Gas chromatography
Gas chromatography accessories cover all components required for a GC analysis. LT Laborhandel stocks Restek GC capillary columns (Rxi, Rtx, MXT, Stabilwax) in a wide range of lengths and film thicknesses, inlet liners, leak detectors, electronic flowmeters and standard kits for calibration. Our service team will be happy to advise you on the right column for your method.
Clearance stock: electronic leak detector for gas chromatography, including carrying case & universal mains adapter, 28500
The Restek electronic leak detector (MPN 28500) is the recognised industry standard for performance, reliability and cost-effectiveness in portable leak detection devices for gas chromatography. In instrumental analysis (GC and GC-MS), an absolutely leak-tight flow path is essential for stable baselines and reproducible results. This compact, portable device is extremely easy to use and can be deployed flexibly wherever gas-carrying systems need to be checked for leaks. It helps analysts to locate even the smallest gas leaks quickly and accurately before they cause costly damage, column degradation or unplanned system downtime. The technical basis of the leak detector lies in highly efficient sensor technology that reliably detects a wide range of gases. If a leak occurs at a screw connection, the injector or the gas purification stations, the device simultaneously signals the severity of the leak via a visual LED display and an audible alarm. A major advantage for uninterrupted laboratory operation: the system eliminates tedious waiting times for a full battery charge. The integrated nickel-metal hydride (NiMH) battery provides up to 12 hours of normal operation between charging cycles, but can also be operated continuously whilst charging if required. The mechanical design is consistently geared towards ergonomics, durability and everyday convenience in the laboratory. The hand-held design is complemented by robust side handles, which give the device additional mechanical stability and a non-slip grip. To prevent cross-contamination and protect the sensor, the entire probe unit is easy to clean. After measurement, a practical probe storage compartment ensures cleanliness and protection. Furthermore, the device features an integrated automatic switch-off function that optimises battery power management when not in use, thereby preserving the battery’s life. From an infrastructural and regulatory perspective, this leak detector – designed exclusively for indoor use – is comprehensively certified. It meets strict international compliance requirements such as CE, WEEE, China RoHS 2 and UKCA, and is CSA/UL-approved. The device is supplied as a turnkey complete set, including a robust transport and storage case and a comprehensive charging kit. It is technologically comparable to the older Restek models 22655 and 22839 and can be seamlessly integrated into existing test equipment set-ups. Restek provides a one-year warranty on this system. Technical details Sensors & Detection Specifications Measuring principle: High-end thermal conductivity detector (WLD) Detectable gases (optimised): Helium (He), hydrogen (H₂) Detectable gases (suitable): nitrogen (N₂), argon (Ar), carbon dioxide (CO₂) Sensitivity threshold (helium): approx. 1.0 × 10⁻⁵ atm cc/sec Response time: less than 1 second (real-time display) Recovery time: less than 1.5 seconds (rapid sensor zero calibration) Ergonomics, signalling & design Design: Ergonomic, portable handheld measuring device Visual display: Multicolour LED bar graph indicating leak intensity Audible indication: Integrated buzzer (audio frequency proportional to leak rate), can be muted Probe type: Flexible, dimensionally stable stainless steel gas probe Housing material: Impact-resistant, chemical-resistant plastic with soft-grip elements Electronics, Environment & Power Supply Power supply: Rechargeable internal nickel-metal hydride (NiMH) battery Operating time: Up to 12 hours in normal operation (can be used whilst charging) Ambient temperature: 10 to 37 degrees Celsius (50 to 98.6 degrees Fahrenheit) Humidity range: 0 to 97 per cent Energy-saving function: Automatic switch-off when not in use Intended use: Approved for indoor use only Comparable to Restek models: 22655, 22839 Warranty: 1 year Certifications & Compliance CE (EU, South Korea, Japan, Australia) CSA/UL tested (not listed) WEEE CEC China RoHS 2 UKCA Detection limits & LED colour coding Gas detection limits are measured precisely in atm cc/sec. The severity level and gas type are visually indicated by the colour of the LED: Detectable gas Minimum detection limit (atm cc/sec) Colour of the LED indicator Helium 1.0 × 10⁻⁵ Red LED Hydrogen* 1.0 × 10⁻⁵ Red LED Argon 1.0 × 10⁻⁴ Yellow LED Carbon dioxide 1.0 × 10⁻⁴ Yellow LED Nitrogen 1.4 × 10⁻³ Yellow LED *Note: When handling hydrogen, the laboratory-specific safety guidelines for flammable gases must be observed. Contents 1 x Restek electronic leak detector handheld unit (units: 1) 1 x Practical carrying and storage case 1 x universal AC mains adaptor (suitable for the USA, the UK, Europe, Australia and Japan) 1 x 6ft (approx. 1.8 m) USB charging cable Service, Maintenance & Recalibration To ensure the long-term maintenance of measurement accuracy, Restek offers a standardised service programme. If your device requires servicing, inspection or repair, please follow the official service procedure: Scope of service: The official leak detector service (item no. 22655-R or 28500-S) includes a full inspection, replacement of the internal NiMH battery (if required) and a final metrological test of the device. Procedure: Before returning the device, please send the fully completed Health and Safety form and the SRV-GC Accessories form to the manufacturer’s service department. Please do not send any devices without prior authorisation, as incomplete information may lead to significant delays. Individual Requirements & Accessories To maintain the maximum precision of your Restek leak detector, we offer a tailored range of peripheral products. To ensure comprehensive protection of the GC gas flow, we recommend installing Restek Super Clean gas filters directly in the supply line to reliably adsorb moisture and traces of oxygen. For the subsequent testing and calibration of carrier gas flows, we also stock the Restek ProFLOW 6000 electronic flow meter in our range. To ensure compliance with your internal test equipment monitoring requirements under ISO 9001, we also offer a manufacturer-certified recalibration service for the Model 28500. Make use of our technical procurement service to optimise your chromatography infrastructure in line with your specific needs.
