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KMID : 1059519960400040235
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Journal of the Korean Chemical Society
1996 Volume.40 No. 4 p.235 ~ p.242
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Characteristics of Low-Power Microwave Induced Plasma Emission Spectrum and Detection of CO2
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Noh Seung-Man
Park Chang-Joon
Kim Young-Sang
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Abstract
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A surfatron-type microwave induced plasma (MIP) cavity has been constructed, which can be easily interfaced with a gas chromatograph. Various plasma gases such as He, Ar and N2 were used to generate the MIP and small amounts of CO2 gases were injected through the MIP to obtain characteristic spectrum of each plasma gas and to study feasibility of the MIP as a soft ionization source. Since He and Ar plasmas have high metastable state energy, it was not possible to detect sample gas in molecular state. With N2 plasma, however, a strong emission of molecular ions could be detected owing to its low metastable state energy.
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KEYWORD
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