Issue 12, 2002

Selectivity differences between sol-gel coated and immobilized liquid film open-tubular columns for gas chromatography

Abstract

The solvation parameter model is used to determine the system constants for two sol-gel coated open-tubular columns at five equally spaced temperatures in the range 60–140 °C. Differences in the system constants as a function of temperature are used to determine the affect of sol-gel structure on the selectivity of SolGel-1™ and SolGel-Wax™ columns compared with conventionally coated and immobilized poly(dimethylsiloxane) and poly(ethylene glycol) stationary phases. The sol-gel columns should be suitable for similar separations to those presently performed on conventional immobilized liquid film columns of the same type but selectivity differences for polar compounds, which depend on temperature, should be anticipated.

Article information

Article type
Paper
Submitted
19 Sep 2002
Accepted
18 Oct 2002
First published
31 Oct 2002

Analyst, 2002,127, 1608-1613

Selectivity differences between sol-gel coated and immobilized liquid film open-tubular columns for gas chromatography

W. Kiridena, C. F. Poole and W. W. Koziol, Analyst, 2002, 127, 1608 DOI: 10.1039/B209205K

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