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8364746 
Journal Article 
市販魚介類中 S-421 濃度 
Watanabe, M; Noguchi, M; Hashimoto, T; Yoshida, S 
2021 
1 
Shokuhin Eiseigaku Zasshi / Journal of the Food Hygienic Society of Japan
ISSN: 0015-6426
EISSN: 1882-1006 
Food Hygienic Society of Japan 
59 
1 
51-54 
Japanese 
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. © 2021 Food Hygienic Society of Japan. All rights reserved. 
Contamination; Fish and shellfish; Octachlorodipropyl ether(S-421); Organochlorine insecticide