concentrated alkalis and acids such as phosphoric acid or sulphuric acid, salt solutions and many organic solvents. Not suitable for hydrofluoric acid, hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids. The yellow Dispensette S Organic is intended for concentrated hydrochloric and nitric acid, THF and trifluoroacetic acid; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.AutoclavabilityThe complete device is autoclavable: steam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclave. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.Distinction within the Dispensette S standard seriesCompared with the Fix version of the same series, the Digital variant allows the volume to be chosen freely within the stated range, read from the counter rather than from a scale as with Analog. For workstations with constantly changing target volumes this is the more practical route, whereas for a single fixed value the simpler Fix version is sufficient.Accuracy and graduationAccuracy is 0.5 %/10 µl, the coefficient of variation figure 0.1 %/2 µl, the graduation 0.01 ml. These values apply to all volumes set within the range 0.2 to 2 ml and were determined according to the general test procedure for piston-stroke devices.Digital counterThe digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.Without recirculation valveThis version works without a recirculation valve. The design is therefore simpler, with one less moving part in the dispensing path. For applications where every dispensed volume goes directly into the target vessel and no return is needed, this slimmer design is sufficient.Mounting and handlingAfter screwing on the matching bottle adapter and shortening the telescopic filling tube to the bottle height, the next step is venting: draw in and dispense into a waste container several times until no more air bubbles are visible. The mounting key supplied is used for later valve changes.Frequently asked questionsCan the counter be reset to zero?Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.Which bottle sizes fit the Dispensette S Digital?According to the accessories table, the adapters GL 24-25, GL28/S 28, GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.For which work step is the volume range 0.2 to 2 ml intended?Typical uses include the spiking of samples with defined very small amounts, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.Typical applicationsPreparing calibration standardssmall reagent additions in titrationSpiking of samples with defined very small amountsTechnical detailsLineBrand Dispensette S, DigitalVolume0.2 to 2 mlGraduation0.01 mlAccuracy0.5 %/10 µlCoefficient of variation0.1 %/2 µlRecirculation valvenoMedia compatibilityStandard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percentMaterials of wetted partsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapterAutoclavabilitysteam sterilisation at 121 °C and 2 bar overpressure for at least 15 minutes to DIN EN 285, followed by about 2 hours of cooling time in the closed autoclaveMarkingDE-MManufacturer article no.4600320Scope of deliveryBottle-top dispenser for GL45 threaded bottlesDischarge tubeTelescopic filling tubeMounting keyBottle adapter matching the volumeQuality certificateOperating manualIndividual requirements and procurement serviceFor additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.
Brand Transferpette S -8 Multichannel Pipette, 8-Channel, 0.5-10 µl, DE-M, 705900
In molecular biology, a single small addition often decides the quality of an entire batch. The Transferpette S -8 with 8 channels in the 0.5-10 µl range is designed for exactly such minimal volumes, distributed column by column across a 96-well plate.Each of the 8 pistons is individually manufactured and tested, and model M8-10 covers the 0.5-10 µl range with an increment of 0.01 µl. Matching tips in the 0.5-20 µl range sit firmly on all channels at the same time and can be removed without contact via the ejection mechanism. Because all 8 pistons are guided in a common housing, the effort required for aspirating and dispensing across the whole number of channels remains comparable to a