Real-time Monitoring of Monochlorinated Benzene and Polychlorinated Biphenyls in the Gas Phase with On-line Detection : High Chemical Selectivity of Resonance-Enhanced Two-Photon Ionization

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The development of molecular spectroscopy has enabled us to select chlorinated aromatic hydrocarbons very rapidly. In particular, the laser ionization TOFMS (time-of-flight mass spectrometry) method is expected to be useful as an on-line, selective, and sensitive method. In the present work, real-time laser ionization TOFMS measurements were carried out on gaseous chlorinated aromatic hydrocarbons. The laser ionization method used resonance-enhanced two-photon ionization with the direct introduction of gas into the vacuum chamber. This method for analyzing aromatic hydrocarbons was developed using a pulsed supersonic molecular beam method. In the context of developing a highly selective and sensitive method, excitation of monochlorinated benzene at <i>λ</i> = 263.07 nm was found to be effective in the wavelength region from 263 nm to 265 nm. Also the excitation of polychlorinated biphenyls at <i>λ</i> = 266 nm was found to be substantially more effective than at <i>λ</i> = 280, 300 or 320 nm. The achievable sensitivity for real-time (1 min) measurements using the laser ionization TOFMS technique was found to be in the ppbV range.

収録刊行物

  • Analytical sciences : the international journal of the Japan Society for Analytical Chemistry

    Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 22(4), 603-606, 2006-04-10

    The Japan Society for Analytical Chemistry

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  • Rapid Analysis of Polychlorinated Biphenyls in the Gas Phase with Resonance-enhanced Two-photon Ionization: Optimal Injection of Ions into the Ion-trap Storage/Time-of-flight Mass Spectrometer

    Dobashi Shinsaku , Kira Masaharu , Tanaka Ryuichiro , IZAWA Yoshinori , DEGUCHI Yoshihiro , KUBOTA Takahiro , WADA Akihide , HARA Michikazu

    Analytical Sciences 21(9), 1111-1115, 2005

    J-STAGE DOI 被引用文献2件

被引用文献:  2件中 1-2件 を表示

各種コード

  • NII論文ID(NAID)
    10018124020
  • NII書誌ID(NCID)
    AA10500785
  • 本文言語コード
    ENG
  • 資料種別
    ART
  • ISSN
    09106340
  • NDL 記事登録ID
    7872062
  • 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
    Z54-F482
  • データ提供元
    CJP書誌  CJP引用  NDL  J-STAGE 
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