| 摘要 |
<p>A gas chromatography system comprises a gas chromatography column having an inlet and outlet, detector means for analyzing sample components, said detector means having a detection chamber connected to the column outlet, and means for selectively alternately filling said detection chamber with carrier gas for a baseline measurement and with effluent from said column outlet for a sample measurement, said means for selectively alternately filling said detection chamber comprising a gas chamber connected to said detection chamber, means for supplying carrier gas to said gas chamber, and means for selectively heating gas in said gas chamber to cause carrier gas from said gas chamber to fill said detection chamber and thereafter cooling gas in said gas chamber to withdraw gas in said detector chamber into said gas chamber so as to draw effluent from said column outlet to fill said detection chamber for a sample measurement.</p> |