single-channel pipette.Adjustment without toolsUsing Easy Calibration, the volume can be corrected at the adjustment slider under the label window, a volume offset compensates for deviations with special media or site conditions. No additional tool is needed for this, as the adjustment is made directly on the pipette body.Reprocessing in the autoclaveThe Transferpette S -8 is fully autoclavable, 121 °C, 2 bar, at least 15 minutes according to DIN EN 285. Dismantling into individual parts before sterilisation is therefore not necessary. On the electronic sister series, the Transferpette -8 electronic, only the unscrewable pipette shaft can be autoclaved, which is a significant difference between the mechanical and the electronic version.Ergonomics in series operationWith 8 pistons guided in parallel, the effort for aspirating and dispensing requires a housing that does not overtax the span of the hand. The pipette body of the Transferpette S -8 is designed for continuous use on the microtitre plate, and the finger stroke remains even across the entire 0.5-10 µl range. The grip section and tip cone are kept neutral in colour, and the number of channels itself is clearly legible on the housing.Place within the Transferpette S familyIn addition to the 8-channel version, there is the Transferpette S -12 with 12 channels in the same model system, and the single-channel series Transferpette S Fix and Variable is available for individual samples. Model, adjustment method and autoclavability are uniform across the entire series, so laboratories with several channel counts do not have to adapt to different operating logics.Selection guideAnyone who regularly dispenses beyond 10 µl will find the next larger range of the same series in the neighbouring variant with 5-50 µl (MPN 705906), without changing the operating logic. Channel count, model and adjustment method stay identical when switching between volume steps of the same series, only the test range and the corresponding tip size change. If you are unsure which range suits your protocol, base the choice on the volume you pipette most often within the series and pick the range in which this volume lies as close as possible to the upper test point.Typical applicationsAddition of enzyme and master mix column by column in PCR preparationsdispensing the smallest reagent quantities in parallel across eight wellspipetting in the lowest microlitre range for molecular biology series batchesAccuracy across the test rangeTesting is carried out at three test volumes (100 %, 50 % and 10 % of the nominal volume 0.5-10 µl). The systematic measurement error is given as 10 µl: ± 1.6 % / 5 µl: ± 2 % / 1 µl: ± 8 %, the random measurement error (coefficient of variation) as 10 µl: ± 1.0 % / 5 µl: ± 2 % / 1 µl: ± 6 %. As with any air displacement pipette, the relative deviation grows towards the lower test point and is tightest at the upper test point. For daily series work this means: batches close to the nominal volume can be reproduced most tightly, while smaller partial volumes within the range should be cross-checked for particularly critical dilution series.Technical detailsFeatureValueNumber of channels8Volume range0.5-10 µlIncrement0.01 µlModelM8-10Pipette tip0.5-20 µlSystematic measurement error (100/50/10 %)10 µl: ± 1.6 % / 5 µl: ± 2 % / 1 µl: ± 8 %Random measurement error CV (100/50/10 %)10 µl: ± 1.0 % / 5 µl: ± 2 % / 1 µl: ± 6 %Autoclavabilitycomplete, 121 °C, 2 bar, at least 15 min according to DIN EN 285AdjustmentEasy Calibration, adjustment slider under the label window, volume offsetManufacturer part no. (MPN)705900Scope of deliveryTransferpette S -8, model M8-10, volume range 0.5-10 µl, MPN 705900Quality certificateSilicone greasePipette tips are not included in the scope of delivery and are available separately. When ordering several channel counts and volume ranges, a combined collective order is recommended to bundle delivery times and shipping costs.Procurement and serviceAccessories such as pipette tips, spare parts or calibration services are assembled by the procurement service of LT Laborhandel on request. Details at lt-laborhandel.com/service.
