Simultaneous Determination of Volatile Halogenated Organic Compounds in Brackish Water and Seawater by Purge and Trap-Gas Chromatography/Mass Spectrometry

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  • Karasawa Hiroki
    Department of Chemistry, College of Humanities & Sciences, Nihon University
  • Kimura Masae
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
  • Wakuda Chiharu
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
  • Kurihara Michiko K.
    Department of Chemistry, College of Humanities & Sciences, Nihon University
  • Tsujino Kanenori
    Hamamatsu North High-School
  • Tani Yukinori
    Graduate School of Nutritional and Environmental Sciences, University of Shizuoka
  • Hashimoto Shinya
    Department of Chemistry, College of Humanities & Sciences, Nihon University

Bibliographic Information

Other Title
  • パージ・アンド・トラップ‐ガスクロマトグラフィー／質量分析法による揮発性有機ハロゲン化合物の同時分析法の検討と汽水・海水試料への適用
  • パージ・アンド・トラップ-ガスクロマトグラフィー/質量分析法による揮発性有機ハロゲン化合物の同時分析法の検討と汽水・海水試料への適用
  • パージ アンド トラップ ガス クロマトグラフィー シツリョウ ブンセキホウ ニ ヨル キハツセイ ユウキ ハロゲン カゴウブツ ノ ドウジ ブンセキホウ ノ ケントウ ト キスイ カイスイ シリョウ エ ノ テキヨウ

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Abstract

Simultaneous determination method for 12 volatile halogenated organic compounds (VHOCs) in brackish water and seawater has been developed, based on purge and trap-gas chromatography/mass spectrometry. The limits of detection for VHOCs were <0.04 pmol L−1 for bromomethane, iodoethane and tribromomethane, <0.13 pmol L−1 for bromochloromethane, chloroiodomethane, chlorodibromomethane and bromoiodomethane, <0.21 pmol L−1 for chloromethane, dibromomethane, bromodichloromethane, and diiodomethane and 0.67 pmol L−1 for iodomethane. Good linearities of the calibration curves for 12 VHOCs were obtained in the concentration range up to100 pmol L−1. The correlation coefficients were >0.997 for bromochloromethane, chlorodibromomethane, bromodichloromethane, bromoiodomethane and tribromomethane, >0.981 for chloromethane, iodomethane, iodoethane, chloroiodomethane and diiodomethane, 0.967 for dibromomethane and 0.923 for bromomethane. Using this developed method, the concentrations of VHOCs in brackish water, coastal seawater and open ocean seawater were measured. The coefficients of variation were approximately <20% in all samples. Thus, this simultaneous highly sensitive analysis method was valuable for determination of trace levels of VHOCs concentrations in natural water.

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 59 (12), 1149-1154, 2010

    The Japan Society for Analytical Chemistry

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