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  • P-ISSN 1225-0163
  • E-ISSN 2288-8985

Study on the Plasma Oscillation for Gas Chromatographic detector

Analytical Science and Technology / Analytical Science and Technology, (P)1225-0163; (E)2288-8985
1993, v.6 no.4, pp.369-374
Kim, Hyo Jin
Mang, Dae Young
Kang, Jong Seong
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Abstract

Plasma oscillation has been observed during the development of the glow discharge as detector for gas chromatography. The variation of oscillation frequency shows the better stability and detection limits than the changes in the dischange curent. To investigate the range of useful operating conditions and to gain insight into the mechanism, the effect of experimental parameters on plasma oscillation have been studied. This study includes the variation of discharge current, pressure and discharge gap. Frequency ranges of 10KHz to 10MHz have been observed with the various shapes of oscillation. Two kinds of mode for oscillation are observed with the variation of electrode gap at low pressure and low voltage.

keywords
Plasma osillation, Glow discharge, GC detector


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