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1前言氯氰菊酯属于拟除虫菊酯类农药,其使用量和销售量在拟除虫菊酯农药中位居前列。近年来,随着我国对外贸易的发展,国内农药生产厂家氯氰菊酯的出口量也不断增长。氯氰菊酯涉及毒性危险性,因此出口运输必须按照联合国运输的相关法律法规来严格监管。氯氰菊酯的分子中含有三个手性碳原子,因此氯氰菊酯存在着8种光学异构体。这8种不同的光学异构体生物活性差异很大,有4种为杀虫活性高效体,另外4种为无效体或低效体。8种光学异
1 Introduction Cypermethrin is a pyrethroid pesticide, its use and sales of pyrethroid pesticides in the forefront. In recent years, with the development of China’s foreign trade, the export volume of cypermethrin from domestic pesticide manufacturers has also been on the rise. Cypermethrin involves a toxicological hazard and therefore export controls must be strictly regulated in accordance with the relevant United Nations regulations on transport. Cypermethrin molecules contain three chiral carbon atoms, cypermethrin there are eight kinds of optical isomers. The biological activities of these eight different optical isomers vary greatly, with four kinds being highly efficient pesticides and the other four being ineffective or inefficient. 8 kinds of optical different