Thermal conductivity detector and gas chromatograph
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United States of America Patent
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Apr 30, 2019
Grant Date -
Mar 8, 2018
app pub date -
Aug 1, 2017
filing date -
Sep 8, 2016
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Abstract
Detection sensitivity of a single-filament thermal conductivity detector is to be increased. A thermal conductivity detector is a single-filament thermal conductivity detector, and includes a measurement cell, a phase switching mechanism, and a measurement section. The measurement section starts measurement of thermal conductivity of a sample gas after a lapse of a sample gas measurement start time that is set in advance, after a reference phase is switched to a sample phase by the phase switching mechanism, and starts measurement of thermal conductivity of a reference gas after a lapse of a reference gas measurement start time that is set in advance as a length of time different from the sample gas measurement start time, after the sample phase is switched to the reference phase by the phase switching mechanism.
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