Development of Sniffing Atmospheric Pressure Penning Ionization

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The atmospheric pressure Penning ionization was applied to the analysis of atmospheric-pressure ambient gaseous samples. The metastable rare gas atoms (Rg*) were produced by a negative-mode corona discharge of reagent rare gas (Rg). The rare gas containing Rg* in the discharge cell flowed out into the ion source cell through a nozzle with an inner diameter of 1 mm as a jet stream. The jet stream acts as a gas-jet pump and the pressure of the ion source cell becomes somewhat lower than the atmospheric pressure. The sample gas at ambient atmospheric pressure was sucked into the reduced-pressure ion source cell through the stainless steel tube (10 cm in length, 1 mm in diameter). The sample gases introduced in the ion source cell are ionized by Penning ionization. This technique was found to be applicable to various gaseous samples such as aromatic compounds, oxygen- and nitrogen-containing compounds, <i>etc.</i> However, no ion signal could be detected for aliphatic hydrocarbons. This may be due to the much smaller ionization cross sections for these compounds than N<sub>2</sub> and O<sub>2</sub> molecules which are introduced into the ion source together with sample gases.

収録刊行物

  • 質量分析 = Mass spectroscopy

    質量分析 = Mass spectroscopy 54(6), 227-233, 2006-12-01

    The Mass Spectrometry Society of Japan

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各種コード

  • NII論文ID(NAID)
    10018403866
  • NII書誌ID(NCID)
    AN0010555X
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    13408097
  • NDL 記事登録ID
    8599712
  • NDL 雑誌分類
    ZP4(科学技術--化学・化学工業--分析化学)
  • NDL 請求記号
    Z17-213
  • データ提供元
    CJP書誌  NDL  J-STAGE 
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