Analyte pre-concentrator for gas chromatography

Details Analyte pre-concentrator for gas chromatography Analyte pre-concentrator for gas chromatography

2007-12-25

2007-12-25

Greene, Jason M. (Department: 1724)

Gas separation: processes

Chromatography

C095S087000, C095S089000, C096S104000, C096S105000, C096S132000, C096S133000, C096S143000, C096S146000, C096S153000, C073S023350, C073S023410

Reexamination Certificate

active

11233162

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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