Analysis of Organochlorine Pesticides in Fish and Shellfish using Supercritical Fluid Extraction

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  • UNO Seiichi
    National Research Institute of Fisheries and Environment of Inland Sea Mitsubishi Chemical Safety Institute
  • KOYAMA Jiro
    Faculty of Fisheries, Kagoshima University
  • TANAKA Hiroyuki
    National Research Institute of Fisheries and Environment of Inland Sea
  • YAMADA Hisashi
    National Research Institute of Fisheries and Environment of Inland Sea
  • SHIRAISHI Hiroaki
    National Institute for Environmental Studies

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  • 超臨界抽出法を用いた魚介類中の有機塩素系農薬の分析
  • チョウリンカイ チュウシュツホウ オ モチイタ ギョカイルイ チュウ ノ ユウキ エンソケイ ノウヤク ノ ブンセキ

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Abstract

Supercritical fluid extraction (SFE) was optimized for the application to the extraction of several organochlorine pesticides in aquatic biological samples. SFE required 2 ml/min for supercritical fluid carbon dioxide flow rate, 0.70 g/ml for density (50 °C for temperature and 151 bar for pressure), and 7 % methanol for modifier. The extraction was completed for 40 min. After SFE, it was possible to be analyzed with GC/MS after clean-up with Florisil, packed in Pasteur pipette. From the comparison with ultrasonic extraction and SFE to mussels which were exposed to organochlorine pesticides, SFE seems to be applicable for the analysis of these pesticides in aquatic biological samples.

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