CRCU

Chemical Research in Chinese Universities ›› 2012, Vol. 28 ›› Issue (5): 814-817 .

• Articles • Previous Articles     Next Articles

Determination of Xenon in Air by a Pulse-discharge Helium Ionization Detector

CHEN Zhan-ying1, CHANG Yin-zhong1, LIU Shu-jiang1, ZHANG Hai-tao2, WANG Shi-lian1, LI Qi1   

  1. 1. CTBT Beijing National Data Centre & Beijing Radionuclide Laboratory, Beijing 100085, P. R. China;
    2. Northwest Institute of Nuclear Technology, Xi’an 710024, P. R. China
  • Received:2011-11-03 Revised:2011-12-20 Online:2012-09-25 Published:2012-09-07

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Abstract: A pulse-discharge helium ionization detector(Valco, PD-D3-I) was used to measure xenon concentration in air. The dependences of the detector relative response on various gas chromatograph parameters were investigated. Based on the well prepared gas connections for the detector system and optimized gas chromatography(GC) working conditions, the atmospheric xenon concentration could be measured by the cheap GC method with a detection level of 0.7?0-9(parts by volume). Moreover, the xenon concentration in the ground level air around our laboratory was measured with the result of 0.085?0-6(parts by volume) and RSD of 0.91%.

Key words: Pulse-discharge helium ionization detector, Xenon, Gas chromatography(GC), Air analysis