Brand Transferpette electronic Single-Channel Pipette, 50-1000 µl, without Power Supply, DE-M, 705346
When dividing larger sample quantities or preparing buffers, volumes in the three-digit microlitre to low millilitre range regularly arise. This 50-1000 µl version is supplied without a power supply.Digital adjustmentEasy Calibration enables digital adjustment via the menu in every mode except GEL. A PIP adjustment is automatically transferred to PIPmix and revPIP, while a DISP adjustment applies exclusively to DISP and is not transferred.Operating modes for different applicationsFour of the five operating modes are available: PIP for standard pipetting, PIPmix for repeated aspirating and dispensing while mixing, revPIP for reverse pipetting of highly viscous, high-vapour-pressure or foaming media, and DISP for dispensing a previously aspirated volume in several partial steps. According to the operating manual, the GEL mode for loading electrophoresis gels is not available for this volume range. The active mode is shown on the display and can be changed with the selector wheel without putting the pipette down.Display and operationVolume, mode and dispensing speed can be set using the rocker switch, selector wheel and display. The motorised drive carries out the piston stroke, and the thumb only operates the trigger. Especially during long series of pipetting in the 50-1000 µl range, this noticeably relieves the hand compared with a purely mechanical pipette, particularly over a whole working shift.Battery and power supply in everyday useThe built-in NiMH battery, made up of three cylindrical AAA single cells (3.6 V, 700 mAh), lasts around 8 hours of continuous pipetting or over 4000 pipetting cycles when fully charged. This version is supplied without a power supply. The battery is fitted at the factory, and a suitable power supply for Europe (order no. 705350) can be ordered separately.Autoclave reprocessingUnlike the mechanical Transferpette S, the electronic series is not autoclaved as a complete device. Only the unscrewable pipette shaft is autoclaved, 121 °C, 2 bar, at least 15 minutes according to DIN EN 285. After autoclaving, a reference run on the handle section is required before pipetting again.Typical applicationsSample dividing and buffer preparation in the millilitre range (assuming an existing power supply)Transferring larger sample volumes between vesselsPreparing stock solutions with DISP serial dispensingSelection guideThe neighbouring variant 10-200 µl (MPN 705303 or 705343) lies below, and the 250-5000 µl version (MPN 705307 or 705347) lies above for even larger volumes. If you already have a suitable power supply in stock, this version without a power supply saves unnecessary accessories. The operating logic is the same across the whole electronic series. When changing the volume range, only the test values, tip size and the corresponding order number change.Accuracy across the test rangeTesting is carried out at three test volumes (100 %, 50 % and 10 % of the nominal volume). The systematic error is at 1000 µl: ± 0.6 % / 500 µl: ± 1.0 % / 100 µl: ± 3.0 %, and the random error (coefficient of variation) at 1000 µl: ± 0.2 % / 500 µl: ± 0.3 % / 100 µl: ± 0.6 %. For series work this means that dosing close to the nominal volume is the most consistent, while smaller partial volumes should be checked for critical preparations, for example by a gravimetric spot check.Technical detailsFeatureValueVersionelectronic, single-channelVolume range50-1000 µlPipette tip50-1000 µlSystematic error (100/50/10 %)1000 µl: ± 0.6 % / 500 µl: ± 1.0 % / 100 µl: ± 3.0 %Random error CV (100/50/10 %)1000 µl: ± 0.2 % / 500 µl: ± 0.3 % / 100 µl: ± 0.6 %Operating modesPIP, PIPmix, revPIP, DISP (GEL not available for this volume range)Autoclavabilitypipette shaft only, 121 °C, 2 bar, min. 15 min according to DIN EN 285, reference run afterwardsBatteryNiMH, 3x AAA, 3.6 V, 700 mAh, approx. 8 h continuous pipetting or over 4000 cyclesPower supply6.5 V DC, 200 mA, order no. 705350, available separatelyAdjustmentEasy Calibration digital via menu control, in every mode except GELManufacturer part no. (MPN)705346Scope of deliveryTransferpette electronic, volume range 50-1000 µl, MPN 705346Quality certificateBattery (fitted at the factory)Silicone greasePipette tips are not included in the scope of delivery and are available separately.Procurement and serviceAccessories such as pipette tips, replacement batteries, power supplies or calibration services are put together on request by the LT Laborhandel procurement service. Details at lt-laborhandel.com/service.
