Analyte pre-concentrator for gas chromatography
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United States of America Patent
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Nov 9, 2004
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N/A
app pub date -
Jul 22, 2003
filing date -
Jul 24, 2002
priority date (Note) -
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Abstract
An analyte pre-concentrator for gas chromatography is disclosed generally comprising a tube having a restricted outlet and packed with an adsorbent, wherein the tube serves as the liner of a chromatographic injector, as an adsorbent trap coupled to a chromatographic column, and/or as an adsorbent trap coupled to a headspace sampler. Preferably, a heating device allows the tube to be heated. In a preferred embodiment, the analyte pre-concentrator further comprises a column isolating accessory so that a chromatographic column can be temporarily isolated from substances flowing through the tube.
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