GC/ECD Peak Pattern Analysis with GPC Pretreatment for Determination of PCBs in Transformer Oil

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  • OHMURA Naoya
    Central Research Institute of Electric Power Industry, Environmental Science Research Laboratory
  • GLASS Thomas R.
    Central Research Institute of Electric Power Industry, Environmental Science Research Laboratory
  • SASAKI Kazuhiro
    Central Research Institute of Electric Power Industry, Environmental Science Research Laboratory
  • JOH Takashi
    Electric Power Engineering Systems Co., Ltd.
  • ITOH Yumiko
    Sumika Chemical Analysis Service, LTD., Ehime Laboratory

Bibliographic Information

Other Title
  • ゲル浸透クロマトグラフィー前処理法と電子捕獲型検出器付きガスクロマトグラフ分析ピークパターン解析法による絶縁油中のポリ塩化ビフェニルの定量
  • ゲル シントウ クロマトグラフィー マエ ショリ ホウ ト デンシ ホカクガタ ケンシュツキ ツキ ガスクロマトグラフ ブンセキ ピークパターン カイセキホウ ニ ヨル ゼツエンユチュウ ノ ポリ エンカ ビフェニル ノ テイリョウ

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Abstract

A new peak pattern analysis on GPC/GC/ECD allowing estimation of the total PCB concentration and the Kanechlor composition for transformer oil is described. The oil is treated with a diatomite column containing fuming sulfuric acid, followed by a connected column of silica gel. After elution the sample is further treated by gel permeation chromatography (GPC) and the collected fraction is analyzed by GC/ECD. An algorithm is described to fit the measured GC/ECD peak pattern with a combination of four peak patterns corresponding to the four Kanechlor mixtures, resulting in the total PCB concentration and a predictive proportion of Kanechlors in the sample. Measurements of 19 transformer oil samples using both GPC/GC/ECD and HRGC/HRMS showed a good correlation over the range of 0.2 mg/kg to 2.4 mg/kg total PCBs.<br>

Journal

  • BUNSEKI KAGAKU

    BUNSEKI KAGAKU 55 (5), 317-321, 2006

    The Japan Society for Analytical Chemistry

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