Determination of S-421 in Commercial Fish and Shellfish

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  • WATANABE Misaki
    Food Science and Nutrition Major, Graduate School of Human Environmental Sciences, Mukogawa Women's University
  • NOGUCHI Mikako
    Food Science and Nutrition Major, Graduate School of Human Environmental Sciences, Mukogawa Women's University
  • HASHIMOTO Tamiko
    Department of Food Science and Nutrition, Faculty of Human Environmental Sciences, Mukogawa Women's University
  • YOSHIDA Seisaku
    Department of Food Science and Nutrition, Faculty of Human Environmental Sciences, Mukogawa Women's University

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  • 市販魚介類中S-421濃度
  • シハン ギョカイルイ チュウ S-421 ノウド

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Abstract

<p>S-421 is a synergist of pyrethroid and organophosphorus pesticides, which are used as termiticides or household insecticides. S-421 is stable and ubiquitous in the environment. Here we describe the concentrations of S-421 in domestic and imported commercial fish collected from 2009 to 2016. Samples were extracted with acetone/hexane and S-421 was purified on a silica gel column. Quantitative analysis was performed by GC-ECD. S-421 was detected in 78 of 116 samples of domestic fish and shellfish at levels of <0.2 to 2.6 ng/g (mean: 0.4 ng/g), and in 69 of 102 imported samples at a level of <0.2 to 1.5 ng/g (mean: 0.4 ng/g). The concentrations of S-421 in fish were lower than those of p,p′-DDE and similar to those of β-HCH.</p>

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