An improved gas chromatography for rapid measurement of CO2, CH4 and N2O

Combining improved injector, gas line and valve-driving modules, a GC equipped with FID and ECD, could simultaneously measure CH4, CO2 and N2O in an air sample within 4 min. Test results showed that the system has high sensitivity, resolution and precision; the linear response range of the system me...

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Veröffentlicht in:	Journal of environmental sciences (China) 2006, Vol.18 (1), p.162-169
Hauptverfasser:	Wang, Ying-Hong, Wang, Yue-Si, Sun, Yang, Xu, Zhong-Jun, Liu, Guang-Ren
Format:	Artikel
Sprache:	eng
Schlagworte:	Calibration Carbon Dioxide - analysis Chromatography, Gas - methods Chromatography, Gas - standards Limit of Detection Methane - analysis Nitrogen Oxides - analysis 全球变暖大气环境温室气体生态环境生态系统
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Beschreibung
Zusammenfassung:	Combining improved injector, gas line and valve-driving modules, a GC equipped with FID and ECD, could simultaneously measure CH4, CO2 and N2O in an air sample within 4 min. Test results showed that the system has high sensitivity, resolution and precision; the linear response range of the system meets the requirement of in situ flux measurements. Thus, the system is suitable for monitoring fluxes of main greenhouse gases in terrestrial ecosystem since it is easy to use, efficacious, stable and reliable to collect data.
ISSN:	1001-0742 1878-7320
DOI:	10.3321/j.issn:1001-0742.2006.01.030