Restek Carbowax GC - High-Performance GC Columns for Precise Analyses

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.

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Technical Data

Column-Name	Phase	Polarity	USP	ID	Film thickness	T_max^[1]
Carbowax^® 20M	Polyethylene Glycol	Polar	G16	0.25 mm 0.32 mm	0.25 µm 0.25 µm	220°C‒240°C
Carbowax^® HP-20M	Polyethylene Glycol	Polar	G16	0.20 mm 0.32 mm 0.53 mm	0.10 µm 0.30 µm 1.33 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

Restek-Carbowax GC

Technical Data