Restek ProFLOW 6000 Electronic Flow Meter, #22656
Description: State-of-the-art features include :- Flow rate measurements for gases in the range 0.5–500 mL/min .- NIST-traceable calibration .- Ex approval (electrical equipment for areas at risk of gas explosion) for hydrogen and related gases. - Accuracy of ±2.00% of the measured flow rate or ±0.200 mL/min, whichever is greater .- Out-of-range warning indicator .- Automatic shut-off function .- Can be used as a benchtop or handheld unit .- Ergonomic design and side handles for greater comfort .- Capable of measuring most types of gas. *- Practical carrying/storage case included .- Operates on two AA batteries (included). - Data output via USB port .- One-year warranty (excluding recalibration). - Recalibration service available .- The flow meter is designed for measuring clean, dry, non-corrosive gases. Technical specifications of the flow meter: - Flow meter type: Volumetric- Batteries: 2 AA- Operating temperature range: 0–48 °C (32–120 °F) - Warranty: One-year warranty (excluding recalibration) - Certification/conformity: CE, Ex, Canadian ICES-003, WEEE, RoHS 2, China RoHS 2, UKCA Features and benefits: Flowmeters capable of measuring flammable gases are becoming increasingly important due to the growing use of hydrogen in chromatography. With its Ex rating, the Restek ProFLOW 6000 is specifically designed for explosive and flammable gases. The Restek ProFLOW 6000 is the only flow meter you need for all your chromatographic gas measurements, as it offers a wide range of functions. The ProFLOW 6000 is an electronic flow meter capable of measuring the volumetric flow rate of most gases. Real-time measurements can be taken for different flow paths and constantly changing gas types. This portable device is suitable for convenient handheld use, whilst the stand is practical for benchtop applications. Restek recommends: To ensure the most accurate flow measurements possible, you should recalibrate your ProFLOW 6000 flow meter once a year. If you do not recalibrate your instrument for an extended period, this may lead to increased errors. Before returning your Restek flow meter, please send a completed Health and Safety form and an SRV-GC Accessories form to the email address stated at the top of each form. Failure to provide all the required information may result in significant delays in processing. Once we have received both completed forms, we will send you authorisation and instructions for returning your unit; please do not return any units to Restek before you have received this authorisation. The service for the flow meter (item no. 22656-R) includes recalibration and any necessary repairs (additional charges may apply for repairs). For frequently asked questions about our ProFLOW 6000 flow meter, click here: https://www.restek.com/global/de/articles/frequently-asked-questions-proflow-6000-electronic-flowmeter/
Remaining Rxi-PAH GC capillary column, 40 m, 0.18 mm ID, 0.07 µm, #49316
Description: The Rxi-PAH GC columns have been developed by Restek using a stationary phase with a higher phenyl content, which offers unique selectivity for the separation of key polycyclic aromatic hydrocarbons (PAHs) relevant to food safety that cannot be distinguished by mass spectrometry. Even difficult priority compounds such as PAH4, as defined by the European Food Safety Authority (EFSA), can be easily separated and accurately quantified – results that cannot be achieved with conventional GC columns. The arylene modification and surface bonding of the stationary phase enhance thermal stability and robustness, enabling the routine analysis of relatively low-volatility, higher molecular weight PAHs without interference from column bleeding. The column’s excellent efficiency means it can be trimmed many times for maintenance purposes without losing critical PAH separations, including those used in environmental methods and food safety testing. Owing to its selectivity and efficiency, the Rxi-PAH column is ideally suited to the EFSA’s PAH4 analysis; the separation of chrysene/triphenylene and the resolution of all benzofluoranthenes are easily achievable. Item No.: Description 49316: Narrower internal diameter, thinner film, faster analysis, excellent separation of key PAHs, lower sample capacity 49317: 0.25 mm internal diameter, better sample capacity, highest resolution of key PAHs, longer analysis time than the 0.18 mm column, thin film enables elution of dibenzopyrenes 49318: 0.25 mm internal diameter, higher sample capacity, faster analysis time than the 60 m column, adequate resolution of key PAHs, more cost-effective column Features & Benefits: - Ideal for EFSA PAH4 analysis – separates all priority compounds: benz[a]anthracene, chrysene, benzo[b]fluoranthene and benzo[a]pyrene .- Optimal separation of chrysene from interfering PAHs, triphenylene and cyclopenta[cd]pyrene. - Complete separation of benzo[b]-, [k]-, [j]- and [a]-fluoranthene .- Thermal stability from 40 to 360 °C enables the analysis of low-volatility dibenzopyrenes. Technical Specifications: - Catalogue number: 49316- Product name: Rxi-PAH GC capillary column, 40 m, 0.18 mm ID, 0.07 µm- Stationary phase type: Rxi-PAH- df (film thickness): 0.07 µm- Inner diameter (ID): 0.18 mm- Length: 40 m- Phase: proprietary medium-polarity phase- Temperature range: 40 to 350/360 °C- Units: 1
Restek Rtx-5MS Low-Bleed GC capillary column, 30 m, 0.25 mm ID, 0.25 µm, #12623
Description: Rtx-5MS columns are coated with a 5 % diphenyl/95 % dimethylpolysiloxane phase and are tested to strict specifications for low column bleed and high inertness. They have the same polarity as the Rtx-5 columns, but exhibit lower column bleed. Rxi-5Sil MS columns are coated with a silarylene phase, which has a polarity similar to that of a 5 % diphenyl/95 % dimethylpolysiloxane phase; however, the phenyl rings in the polymer chain of the silarylene phase provide improved thermal stability and lower column bleed. The Rxi-5Sil MS column is the ideal choice for analysis according to EPA Method 8270 for semi-volatile pollutants. The slight difference in selectivity of Rxi-5Sil MS columns also improves the separation of polycyclic aromatic hydrocarbons (PAHs), such as benzo[b]- and benzo[k]-fluoranthene isomers. Features & Benefits: - General-purpose columns for pharmaceuticals, solvent contaminants, pesticides, hydrocarbons, PCB congeners (e.g. Aroclor mixtures), essential oils and semi-volatile compounds. - The column has been specifically tested for low column bleed.- Temperature range: -60 °C to 350 °C .- Equivalent to USP G27 and G36 phases .- Integra pre-columns are also available for some sizes – a pre-column and an analytical column in one, to eliminate connection problems! Technical Specifications: - Catalogue number: 12623- Product name: Rtx-5MS Low-Bleed GC Capillary Column, 30 m, 0.25 mm ID, 0.25 µm- Stationary phase type: Rtx-5ms- Similar phases: Agilent CP-Sil 8 CB, DB-5, HP-5, HP-5ms, Ultra-2 • Phenomenex ZB-5, ZB-5MS • Supelco/Millipore Sigma SPB-5 – df (film thickness): 0.25 µm – Internal diameter (ID): 0.25 mm – Length: 30 m – Phase: Low-polarity phase; cross-linked diphenyldimethylpolysiloxane – Comparable to: Agilent 19091S-433 • Scion/Bruker/Varian CP5860 – Temperature range: –60 to 330/350 °C – Units: 1
