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Pressure effects on relative retention in capillary gas-liquid chromatography

✍ Scribed by Victor G. Berezkin; Alexander A. Korolev; Irina V. Malyukova

Publisher: John Wiley and Sons
Year: 1996
Tongue: English
Weight: 692 KB
Volume: 8
Category: Article
ISSN: 1040-7685
DOI: 10.1002/(sici)1520-667x(1996)8:6<389::aid-mcs3>3.0.co;2-y

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✦ Synopsis

The dependence of retention values (capacity factor, relative retention, Kovats' retention index) of some organic compounds (different chemical classes) on average column pressure has been experimentally studied for three carrier gases (hydrogen, nitrogen, and carbon dioxide). Linear equations for the relative retention dependence on average pressure were theoretically deduced. The equations obtained conformed well to the experiment. Even at low pressures (2-5 atm), carrier gas pressure influence on relative retention values is usually greater than experimental error.

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