Cryogen-Free Automated Gas Chromatograph System for Monitoring of Halocarbons in the Atmosphere at Background Concentration Levels

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抄録

An automated gas chromatograph/electron capture detector (GC/ECD) system is developed for the monitoring of major seven halocarbons in the atmosphere (CCl2F2: CFC-12, CCl3F: CFC-11, CCl2FCClF2: CFC-113, CH3CCl3, CCl4, CHCl=CCl2, and CCl2=CCl2) at the tropospheric background concentration levels. By using two columns in series for each of two groups divided by the volatility of the compounds, the system requires neither cryogen for preconcentration nor any physical/chemical dryer for water removing. A sample amount of ca.18 ml STP is sufficient to detect these species, and analysis of sub-ambient atmospheric-pressure sample in a canister is also possible. Monitoring of these halo-carbon concentrations was carried out at 90-min intervals in the urban area.

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 14(5), 917-923, 1998-10-10 

    社団法人 日本分析化学会

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各種コード

  • NII論文ID(NAID)
    10002417230
  • 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
    4576988
  • 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  NDL  J-STAGE 
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