✦ LIBER ✦

Cold trapping of volatile organic compounds on fused silica capillary columns

✍ Scribed by Pankow, J. F.

Publisher: John Wiley and Sons
Year: 1983
Tongue: English
Weight: 640 KB
Volume: 6
Category: Article
ISSN: 0935-6304
DOI: 10.1002/jhrc.1240060602

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✦ Synopsis

A 30 m, 0.25 mm ID, fused silica capillary column at temperatures from -60 to -1 OOOC has been shown to be a quantitative trap for organic compounds with volatilities ranging from that of 1 ,I -dichloroethene to that of chlorobenzene.Thistypeof "whole column cryotrapping" provided sharp peaks (peak width approximately 4-7 seconds) for all compounds at a trapping temperature of -8OOC and with high carrier gas pressures and linear velocities (30 psi and 110 cm/s, respectively). Whole column cryotrapping possesses great simplicity, chromatographic efficiency (no trapping loop connections), and a built-in indicator of quality assurance for trapping efficiency (i.e., peak shape). These advantages are extremely attractive and are indicative of the fact that the potential of this approach has not yet been fully appreciated.

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