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Restek-Carbowax GC
Carbowax® is a widely used polar stationary phase for gas chromatography. The phase is based on polyethylene glycol and is partially available as bulk material. Carbowax® phases are available as capillary columns as well as packed GC columns using different substrates (e.g. Chromosorb W HP or Carbopack B). For the capillary columns Carbowax® 20M and HP-20M, the stationary phase is not bonded or cross-linked, so solvent rinsing is not recommended. The columns are suitable for the analysis of alcohols, free acids, ethers, glycol and solvents.
Technical Data
| Column-Name | Phase | Polarity | USP | ID | Film thickness | Tmax[1] |
| Carbowax® 20M | Polyethylene Glycol | Polar | G16 | 0.25 mm
| 0.25 µm
| 220°C‒240°C |
| Carbowax® HP-20M | Polyethylene Glycol | Polar | G16 | 0.20 mm
| 0.10 µm
| 220°C |
| Carbowax® Amine | Base modified Polyethylene Glycol | Polar | N/A | 0.53 mm | 1.0 µm | 200°C |
[1] Dependent on film thickness and whether you work at constant temperature or with a gradient
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