Abstract
This paper describes an emission spectroscopic method using micro-glow corona to analyze minute volume gases. Glow corona is stable and very small plasma generated at an apex of needle electrode at atmospheric pressure; however, it has never been applied to material decomposition and analysis. To investigate the discharge and spectroscopic characteristics of the glow corona, a sample gas was stepwisely blown toward the micro-glow corona through a glass capillary located in the vicinity of the electrode. We investigated the effect of the gas with various conditions on the discharge current and emission spectra.
