Observation of atmospheric oxygen/nitrogen ratio aboard a cargo ship using gas chromatography/thermal conductivity detector

2012 ◽  
Vol 117 (D4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Hiroaki Yamagishi ◽  
Yasunori Tohjima ◽  
Hitoshi Mukai ◽  
Yukihiro Nojiri ◽  
Chihiro Miyazaki ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Gas Chromatography ◽  
Atmospheric Oxygen ◽  
Thermal Conductivity Detector ◽  
Nitrogen Ratio

Analysis of Xenon Response by Micro-Thermal Conductivity Detector for Gas Chromatography

2012 ◽  
Vol 40 (7) ◽  
pp. 1130-1134 ◽  
Author(s):  
Shu-Jiang LIU ◽  
Zhan-Ying CHEN ◽  
Yin-Zhong CHANG ◽  
Shi-Lian WANG ◽  
Qi LI ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Gas Chromatography ◽  
Thermal Conductivity Detector

scholarly journals Experiments with a cyclic closed-loop gas chromatograph

1984 ◽  
Vol 62 (11) ◽  
pp. 2260-2263
Author(s):  
Roberta Back ◽  
R. A. Back
Keyword(s):  
Thermal Conductivity ◽  
Gas Chromatography ◽  
Closed Loop ◽  
Thermal Conductivity Detector ◽  
Gas Chromatograph ◽  
Peak Broadening ◽  
Equivalent Length ◽  
Length Separation ◽  
Carrier Gases ◽  
Better Than

A cyclic closed-loop gas chromatrograph, comprising a column, a thermal conductivity detector, and a peristaltic circulating pump, together with valves for sample pick-up and carrier gas admission, is described. Injected samples could be recycled many times, providing very long effective column lengths, and separations were markedly better than on a single-pass column of equivalent length. Separation of two components, and peak broadening with single components, were measured over many successive cycles for a variety of samples, carrier gases, and conditions. The use of the cyclic chromatograph for testing columns and for studying basic processes in gas chromatography is demonstrated and discussed.

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