A water trap for static cryo‐headspace gas chromatography
作者:
Bruno Kolb,
Gerhard Zwick,
Maria Auer,
期刊:
Journal of High Resolution Chromatography
(WILEY Available online 1996)
卷期:
Volume 19,
issue 1
页码: 37-42
ISSN:0935-6304
年代: 1996
DOI:10.1002/jhrc.1240190107
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractThe headspace gas in static headspace gas chromatography contains mostly saturated water vapor. In the case of the cryofocusing enrichment technique this may cause baseline distortion in the early part of the chromatogram or may even lead to ice‐plugging of the capillary column. A water‐trap is described in which the water vapor is removed from the headspace gas before entering the cryo‐trap. The water trap is packed with lithium chloride on a porous support and is regenerated after each analysis by heating under backflush conditions. It therefore can be used for automatic operation. Data are given for the precision and accuracy, and some practical examples, for environmental and flavor analysis are
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