Restek LC Multi-Pesticide Standard Kit, #31971
Description: Contains one ampoule of each of the following products. 31972: LC Standard No. 1 for multi-pesticide residues – organophosphorus compounds 100 μg/mL, acetonitrile, 1 mL per vial Acephate (30560-19-1) Carbaryl (Sevin) (63-25-2) Dicrotophos (141-66-2) Dimethoate (60-51-5) Dimethomorph (110488-70-5) Isocarbophos (24353-61-5) Methamidophos (10265-92-6) Mevinphos (7786-34-7) Monocrotophos (6923-22-4) Omethoate (1113-02-6) Temephos (Abate) (3383-96-8) Trichlorfon (Dylox) (52-68-6) Vamidothion (Vamidoate) (2275-23-2) 31973: LC Standard No. 2 for multi-pesticide residues – carbamate/uron compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Alanycarb (83130-01-2) Aldicarb (116-06-3) Aldicarb sulphone (1646-88-4) Aldicarb sulfoxide (1646-87-3) Benfuracarb (82560-54-1) Butocarboxim (34681-10-2) Butoxycarboxim (34681-23-7) Ethiofencarb (29973-13-5) Furathiocarb (65907-30-4) Methabenzthiazuron (18691-97-9) Methiocarb (2032-65-7) Methomyl (16752-77-5) Oxamyl (23135-22-0) Tebuthiuron (34014-18-1) Thidiazuron (51707-55-2) Thiophanate-methyl (23564-05-8) 31974: LC Standard No. 3 for multi-pesticide residues – carbamate/uron compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Bendiocarb (22781-23-3) Bifenazate (149877-41-8) Carbofuran (1563-66-2) Chlorfluazuron (71422-67-8) Chloroxuron (1982-47-4) Chlortoluron (15545-48-9) Cycluron (2163-69-1) Diethofencarb (87130-20-9) Diflubenzuron (35367-38-5) Dioxacarb (6988-21-2) Diuron (330-54-1) Fenobucarb (BPMC) (3766-81-2) Fenoxycarb (72490-01-8) Fenuron (101-42-8) Flufenoxuron (101463-69-8) Fluometuron (2164-17-2) Forchlorfenuron (68157-60-8) Hexaflumuron (86479-06-3) 3-Hydroxycarbofuran (16655-82-6) Indoxacarb (173584-44-6) Iprovalicarb (140923-17-7) Isoprocarb (2631-40-5) Isoproturon (34123-59-6) Linuron (330-55-2) Lufenuron (103055-07-8) Metobromuron (3060-89-7) Monolinuron (1746-81-2) Neburon (555-37-3) Novaluron (116714-46-6) Pirimicarb (23103-98-2) Promecarb (2631-37-0) Propham (122-42-9) Propoxur (Baygon) (114-26-1) Pyraclostrobin (175013-18-0) Siduron (1982-49-6) Teflubenzuron (83121-18-0) Thiobencarb (28249-77-6) Triflumuron (64628-44-0) 31975: LC Standard No. 4 for multi-pesticide residues – organonitrogen compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Abamectin (71751-41-2) Acetamiprid (135410-20-7) Ametryn (834-12-8) Amitraz (33089-61-1) Azoxystrobin (131860-33-8) Benalaxyl (71626-11-4) Benzoximate (29104-30-1) Boscalid (188425-85-6) Butafenacil (134605-64-4) Carbetamide (16118-49-3) Carfentrazone ethyl (128639-02-1) Chlorantraniliprole (500008-45-7)* Clofentezine (74115-24-5) Cymoxanil (57966-95-7) Cyprodinil (121552-61-2) Cyromazine (66215-27-8) Dimoxystrobin (149961-52-4) Dinotefuran (165252-70-0) Doramectin (117704-25-3) Eprinomectin (123997-26-2) Famoxadone (131807-57-3) Fenazaquin (120928-09-8) Fenhexamid (126833-17-8) (E)-Fenpyroximate (134098-61-6) Flonicamid (158062-67-0) Fluazinam (79622-59-6)† Fludioxonil (131341-86-1) Fluoxastrobin (361377-29-9) Flutolanil (66332-96-5) Furalaxyl (57646-30-7) Halofenozide (112226-61-6) Imazalil (35554-44-0) Imidacloprid (138261-41-3) Ivermectin (70288-86-7) Kresoxim methyl (143390-89-0) Mandipropamid (374726-62-2) Mepanipyrim (110235-47-7) Mepronil (55814-41-0) Metaflumizone (139968-49-3) Metalaxyl (57837-19-1) Methoxyfenozide (161050-58-4) Moxidectin (113507-06-5) Myclobutanil (88671-89-0) Nitenpyram (120738-89-8) Oxadixyl (77732-09-3) Picoxystrobin (117428-22-5) Piperonyl butoxide (51-03-6) Prochloraz (67747-09-5) Prometon (1610-18-0) Pymetrozine (123312-89-0) Pyracarbolide (24691-76-7) Pyrimethanil (53112-28-0) Pyriproxyfen (95737-68-1) Quinoxyfen (124495-18-7) Rotenone (83-79-4) Secbumeton (26259-45-0) Spiroxamine (118134-30-8) Tebufenozide (112410-23-8) Tebufenpyrad (119168-77-3) Terbumeton (33693-04-8) Triadimefon (43121-43-3) Trifloxystrobin (141517-21-7) Zoxamide (156052-68-5) 31976: LC Standard No. 5 for multi-pesticide residues – organonitrogen compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Acibenzolar-S-methyl (135158-54-2) Bupirimate (41483-43-6) Buprofezin (69327-76-0) Carboxin (5234-68-4) Clethodim (99129-21-2) Clothianidin (210880-92-5) Cyazofamid (120116-88-3) Ethiprole (181587-01-9) Ethofumesate (26225-79-6) Fenamidone (161326-34-7) Fipronil (120068-37-3) Flubendiamide (272451-65-7) Flufenacet (Fluthiamide) (142459-58-3) Hexythiazox (78587-05-0) Mefenacet (73250-68-7) Mesotrione (104206-82-8) Methoprotryne (841-06-5) Metribuzin (21087-64-9) Prometryne (7287-19-6) Propargite (2312-35-8) Prothioconazole (178928-70-6) Pyridaben (96489-71-3) Simetryn (1014-70-6) Sulfentrazone (122836-35-5) Terbutryn (886-50-0) Thiabendazole (148-79-8) Thiacloprid (111988-49-9) Thiamethoxam (153719-23-4) Thiofanox (39196-18-4) Tricyclazole (Beam) (41814-78-2) 31977: LC Standard No. 6 for multi-pesticide residues – organonitrogen compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Baycor (bitertanol) (55179-31-2) Bromuconazole (116255-48-2) Cyproconazole (94361-06-5) Diclobutrazol (75736-33-3) Difenoconazole (119446-68-3) Diniconazole (83657-24-3) Epoxiconazole (133855-98-8) Etaconazole (60207-93-4) Ethirimol (23947-60-6) Etoxazole (153233-91-1) Fenarimol (60168-88-9) Fenbuconazole (114369-43-6) Fluquinconazole (136426-54-5) Flusilazole (85509-19-9) Flutriafol (76674-21-0) Fuberidazole (3878-19-1) Hexaconazole (79983-71-4) Ipconazole (125225-28-7) Metconazole (125116-23-6) Nuarimol (63284-71-9) Paclobutrazol (76738-62-0) Penconazole (66246-88-6) Propiconazole (Tilt) (60207-90-1) Tebuconazole (107534-96-3) Tetraconazole (112281-77-3) Triadimenol (55219-65-3) Triflumizole (68694-11-1) Triticonazole (131983-72-7) 31978: LC Standard No. 7 for multi-pesticide residues – organonitrogen compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Emamectin benzoate (155569-91-8) Fenpropimorph (67564-91-4) Spinetoram (J&L) (935545-74-7)‡ Spinosad (A&D) (168316-95-8)** Spirodiclofen (148477-71-8) Spiromesifen (283594-90-1) Spirotetramat (203313-25-1) 31979: LC Multi-pesticide Standard #8 (Hydramethylnon) Organonitrogen components 100 µg/mL, acetonitrile, 1 mL/ampoule Hydramethylnon (67485-29-4) 31980: LC Standard No. 9 for Multi-pesticide Residues: Carbamate/Uron Compounds 100 μg/mL, acetonitrile, 1 mL/ampoule Aminocarb (2032-59-9) Desmedipham (13684-56-5) Formetanate HCl (23422-53-9) Mexacarbate (Zectran) (315-18-4) Monceren (Pencycuron) (66063-05-6) Phenmedipham (13684-63-4) Propamocarb free base (24579-73-5) 31981: LC Multi-pesticide Standard #10 (Carbendazim) Carbamate/Uron components 100 µg/mL, methanol, 1 mL/ampoule Carbendazim (10605-21-7) *Reference materials containing chlorantraniliprole (500008-45-7) must be treated with ultrasound for at least 60 minutes before opening the ampoule. As each ultrasonic bath operates at a different energy level, 60 minutes is only a guideline. A longer sonication time has no effect on product quality. These precautions also apply to working solutions prepared in your laboratory. The amount of compound precipitated depends on the concentration and temperature. If you store your standards, including diluted solutions, at a temperature significantly below that recommended on the label, allow for a longer sonication time. †Note: In this standard, fluazinam should only be used for qualitative analysis. ‡This reference material contains both the Spinetoram J and L isomers (187166-40-1 and 187166-15-0); however, the certificate states CAS No. 935545-74-7, as this refers to the pure material dissolved in the solution. CAS No. 935545-74-7 is a mixture of Spinetoram J and L, and the proportion of each isomer is shown on your certificate of analysis. **This reference material contains Spinosad A and D isomers (131929-60-7 and 131929-63-0); however, the certificate states CAS No. 168316-95-8, as this refers to the pure material dissolved in the solution. CAS No. 168316-95-8 is a mixture of spinosad A and D, and the ratio of each isomer is shown on your certificate of analysis. Features and benefits: - For the precise detection and quantification of pesticides of global significance for food safety in a wide range of fruit and vegetable varieties and other products using LC-MS/MS .- The complete kit contains 204 compounds of interest and covers many of the pesticides listed by regulatory authorities that are analysed by LC; individual vials are also available separately .- Formulated and grouped for maximum long-term stability .- Quantitatively tested to confirm composition; detailed accompanying documentation is provided .- The optimised multi-component pesticide method is provided free of charge; the downloadable XLS file contains conditions and conversion tables. - Restek is your one-stop shop for first-class LC-MS/MS analysis of multi-pesticide residues: reference and internal standards, LC columns, Q-sep QuEChERS sample preparation products, accessories and more! Note: When combining a large number of compounds with different functional groups, the stability of the mixture may pose a problem. When formulating these standards, we examined the 204 compounds involved in detail and then combined them into as few mixtures as possible, whilst still ensuring the highest level of long-term stability and reliability. For quantitative analysis, we recommend analysing each mixture separately to ensure accurate results for each compound. Technical specifications: - Catalogue number: 31971- Product name: LC Multi-pesticide Standard Kit- Certified Reference Material (CRM): Yes- Minimum shelf life from date of dispatch (months): 6- Shipping conditions: on ice- Storage temperature: -20 °C or colder- Units: Kit
Remnant Straight Inlet Liner, 3.5 mm x 5.0 x 95, for Shimadzu 17A, 2010, 2014 and 2030 GCs, standard deactivation, with deactivated wool, pack of 5, #20956
Technical Specifications: - Catalogue number: 20956 - Product name: Straight inlet liner, 3.5 mm x 5.0 x 95, for Shimadzu 17A, 2010, 2014 and 2030 GCs, standard deactivation, with deactivated wool, pack of 5 - Instrument model: 17A|2010|2014|2030 – Deactivation: Standard – Instrument manufacturer: Shimadzu – Internal diameter (ID): 3.5 mm – Length: 95 mm – Liner geometry: Straight – Material: borosilicate glass – Outer diameter (OD): 5.0 mm – Liner packing material: deactivated glass wool – Compatible with: Shimadzu 220-90784-00 – Units: pack of 5 – Volume: 0.914 mL – Compatible with Restek: 20955, 20957
Remaining stock: Micro-packed GC column, Molesieve 5A, 80/100, 2 m, 1.00 mm ID, #19001
Description: Efficient, inert and flexible . Micro-packed columns are highly efficient and offer good sample capacity, making them a powerful tool for solving many challenging application problems. The unrivalled inertness of SilcoSmooth capillaries is due to Siltek deactivation, which allows the column to be bent and coiled without causing spalling or cracking of the inert surface. Easy to install. Multiple internal diameters . Our micropacked columns are suitable for packed and capillary injection systems. Micropacked columns with standard walls (1/16-inch OD) offer improved efficiency in instruments designed for packed columns without the cost of converting to capillary injection systems. Micro-packed columns with a smaller outer diameter (0.95 mm OD) can be easily fitted into a capillary injector, using slightly larger ferrules. Micro-packed columns operate at flow rates of more than 10 cc/min for trouble-free operation. Braided-wire end caps Restek’s packed column experts insert a braided wire into the column and secure it at the column outlet using a small crimp. The end caps are treated with Siltek; the sample comes into contact only with inert surfaces. Features & Benefits: - Increased efficiency compared to standard packed columns .- Higher capacity than PLOT columns .- Manufactured from inert, flexible SilcoSmooth capillaries .- Comprehensive range of packings available .- Standard coils fit all instruments. No special instrument configurations are required. Technical Specifications: - Catalogue number: 19001- Product name: Micro-packed GC column Molesieve 5A, 80/100, 2 m, 1.00 mm ID- Solid support: Molesieve 5A- Mesh: 80/100 – Internal diameter (ID): 1.00 mm – Length: 2 m – External diameter (OD): 1/16 inch – Temperature limits: up to 300 °C – Units: 1
