Restek Rxi-5ms GC Capillary Column, 30 m, 0.25 mm ID, 0.25 µm, 13423
€751.00
% Manufacturer's RRP: €834.00 9% below manufacturer's RRP
- Crosslinked diphenyl dimethyl polysiloxane, low polarity
- 30 m, 0.25 mm ID, 0.25 µm film thickness
- Extremely low column bleed, improved signal-to-noise ratio
- Up to 330 °C isothermal and 350 °C programmed
- For pesticides, residual solvents, phenols and drugs of abuse
Product information "Restek Rxi-5ms GC Capillary Column, 30 m, 0.25 mm ID, 0.25 µm, 13423"
The Rxi-5ms is the Rxi version of the 5-phase: a crosslinked diphenyl dimethyl polysiloxane of low polarity on fused silica. Length 30 m, inner diameter 0.25 mm, film thickness 0.25 µm. The column is tested for extremely low column bleed, and the signal-to-noise ratio is improved.
USP phase and temperature
The USP designations are G27 and G36. The temperature limits are -60 °C to 330 °C isothermal and 350 °C programmed.
Rxi-5ms, Rtx-5ms or Rxi-5Sil MS
The shop offers several 5-phases with the same dimensions. The Rtx-5ms is a 5 % diphenyl/95 % dimethyl polysiloxane phase with the same temperature limits as the Rxi-5ms. The Rxi-5Sil MS is a silarylene phase with phenyl groups in the polymer backbone, and its isothermal limit is somewhat lower at 320 °C, while programmed it is 350 °C as with the Rxi-5ms. There is also the Rtx-5 with 0.32 mm ID and 1.00 µm film thickness.
| Column | Phase | Dimensions and temperature |
|---|---|---|
| Rxi-5ms (this page) | Diphenyl dimethyl polysiloxane | 30 m, 0.25 mm ID, 0.25 µm, -60 to 330/350 °C |
| Rtx-5ms | 5 % diphenyl, 95 % dimethyl polysiloxane | 30 m, 0.25 mm ID, 0.25 µm, -60 to 330/350 °C |
| Rxi-5Sil MS | Silarylene phase, phenyl groups in the polymer backbone | 30 m, 0.25 mm ID, 0.25 µm, -60 to 320/350 °C |
| Rtx-5 | Diphenyl dimethyl polysiloxane | 30 m, 0.32 mm ID, 1.00 µm, -60 to 325/350 °C |
Equivalents at a glance
Anyone switching from another brand will find the phase under the following designations:
| Manufacturer | Comparable phases | Comparable column part number |
|---|---|---|
| Agilent | HP-5msUI | 19091S-433UI |
| Phenomenex | ZB-5plus | 7HG-G032-11 |
| Quadrex | 007-5MS |
Selection by application list
Phenols, residual solvents and drugs of abuse are on the list for the Rxi-5ms. The Rxi-5Sil MS also names phthalates, amines, organochlorine and organophosphorus pesticides, pharmaceuticals and polycyclic aromatic compounds, and is designed for GC-MS of semivolatiles. Phenols and solvent impurities are listed for both columns.
Dimensions at a glance
The Rxi-5ms is 30 m long, with an inner diameter of 0.25 mm and a film thickness of 0.25 µm. The Rtx-5ms and Rxi-5Sil MS share these dimensions. The Rtx-5ms has the same temperature limits, while the Rxi-5Sil MS is 10 °C lower isothermally at 320 °C.
Typical applications
- General-purpose column for phenols
- Residual solvents
- Drugs of abuse
- Pesticides
- PCB congeners, for example Aroclor mixtures
- Solvent impurities
To clarify the terms: residual solvents are solvent residues in products. PCB congeners are the individual polychlorinated biphenyls, and Aroclor is the trade name of technical PCB mixtures.
Technical details
| Manufacturer | Restek |
| Phase | Rxi-5ms |
| Phase type | Low polarity, crosslinked diphenyl dimethyl polysiloxane |
| Polarity | Non-polar |
| USP phase | G27, G36 |
| Length | 30 m |
| Inner diameter | 0.25 mm |
| Film thickness | 0.25 µm |
| Column material | Fused silica |
| Temperature range | -60 °C to 330 °C isothermal, 350 °C programmed |
| Packaging unit | 1 piece |
| UNSPSC | 41115710 |
| Part number | 13423 |
Scope of delivery
The scope of delivery is one capillary column.
Individual requirements and procurement service
Restek offers the Rxi-5ms in several dimensions. If you need a different one, tell us the length, inner diameter and film thickness or the Restek part number. LT procures on request, as it does other phases, liners and accessories from the Restek catalogue. Quantity and delivery address help with the quote. Matching Restek liners and reference standards can be ordered in the same request.