Dietary Assessment of Esfenvalerate with Chiral Aspects in Crop Residues

摘要：

Esfenvalerate, a 2S, alpha-S isomer of fenvalerate ( RS )-alpha-cyano-3-phenoxybenzyl CRS)-2-(4-chlorophenyl)-3-methylbutyrate , is a broad-spectrum pyrethroid insecticide for many crops and widely used in the world. Technical grade of esfenvalerate, enriched with the 2S, alpha-S isomer, also contains three other stereoisomers. In the past field trials, residues of esfenvalerate have been obtained as sum of four isomers, which is equivalent to fenvalerate. Although enantiomerization at either chiral centers has been demonstrated rarely to proceed through plant metabolism studies using radiolabels, no information are available on the behavior of esfenvalerate and its isomers in the field.

关键词： dietary assessment esfenvalerate stereoisomer crop residues

作者: Naoko Nagasawa Mark H.Peatman

作者单位: Environmental Health Science Laboratory, Sumitomo Chemical Co. , Ltd. Residue Chemistry and Human Risk Assessment,JSC International Limited, Harrogate, United Kingdom

会议类型: 国际会议

会议名称: Proceedings of 4th Internatioanl Symposium on Pesticides and Environmental Safety & 5th Pan Pacific Conference on Pesticide Science & 8th International Workshop on Crop Protection Chemistry and Regulatory Harmonization (四届农药与环境安全会)

会议地点: 北京

会议语种:英文

页码: 100-101

在线出版日期: 2012-09-15（万方平台首次上网日期，不代表论文的发表时间）