Remnant MXT-1 GC metal capillary column, 15 m, 0.25 mm ID, 0.10 µm, #70105
Description: MXT-1 columns are characterised by a long service life and very low column bleed at high operating temperatures. A proprietary synthesis process eliminates residual catalysts that could cause decomposition and increase column bleed. Features & Benefits: - General-purpose columns for solvent contaminants, PCB congeners (e.g. Aroclor mixtures), gases, natural gas odorants, sulphur compounds, essential oils, hydrocarbons, semi-volatile substances, pesticides and oxygen compounds. - Equivalent to USP G1, G2, G9 and G38 phases .- 4.5-inch standard column diameter .- Temperature range: -60 to 430 °C* *The maximum temperature varies depending on the part number; see column-specific temperatures. Technical Specifications: - Catalogue number: 70105- Product name: MXT-1 GC metal capillary column, 15 m, 0.25 mm ID, 0.10 µm- Stationary phase type: MXT-1- Similar phases: Agilent DB-PS1 • Quadrex UAC-1, UAC-1MS- df (film thickness): 0.10 µm- Internal diameter (ID): 0.25 mm- Length: 15 m- Phase: non-polar phase; cross-linked dimethylpolysiloxane- Temperature limits: -60 to 360/430 °C- Units: 1
Remaining stock: Rxi-5Sil MS GC capillary column, 15 m, 0.25 mm ID, 0.25 µm, #134620
Description: The Rxi-5Sil MS stationary phase contains phenyl groups in the polymer backbone. This improves thermal stability, reduces column bleeding and makes the phase less susceptible to oxidation. Rxi-5Sil MS columns are ideal for GC-MS applications. Features & Benefits: - General-purpose columns – ideal for GC-MS analysis of semi-volatile compounds, polycyclic aromatic hydrocarbons, chlorinated hydrocarbons, phthalates, phenols, amines, organochlorine pesticides, organophosphorus pesticides, pharmaceuticals, solvent contaminants and hydrocarbons. - Designed as a low-bleed GC-MS column.- Excellent inertness for active compounds .- Temperature range: -60 °C to 350 °C .- Some sizes are also available as Integra pre-columns – a pre-column and an analytical column in one, to eliminate connection issues! Technical Specifications: - Catalogue number: 13620- Product name: Rxi-5Sil MS GC capillary column, 15 m, 0.25 mm ID, 0.25 µm- Stationary phase type: Rxi-5Sil MS- Similar phases: Agilent DB-5msUI • Phenomenex ZB-5MSplus • Supelco/Millipore Sigma: SLB-5ms- df (film thickness): 0.25 µm- Internal diameter (ID): 0.25 mm- Length: 15 m- Phase: low-polarity phase; Cross-linked 1,4-bis(dimethylsiloxy)phenylenedimethylpolysiloxane – Comparable to: Agilent 122-5512UI • Phenomenex 7EG-G030-11 – Temperature limits: –60 to 320/350 °C – Units: 1
Restek Force Biphenyl, 1.8 µm, 100 x 2.1 mm LC column, 9629212
Description: Force Performance LC columns are the result of more than 20 years’ experience in liquid chromatography and are characterised by their durability and reproducibility, even under the stresses of UHPLC. Their first-class quality is backed by our 100 per cent satisfaction guarantee. And perhaps most importantly: Force columns are fully scalable between 3 or 5 µm HPLC and 1.8 µm UHPLC, allowing you to easily transfer and optimise methods without extensive calculations. Use Force LC columns for all your HPLC and UHPLC instrument platforms. The innovative biphenyl phase is Restek’s most popular stationary phase, as it is particularly well suited to the separation of compounds that are difficult to dissolve or that elute early on C18 columns and other phenyl phases. Biphenyl columns are therefore extremely useful for bioanalytical testing applications such as drug and metabolite analyses, particularly those requiring a mass spectrometer (MS). Increasing the retention of early-eluting compounds can limit ionisation suppression, and the enhanced selectivity helps to avoid the need for complex mobile phases that are not well suited to MS detection. - Stationary phase category: Phenyl (L11) - Ligand type: Biphenyl- Particles: 1.8 µm, 3 µm or 5 µm fully porous silica- Pore size: 100 Å- Carbon loading: 15 %- End-capping: yes – Surface area: 300 m²/g – Recommended applications: – pH range: 2.0–8 .0 – Maximum temperature: 80 °C – Maximum pressure: 1034 bar/15,000 psi* (1.8 μm), 600 bar/8,700 psi (3 μm); 400 bar/5,800 psi (5 μm) * For maximum service life, the recommended maximum pressure for 1.8 μm particles is 830 bar/12,000 psi. Properties :- Increased retention for dipolar, unsaturated or conjugated solutes .- Improved selectivity when used with a methanolic mobile phase .- Ideal for increasing sensitivity and selectivity in LC-MS analyses. Switch to a biphenyl column :- If you notice limited selectivity on a C18 column.- If you need to increase the retention of hydrophilic aromatics. Features and benefits: - Ideal for bioanalytical testing applications such as drug and metabolite analyses .- Increased selectivity and retention for compounds that are difficult to resolve on C18 columns and other phenyl phases, or which elute early .- Limits ionisation suppression and enables simple, MS-friendly mobile phases. - Restek’s most popular stationary LC phase. Technical Specifications: - Catalogue number: 9629212- Product name: Force Biphenyl, 1.8 µm, 100 x 2.1 mm LC column- Stationary phase type: Biphenyl - Similar phases: Unique - Internal diameter (ID): 2.1 mm - Length: 100 mm - Maximum pressure: 1034 bar/15000 psi - Note: For maximum service life, the recommended maximum pressure for 1.8 µm particles is 830 bar/12,000 psi .- Particle type: Fully porous particles (FPP) - Particle size: 1.8 µm- Surface area: 300 m²/g- Maximum temperature: 80 °C- Units: 1
Residue Fragrance Allergen Standards Kit, 33105
