Supercritical fluid extraction‐capillary gas chromatography: On‐line coupling with a programmed temperature vaporizer
Author(s) -
Houben Robert J.,
Janssen HansGerd M.,
Leclercq Piet A.,
Rijks Jacques A.,
Cramers Carel A.
Publication year - 1990
Publication title -
journal of high resolution chromatography
Language(s) - English
Resource type - Journals
eISSN - 1521-4168
pISSN - 0935-6304
DOI - 10.1002/jhrc.1240131003
Subject(s) - vaporizer , injector , chromatography , chemistry , supercritical fluid extraction , gas chromatography , supercritical fluid chromatography , extraction (chemistry) , capillary action , analytical chemistry (journal) , packed bed , materials science , thermodynamics , physics , medicine , pathology , composite material
A simple and versatile system is described for the on‐line coupling of SFE to capillary GC. The interfacing consists of a programmed temperature vaporizer (PTV) injector. With this injector it is possible to combine solute trapping, elimination of a high flow of extraction fluid, and quantitative transfer of solutes to the seperation column. The problems caused by impurities in the extraction fluid in on‐line SFE‐GC are discussed. Simple methods are described for the purification of commercially available carbon dioxide. The trapping efficiency of the PTV injector is studied. Applications of the SFE‐PTV‐GC system are given for the analysis of polymer anti‐degradants, polar compounds, and samples with environmental relevance.
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