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

概要

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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 0.2mg/kg to 2.4mg/kg total PCBs.
社団法人日本分析化学会の論文
2006-05-05