Description: To protect consumers with allergies, the 7th Amendment to the European Cosmetics Directive stipulates that finished cosmetic products and personal care products must state whether they contain excessive amounts of any allergen from a list of 26 compounds. Of these 26 compounds, 24 are volatile chemicals that can be identified by GC-MS analysis, and Version 3 of the method described by the International Fragrance Association (IFRA) serves precisely this purpose. This specially formulated reference standard kit exceeds IFRA’s purity requirements and contains all 24 fragrance allergens defined by the EU that can be detected by GC-MS, as well as seven further potential allergens. When analysed on a Restek Rxi-17 column using the IFRA method, all the desired compounds and isomers are clearly resolved without co-elutions. This time-saving mixture is also incredibly robust and has a shelf life of over one and a half years, allowing you to keep a pre-prepared standard in stock rather than preparing a new batch for each analysis. Whether you manufacture fragrances in Europe, sell to European consumers or simply wish to test for allergens in your products, choose the reference standard mixture that helps you comply with the IFRA methodology in a practical, long-lasting formulation. This kit contains one ampoule (in methyl tert-butyl ether) of each of the following. 33100: MTBE Solvent Blank†† methyl tert-butyl ether (MTBE) (1634-04-4), neat 33101: 1-Fluoronaphthalene (Internal Standard)†† 1-fluoronaphthalene (321-38-0), 20 µg/mL 33102: Fragrance Allergen Standard A (Includes Internal Standard)†† α-amylcinnamaldehyde*† (122-40-7), 400 µg/mL cinnamal* (104-55-2), 400 µg/mL citral*† (5392-40-5), 400 µg/mL 3,7-dimethyl-7-hydroxyoctanal* (107-75-5), 400 µg/mL 1-fluoronaphthalene (321-38-0), 20 µg/mL α-hexylcinnamaldehyde*† (101-86-0), 400 µg/mL lilial* (80-54-6), 400 µg/mL lyral*† (31906-04-4), 400 µg/mL phenylacetaldehyde** (122-78-1), 400 µg/mL 33103: Fragrance Allergen Standard B (Includes Internal Standard)†† α-amylcinnamic alcohol*† (101-85-9), 400 µg/mL benzyl alcohol* (100-51-6), 400 µg/mL cinnamyl alcohol* (104-54-1), 400 µg/mL citronellol* (106-22-9), 400 µg/mL eugenol* (97-53-0), 400 µg/mL farnesol*† (4602-84-0), 400 µg/mL 1-fluoronaphthalene (321-38-0), 20 µg/mL geraniol* (106-24-1), 400 µg/mL isoeugenol* (97-54-1), 400 µg/mL linalool* (78-70-6), 400 µg/mL 4-methoxybenzyl alcohol* (105-13-5), 400 µg/mL methyl eugenol** (93-15-2), 400 µg/mL 33104: Fragrance Allergen Standard C (includes internal standard)†† 4-allylanisole** (140-67-0), 400 µg/mL benzyl benzoate* (120-51-4), 400 µg/mL benzyl cinnamate* (103-41-3), 400 µg/mL benzyl salicylate* (118-58-1), 400 µg/mL camphor** (76-22-2), 400 µg/mL 1,8-cineole** (470-82-6), 400 µg/mL coumarin* (91-64-5), 400 µg/mL 1-fluoronaphthalene (321-38-0), 20 µg/mL d-limonene* (5989-27-5), 400 µg/mL iso-α-methylionone* (127-51-5), 400 µg/mL methyl 2-nonynoate** (111-80-8), 400 µg/mL methyl 2-octynoate* (111-12-6), 400 µg/mL safrole** (94-59-7), 400 µg/mL To view and download safety data sheets (SDS) and certificates of analysis (CofA) for recently produced batches, visit www.restek.com/documentation-search and then enter the cat.# for each ampoule. *Compound listed in the 7th Amendment to the European Cosmetics Directive. **Additional potential allergens included in this formulation. †Compounds defined as two isomers resulting in two chromatographic peaks. ††Components of the Fragrance Allergen Standards Kit are not available for individual sale. Features and benefits: - For the complete separation of 31 fragrance allergens through a single analysis on an Rxi-17 column .- Ideal for GC-MS analyses according to the IFRA method .- Helps you to comply with the EU requirements set out in the European Cosmetics Directive. - All components included have a concentration of 400 ppm, allowing for dilution for calibration curves and use with various solvents.- Exceeds the purity requirements specified in the IFRA method. Technical specifications: - Catalogue number: 33105- Product name: Fragrance Allergen Standards Kit- Certified Reference Material (CRM): Yes- Maximum shelf life from date of dispatch (months): 18- Minimum shelf life from date of dispatch (months): 6- Shipping conditions: ambient temperature- Storage temperature: 0 °C or colder- Units: kit
Remaining stock of Stabilwax ® GC capillary column (30 m × 0.53 mm × 1.00 µm), 10654
The Restek Stabilwax ® is a highly stable, polar GC capillary column (phase: polyethylene glycol, PEG), which is regarded as one of the most robust WAX columns on the market. It is the ideal choice for the analysis of polar compounds where conventional WAX phases bleed rapidly or lose their stability. Maximum stability & low bleed Unlike many standard PEG columns, the Stabilwax® phase is specially cross-linked. (Feature) For procurement professionals in the analytics sector, this means significantly higher thermal stability (up to 250 °C), extremely low column bleed (Benefit) and a considerably longer service life, which reduces the cost per analysis. Ideal polarity for FAMEs, flavourings and alcohols As a polar phase, this column is perfectly suited to the separation of polar analytes. (Feature) Its main areas of application are the analysis of fatty acid methyl esters (FAMEs), the investigation of flavourings and fragrances (e.g. in foodstuffs or perfumes), the analysis of alcohols, and the determination of polar solvent residues (Benefit). Robust wide-bore column (0.53 mm ID) This specific model (MPN 10654) is a ‘wide-bore’ column with a large internal diameter of 0.53 mm. (Feature) This makes it particularly robust, user-friendly to install and capable of accommodating larger sample volumes (high sample capacity) without becoming overloaded. The thick film layer (1.00 µm) is optimised for the analysis of highly volatile compounds (Benefit). Technical details Phase: Stabilwax ® (polyethylene glycol – PEG, cross-linked) Polarity: Polar Length: 30 m Inner diameter (ID): 0.53 mm Film thickness (df): 1.00 µm Temperature range: 40 °C to 240 °C (isothermal) / 250 °C (programmed) Equivalent phases: DB-WAX, HP-20M, Carbowax 20M, CP-Wax 52 CB Contents 1x Restek Stabilwax ® GC capillary column (individually tested) 1x test chromatogram (quality certificate) Operating instructions Note: Ferrules, nuts and septa are accessories and are not included with the column. Customised requirements & procurement service Do you need advice on the appropriate column dimensions for your specific application, or are you looking for the necessary consumables such as graphite ferrules, inlet liners or septa for your GC system? Our team of experts will be happy to assist you. For columns or spare parts not listed here, please use our bespoke procurement service.
