Restek Rtx-5 GC Capillary Column, 30 m, 0.32 mm ID, 1.00 µm, 10254
€708.00
% Manufacturer's RRP: €786.00 9% below manufacturer's RRP
- Crosslinked diphenyl dimethyl polysiloxane, low polarity
- 30 m long, 0.32 mm ID, 1.00 µm film thickness
- Temperature range -60 °C to 325 °C isothermal, 350 °C programmed
- USP phases G27 and G36
- General-purpose column, for pesticides, PCB congeners and semivolatiles, among others
Product information "Restek Rtx-5 GC Capillary Column, 30 m, 0.32 mm ID, 1.00 µm, 10254"
The Rtx-5 is a general-purpose capillary column with crosslinked diphenyl dimethyl polysiloxane as the stationary phase, low polarity, coated onto fused silica. This version is 30 m long, has an inner diameter of 0.32 mm and a film thickness of 1.00 µm. With 0.32 mm ID and 1.00 µm film it differs from the 0.25 mm columns of the Rtx-5ms and Rxi-5ms.
Phase and polymer quality
During manufacture, all catalyst residues and low-molecular-weight fragments are removed from the polymer. What remains is a narrow, monomodal molecular weight distribution, and column bleed is extremely low. The phase carries the USP designations G27 and G36. Comparable phases from other manufacturers include Agilent DB-5 and HP-5, as well as Agilent CP-Sil 8 CB, Phenomenex ZB-5, Quadrex 007-5 and Supelco Equity-5. Comparable column part numbers are Agilent 123-5033 and 19091J-213 as well as Phenomenex 7HM-G002-22.
Temperature range
The column can be used from -60 °C to 325 °C isothermal and up to 350 °C in a temperature program. The first temperature value applies to isothermal operation, the second to temperature programs. The Rtx-5ms and Rxi-5ms in the shop can be used up to 330 °C isothermal, but have 0.25 mm ID and 0.25 µm film thickness.
Selection guide 5-phase
The three columns compared, with values from the respective product data.
| Column | Phase | Dimensions and temperature |
|---|---|---|
| Rtx-5 (this page) | Diphenyl dimethyl polysiloxane | 30 m, 0.32 mm ID, 1.00 µm, -60 to 325/350 °C |
| Rtx-5ms | 5 % diphenyl, 95 % dimethyl polysiloxane | 30 m, 0.25 mm ID, 0.25 µm, -60 to 330/350 °C |
| Rxi-5ms | Diphenyl dimethyl polysiloxane | 30 m, 0.25 mm ID, 0.25 µm, -60 to 330/350 °C |
Dimensions
When choosing an equivalent column, the three dimensions matter alongside the phase: 30 m length, 0.32 mm inner diameter and 1.00 µm film thickness. For some sizes the Rtx-5 is also available as an Integra-Guard version with a built-in guard column.
Typical applications
The Rtx-5 is designed as a general-purpose column, for pharmaceuticals among other uses. Other fields of use are solvent impurities, pesticides, hydrocarbons, PCB congeners (for example Aroclor mixtures), essential oils and semivolatiles.
To clarify the terms: PCB congeners are the individual polychlorinated biphenyls, and Aroclor is the trade name of technical PCB mixtures. Semivolatiles (SVOCs) are compounds with a higher boiling point than the classic volatile organic compounds.
Technical details
| Manufacturer | Restek |
| Phase | Rtx-5 |
| Phase type | Low polarity, crosslinked diphenyl dimethyl polysiloxane |
| Polarity | Non-polar |
| USP phase | G27, G36 |
| Length | 30 m |
| Inner diameter | 0.32 mm |
| Film thickness | 1.00 µm |
| Column material | Fused silica |
| Temperature range | -60 °C to 325 °C isothermal, 350 °C programmed |
| Packaging unit | 1 piece |
| UNSPSC | 41115710 |
| Part number | 10254 |
Scope of delivery
One capillary column, single piece.
Individual requirements and procurement service
Restek offers the Rtx-5 in further lengths, inner diameters and film thicknesses, plus many other phases and accessories such as liners and reference standards. LT procures them on request, including by Restek part number. For matching an existing method, phase, length, inner diameter and film thickness are what count. These four details are enough for a request.