Brand Dispensette S Bottle-Top Dispenser, Digital, 0.2-2 ml, with Recirculation Valve, DE-M, 4600321
Anyone in the laboratory who repeatedly needs to prepare calibration standards wants to be able to read the volume without estimating the scale by eye. With 0.2 to 2 ml, the Dispensette S Digital covers exactly this need and shows the set value on the mechanical counter. The colour code red stands for the standard version, suitable for a wide range of acids, alkalis and solvents, but not for hydrofluoric acid, hydrochloric acid above 20 percent or nitric acid above 30 percent.AutoclavabilityThe complete device is autoclavable: 121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time around 2 hours in the closed autoclave. This means the Dispensette S Digital can also be used where sterile conditions are required for reagent dispensing, for example with microbiological culture media.Distinction within the Dispensette S standard seriesThe three versions of the Dispensette S standard series differ in the way the volume is set, not in accuracy. Anyone who changes more often between volumes within the stated range gets on fastest with the Digital display. Anyone who is comfortable with a mechanical scale saves on purchase cost with the Analog version. And anyone who permanently needs only one volume gets by most easily with the Fix version.Accuracy and graduationAccuracy is 0.5 %/10 µl, the coefficient of variation figure 0.1 %/2 µl, the graduation 0.01 ml. These values apply to all volumes set within the range 0.2 to 2 ml and were determined according to the general test procedure for piston-stroke devices.Digital counterThe digital counter allows fine, reproducible volume setting via the setting wheel. Unlike a Fix version, the volume can be chosen freely within the stated range, which saves time with changing batches in the same volume window because no second device is needed.Recirculation functionThis version has a recirculation valve. Excess liquid can thus be returned to the stock bottle without opening the discharge tube or removing the bottle. This is practical with expensive or hazardous reagents, for example when a calibration check needs several back-weighings or when too much volume was dispensed by mistake.Mounting and handlingThe Dispensette S Digital is mounted directly on the stock bottle using the bottle adapter supplied, and the telescopic filling tube can be shortened to the bottle height. The mounting key is part of the scope of delivery and is needed when changing the valve or discharge tube. After fitting, the device is drawn up and dispensed into a waste container several times until there are no more air bubbles in the system, after which it is ready for use.Media compatibilityThe range of media includes aggressive reagents, highly concentrated acids such as phosphoric or sulphuric acid, salt solutions and many organic solvents. By contrast, hydrofluoric acid, hydrochloric acid above 20 %, nitric acid above 30 %, THF, trifluoroacetic acid, carbon disulphide and explosive liquids must not be dispensed. The yellow Organic variant is intended for concentrated hydrochloric and nitric acid, THF and trifluoroacetic acid; for hydrofluoric acid, Brand recommends the Dispensette S Trace Analysis with platinum-iridium valve spring.Frequently asked questionsCan the counter be reset to zero?Yes, the setting wheel allows any volume within the stated range to be set, and the counter shows the value currently set.Which bottle sizes fit the Dispensette S Digital?According to the accessories table, the adapters GL 24-25, GL28/S 28, GL 32-33, GL 38, S 40 fit. The telescopic filling tube can be shortened to the respective bottle height.For which work step is the volume range 0.2 to 2 ml intended?Typical uses include the spiking of samples with defined very small amounts, the range thus covers an application window in which a smaller or larger volume of the Digital series would no longer fit.Typical applicationsPreparing calibration standardssmall reagent additions in titrationSpiking of samples with defined very small amountsTechnical detailsLineBrand Dispensette S, DigitalVolume0.2 to 2 mlGraduation0.01 mlAccuracy0.5 %/10 µlCoefficient of variation0.1 %/2 µlRecirculation valveyesMedia compatibilityStandard version, red, not for hydrofluoric acid, hydrochloric acid above 20 percent, nitric acid above 30 percentMaterials of wetted partsBorosilicate glass, Al2O3 ceramic, ETFE, FEP, PFA, PTFE, platinum-iridium and PP on screw cap and bottle adapterAutoclavability121 °C, 2 bar, at least 15 minutes to DIN EN 285, cooling time around 2 hours in the closed autoclaveMarkingDE-MManufacturer article no.4600321Scope of deliveryBottle-top dispenser for GL45 threaded bottlesDischarge tube including recirculation tubeTelescopic filling tubeMounting keyBottle adapter matching the volumeQuality certificateOperating manualIndividual requirements and procurement serviceFor additional bottle adapters, replacement valves or further volumes from the Dispensette S Digital series, LT Laborhandel provides support through its own procurement service at lt-laborhandel.com/service.