Allure Silica leftover, 5 µm, 60 A, 250 x 2.1 mm HPLC column, #9160572
Description: - Particles: 5 μm, spherical- Pore size: 60 Å- Carbon loading: n/a- End-capping: n/a- Surface area: 450 m²/g- pH range: 2.5 to 8- Maximum temperature: 80 °C Features & Benefits: High-retention phase for normal-phase separations. Type B silica packing with a very large surface area. Technical Specifications: - Catalogue number: 9160572- Product name: Allure Silica, 5 µm, 60 Å, 250 x 2.1 mm HPLC column- Stationary phase type: Silicic acid, silicon dioxide – Similar phases: Phenomenex LiChrospher Si-60 (irregularly shaped particle), Maxsil Si (irregularly shaped particle) – Internal diameter (ID): 2.1 mm – Length: 250 mm – Note: Ideal for MOSH/MOAH analyses in accordance with EN 16995. For compatibility with Axel Semrau and other automated systems, add the Level 3 Trident column protection system and the Allure Silica protection cartridge .- Particle type: Fully porous particles (FPP) - Particle size: 5 µm- Surface area: 450 m²/g- Maximum temperature: 80 °C- Units: 1
Remaining stock: Rxi-5Sil MS GC capillary column, 30 m, 0.25 mm ID, 0.25 µm, #13623
Description: The Rxi-5Sil MS stationary phase contains phenyl groups in the polymer backbone. This improves thermal stability, reduces column bleeding and makes the phase less susceptible to oxidation. Rxi-5Sil MS columns are ideal for GC-MS applications. Features & Benefits: - General-purpose columns – ideal for GC-MS analysis of semi-volatile compounds, polycyclic aromatic compounds, chlorinated hydrocarbons, phthalates, phenols, amines, organochlorine pesticides, organophosphorus pesticides, pharmaceuticals, solvent impurities and hydrocarbons. - Designed as a low-bleed GC-MS column.- Excellent inertness for active compounds .- Temperature range: -60 °C to 350 °C .- Some sizes are also available as Integra pre-columns – a pre-column and an analytical column in one, to eliminate connection issues! Technical Specifications: - Catalogue number: 13623- Product name: Rxi-5Sil MS GC capillary column, 30 m, 0.25 mm ID, 0.25 µm- Stationary phase type: Rxi-5Sil MS- Similar phases: Agilent DB-5msUI • Phenomenex ZB-5MSplus • Supelco/Millipore Sigma: SLB-5ms- df (film thickness): 0.25 µm- Internal diameter (ID): 0.25 mm- Length: 30 m- Phase: low-polarity phase; Cross-linked 1,4-bis(dimethylsiloxy)phenylenedimethylpolysiloxane – Comparable to: Agilent 122-5532UI • Phenomenex 7HG-G030-11 – Temperature limits: –60 to 320/350 °C – Units: 1
Remnant Rtx-1301 GC capillary column, 30 m, 0.53 mm ID, 3.00 µm, #16085
Description: Many analysts believe that the Rtx-1301 column features the best cyanosiloxane-bonded stationary phase on the market, as no other column manufacturer offers lower column bleed, a longer service life or better inertness. Our polymer is fully characterised to ensure long-term reproducibility, column-to-column consistency and low column bleed – even with sensitive detectors such as ECDs and MSDs. Features & Benefits: - General-purpose columns for residual solvents, alcohols, oxygenates and volatile organic compounds .- Equivalent to the USP G43 phase .- Integra pre-columns are also available for some sizes – a pre-column and an analytical column in one, to eliminate connection issues! Technical Specifications: - Catalogue number: 16085- Product name: Rtx-1301 GC capillary column, 30 m, 0.53 mm ID, 3.00 µm- Stationary phase type: Rtx-1301- Similar phases: Agilent CP-Select 624 CB, DB-1301, DB-624, DB-624UI, DB-Select 624 UI • Phenomenex ZB-624 • Quadrex 007-1301, 007-624, 007-502 • Supelco/Millipore Sigma SPB-624 – df (film thickness): 3.00 µm – inner diameter (ID): 0.53 mm – length: 30 m – phase: low- to medium-polarity phase – temperature range: –20 to 240 °C – units: 1
Remaining stock: Rxi-5ms GC capillary column, 30 m, 0.25 mm ID, 0.25 µm, #13423
Features & Benefits: - General-purpose columns suitable for phenols, residual solvents, illicit drugs, pesticides, PCB congeners (e.g. Aroclor mixtures) and solvent contaminants. - Tested and guaranteed for extremely low column bleed; improved signal-to-noise ratio for higher sensitivity and mass spectrum integrity .- Temperature range: -60 °C to 330/350 °C .- Equivalent to USP G27 and G36 phases. Technical Specifications: - Catalogue number: 13423- Product name: Rxi-5ms GC capillary column, 30 m, 0.25 mm ID, 0.25 µm- Stationary phase type: Rxi-5ms- Similar phases: Agilent HP-5msUI • Phenomenex ZB-5plus • Quadrex: 007-5MS- df (film thickness): 0.25 µm- Inner diameter (ID): 0.25 mm- Length: 30 m- Phase: Low-polarity phase; cross-linked diphenyldimethylpolysiloxane- Comparable to: Agilent 19091S-433UI • Phenomenex 7HG-G032-11 – Temperature range: –60 to 330/350 °C – Units: 1
Remaining stock: Rxi-XLB GC capillary column, 30 m, 0.25 mm ID, 0.25 µm, #13723
Description: Improvements in polymer synthesis and tubing deactivation enable us to manufacture inert, stable Rxi-XLB columns that are particularly well suited to the analysis of active, high-molecular-weight compounds using sensitive GC-MS systems, including ion trap detectors. Their outstanding efficiency, combined with inertness, low column bleed and high thermal stability, makes Rxi-XLB columns ideal for the analysis of semi-volatile compounds in drinking water. Rxi-XLB columns are excellent for the analysis of semi-volatile organic compounds according to EPA Method 525.2. An Rxi-XLB column, combined with a few simple adjustments to the injection conditions, can significantly improve the sensitivity for active target compounds and high-molecular-weight target compounds in Method 525.2. Features & Benefits: - General-purpose columns with unique selectivity. Ideal for many GC-MS applications, including pesticides, PCB congeners (e.g. Aroclor mixtures) and PAHs .- High thermal stability; exhibits extremely low bleed .- Temperature range: 30 °C to 360 °C. Technical Specifications: - Catalogue number: 13723- Product name: Rxi-XLB GC capillary column, 30 m, 0.25 mm ID, 0.25 µm- Stationary phase type: Rxi-XLB- Similar phases: Agilent DB-XLB, VF-Xms • Phenomenex MR1, ZB-XLB- df (film thickness): 0.25 µm- Internal diameter (ID): 0.25 mm- Length: 30 m- Phase: low-polarity proprietary phase- Comparable to: Agilent 122-1232 • Phenomenex 7HG-G019-11 – Temperature range: 30 to 340/360 °C – Units: 1
Remaining stock: ShinCarbon ST micro-packed GC column, 80/100, 2 m, 0.53 mm ID, #19043
Description: Analyse oxygen, nitrogen, methane, carbon monoxide and carbon dioxide using a single column at room temperature. The ShinCarbon ST material, a carbon molecular sieve with a large surface area (~1,500 m²/g), is the ideal medium for the separation of gases and highly volatile compounds using gas-solid chromatography (GSC). These columns enable rapid analysis at temperatures above ambient. The excellent thermal stability of the high-surface-area carbon, combined with careful conditioning during column manufacture, ensures operation with low column bleed and rapid stabilisation when a new column is installed. Customised ShinCarbon ST columns are available on request. ShinCarbon ST is an extremely stable material. Its upper programmed temperature limit of 300 °C minimises column bleed and baseline drift, making the material compatible with most detection systems used in gas analysis, including TCD or HID. All ShinCarbon ST columns are fully conditioned in a dry, oxygen-free environment to make your work easier. This minimises the stabilisation time (less than 30 minutes) when installing a new column, which in turn reduces your downtime. Note: The columns are supplied without column nuts and ferrules. Optional installation kits can be ordered separately. Features & Benefits: - For the separation of permanent gases, including carbon monoxide and carbon dioxide, without cryogenic cooling .- Rapid separation of permanent gas/light hydrocarbon mixtures .- Excellent compatibility with most GC detectors – minimal column bleed, minimal baseline rise. - Pre-conditioned; stabilises in less than 30 minutes .- Maximum temperature 280 °C/300 °C .- Also available: installation kits (item nos. 21065, 21066) Technical Specifications: - Catalogue number: 19043- Product name: ShinCarbon ST micropacked GC column, 80/100, 2 m, 0.53 mm ID- Solid support: ShinCarbon ST- Mesh: 80/100 – Internal diameter (ID): 0.53 mm – Length: 2 m – Material: SilcoSmooth Tubing (Siltek-coated stainless steel) – External diameter (OD): 0.74 mm – Temperature limits: up to 300 °C – Units: 1
Restek Stabilwax GC capillary column (60 m, 0.32 mm ID, 1.00 µm), 10657
The Restek Stabilwax (MPN 10657) is regarded as the de facto standard amongst polar wax columns and is characterised by its exceptional thermal stability within an otherwise sensitive class of stationary phases. Based on a cross-linked polyethylene glycol (PEG), this column utilises a proprietary polar-deactivated surface that binds the Carbowax polymer more firmly than conventional methods. The result is a ‘Crossbond’ phase that is not only mechanically robust against repeated water injections but also exhibits minimal column bleeding even under aggressive temperature programmes up to 260 °C. Phase stability and reproducibility For the chromatographer, the Stabilwax’s unique binding mechanism means one thing above all: consistent retention times. The ‘shifting’ of polar compounds often observed with wax phases is eliminated here. This makes the column the first choice for validated methods in FAME analysis, the determination of flavour compounds or the purity testing of solvents (e.g. xylene isomers), where retention time stability over weeks and months is critical. Durability and regeneration A key technical advantage of Crossbond technology is the possibility of regeneration. Should the separation performance decline due to non-volatile matrix residues, the Stabilwax can often be restored by solvent rinsing. It covers a wide range of applications, from the analysis of alcoholic beverages to critical environmental parameters such as acrolein/acrylonitrile (according to EPA 603), and offers equivalence to USP phases G14, G15, G16, G20 and G39. Technical details Phase: Stabilwax (cross-linked polyethylene glycol / PEG) Length: 60 m Inner diameter (ID): 0.32 mm Film thickness (df): 1.00 µm Temperature range: 40 °C to 250/260 °C Polarity: Polar USP equivalents: G14, G15, G16, G20, G39 Similar phases: HP-INNOWax, CP Wax 52 CB, VF-WAX MS, ZB-WAXplus Material: Fused silica (quartz glass) Contents Restek Stabilwax GC capillary column (60 m x 0.32 mm x 1.00 µm) Test chromatogram (batch-specific) Customised requirements & procurement service Are you looking for a Stabilwax-DA for the analysis of free fatty acids, or do you require Integra-Guard variants with an integrated pre-column to protect against matrix interference? Our procurement team can organise specific phase variants or custom lengths for you directly from the US factory if these are not listed in the standard catalogue.
Remnant Rxi-624Sil MS GC capillary column, 60 m, 0.25 mm ID, 1.40 µm, #13869
Features & Benefits: - Column with low bleed and high thermal stability – maximum temperatures up to 300–320 °C .- Inert – excellent peak shape for a wide range of compounds. - Selective – The G43 phase is highly selective for volatile organic compounds, terpenes and residual solvents, making it a good choice for USP<467>. - Manufactured for reproducibility from column to column – well suited to validated methods .- Temperature range: -20 °C to 320 °C. Technical Specifications: - Catalogue number: 13869- Product name: Rxi-624Sil MS GC capillary column, 60 m, 0.25 mm ID, 1.40 µm- Stationary phase type: Rxi-624Sil MS- Similar phases: Agilent VF-624ms • Phenomenex ZB-624plus • Quadrex: 007-502, 007-624, 007-608 - df (film thickness): 1.40 µm - Internal diameter (ID): 0.25 mm - Length: 60 m - Phase: Cross-linked phase of medium polarity – Comparable to: Agilent CP9103 • Phenomenex 7KG-G040-27 – Temperature range: –20 to 300/320 °C – Units: 1
Remnant Rxi-624Sil MS GC capillary column, 30 m, 0.25 mm ID, 1.40 µm, #13868
Features & Benefits: - Column with low bleed and high thermal stability – maximum temperatures up to 300–320 °C .- Inert – excellent peak shape for a wide range of compounds. - Selective – The G43 phase is highly selective for volatile organic compounds, terpenes and residual solvents, making it a good choice for USP<467>. - Manufactured for column-to-column reproducibility – well suited to validated methods .- Temperature range: -20 °C to 320 °C. Technical Specifications: - Catalogue number: 13868- Product name: Rxi-624Sil MS GC capillary column, 30 m, 0.25 mm ID, 1.40 µm- Stationary phase type: Rxi-624Sil MS- Similar phases: Agilent VF-624ms • Phenomenex ZB-624plus • Quadrex: 007-502, 007-624, 007-608 – df (film thickness): 1.40 µm – Inner diameter (ID): 0.25 mm – Length: 30 m – Phase: Cross-linked phase of medium polarity – Comparable to: Agilent CP9102 – Temperature range: –20 to 300/320 °C – Units: 1
Restek Topaz Single Taper Inlet Liner for Shimadzu GC, 3.5 mm x 5.0 mm x 95 mm, pack of 5, 23336
The Restek Topaz Single Taper Inlet Liner represents a truly premium-class gas chromatography system solution for reproducible sample injection and residue-free vapourisation in capillary gas chromatography (GC). When analysing trace components in complex sample matrices in environmental, food, pharmaceutical or forensic laboratories, the injection system is the most critical interface. Undesirable adsorption effects or thermal degradation of sensitive analytes on active surfaces must be prevented in a manner that is gentle on the material and ensures process reliability. Thanks to the groundbreaking Topaz deactivation technology, this liner offers unrivalled chemical inertness. Designed for split and splitless operation on Shimadzu gas chromatographs, this consumable guarantees the highest validity of measurement results, minimises peak tailing and maximises signal-to-noise ratios even with labile compounds. Geometric flow dynamics and sample focusing The physical design of this liner is based on a precisely calculated single-taper geometry at the lower end. This taper acts as a fluid-dynamic barrier that focuses the expanding sample vapour directly onto the head of the capillary column. This effectively blocks any transient backflow of the sample vapour mixture (backflash) towards the injection head or septum. A precisely positioned portion of high-purity quartz wool is also placed at the lower end of the liner. This quartz wool fulfils a dual function: it serves as a mechanical filter for non-volatile matrix components to protect the column, whilst simultaneously increasing the hot surface area to force the instantaneous and homogeneous evaporation of liquid droplets. Topaz Premium deactivation for uncompromising inertness The material-science cornerstone of the Restek Topaz Liner is the state-of-the-art chemical deactivation process carried out in the gas phase. In conventional glass liners, free silanol groups on the quartz glass surface can trigger irreversible adsorption or catalytic degradation reactions of analytes such as pesticides, phenols or amines. Topaz Premium deactivation completely blocks these active sites and creates a high-purity, inert passivation layer. Every production batch undergoes strict quality controls and is tested using sophisticated probe molecules. For laboratory managers and analytical specialists, this means a drastic reduction in system failures and extended maintenance intervals for GC injectors. Precise system compatibility and laboratory integration The dimensions – 3.5 mm internal diameter, 5.0 mm external diameter and 95 mm total length – are precisely matched to the geometric tolerances of Shimadzu injection systems. The liner ensures a perfect fit in split/splitless injectors and prevents leaks in the carrier gas flow. Supplied in a practical, contamination-protected pack of five, it ensures rapid availability for routine replacement as part of preventative quality management. Technical details Geometry & Materials Science Liner type: Single Taper (single taper at the lower end) Base material: High-purity borosilicate/quartz glass Deactivation: Restek Topaz Premium deactivation (maximum inertness) Packaging unit: Pack of 5 (individually protected packaging) Dimensions & Tolerances Inner diameter (ID): 3.5 mm Outer diameter (OD): 5.0 mm Total length: 95 mm Packing features & additives Matrix protection: High-purity quartz wool integrated Position of the wool: At the bottom Injection modes: Optimised for splitless and split injections Instrument system compatibility Instrument manufacturer: Shimadzu gas chromatographs (GC) Suitable for models: Shimadzu GC-17A, GC-2010, GC-2014 and GC-2030 Contents 5 x Restek Topaz Single Taper Inlet Liners with quartz wool at the lower end (MPN: 23336) 1 x Batch-specific quality certificate Individual requirements & accessories To ensure a gas-tight and leak-free installation of the liner in the Shimadzu injector, the use of high-quality sealing rings is essential and helps to protect the materials. Our chromatography range includes suitable Viton O-rings for standard applications as well as high-temperature-resistant graphite seals for demanding thermal profiles. To safeguard your sample chain, we also recommend the regular replacement of the injection septum (e.g. Restek Thermolite septa) and the use of ultra-pure carrier gas filters to permanently prevent the ingress of moisture or oxygen into the GC system. Please make use of our technical procurement service to optimally tailor your GC infrastructure.
Remaining stock: Rxi-624Sil MS GC capillary column, 30 m, 0.32 mm ID, 1.80 µm, #13870
Features & Benefits: - Column with low bleed and high thermal stability – maximum temperatures up to 300–320 °C .- Inert – excellent peak shape for a wide range of compounds. - Selective – The G43 phase is highly selective for volatile organic compounds, terpenes and residual solvents, making it a good choice for USP<467>. - Manufactured for column-to-column reproducibility – well suited to validated methods .- Temperature range: -20 °C to 320 °C. Technical Specifications: - Catalogue number: 13870- Product name: Rxi-624Sil MS GC capillary column, 30 m, 0.32 mm ID, 1.80 µm- Stationary phase type: Rxi-624Sil MS- Similar phases: Agilent VF-624ms • Phenomenex ZB-624plus • Quadrex: 007-502, 007-624, 007-608 - df (film thickness): 1.80 µm - Internal diameter (ID): 0.32 mm - Length: 30 m - Phase: Cross-linked phase of medium polarity – Comparable to: Agilent CP9104 • Phenomenex 7HM-G040-31 – Temperature range: –20 to 300/320 °C – Units: 1
Remnant Rt-Q-BOND PLOT column 30m, 0.32mm, ID, 10 µm, #19744
Description: Porous polymers are specialised stationary phases with high retention for a wide range of applications, capable of eluting both polar and non-polar compounds. They are highly hydrophobic, meaning that water has no effect on retention times and even elutes as a good chromatographic peak. Q-BOND is our strongest non-polar and most widely used porous polymer column; the polarity can be increased by incorporating functional groups (e.g. QS-, S- and U-BOND). The manufacturing process for PLOT columns with porous polymer results in the particles being strongly bonded to the capillary walls, meaning that virtually no particles are released. The result is reproducible performance from column to column, including selectivity and flow rate. Re-wrapping the PLOT columns is not recommended, as this may cause particles to detach from the capillary wall. Features & Benefits: - Non-polar PLOT column containing 100% divinylbenzene.- Ideally suited for the analysis of C1 to C3 hydrocarbons, as well as isomers and alkanes up to C10 .- High retention of CO₂ simplifies gas analysis; CO₂ and methane are separated from O₂/N₂/CO. (Note: O₂/N₂/CO are not separated at ambient temperature.) - Suitable for the analysis of oxygen-containing compounds and solvents .- Maximum temperature of 300 °C .- A cross-reference list for GC column phases is also available. Technical Specifications: - Catalogue number: 19744- Product name: Rt-Q-BOND PLOT column 30 m, 0.32 mm, ID, 10 µm- Stationary phase type: Rt-Q-BOND- Similar phases: Agilent HP-PLOT Q, PoraBOND Q, PoraPLOT Q, PoraPLOT Q Ultimetal • Quadrex PLT-Q • Supelco/Millipore Sigma Supel-Q-PLOT – df (film thickness): 10 µm – Inner diameter (ID): 0.32 mm – Length: 30 m – Phase: 100% divinylbenzene – Temperature limits: –60 to 280/300 °C – Units: 1