环境工程-开题报告

【关键词】 川芎

　　摘要：目的考察9种药材中氯氰菊酯、氰戊菊酯的残留量。方法利用气相色谱(GCECD)分析方法测定药材中除虫菊酯类农药的残留量。结果川芎等8种药材中除虫菊酯类农药的残留量较低，低于相关农药的含量标准。结论测定结果表明该法操作简便，分离效果好，符合农药残留分析要求。

　　关键词：药材； 除虫菊酯类农药残留； 气相色谱法

　　Determination of the Residues of Cypermethrin and Fenvalerate in Nine Medical Materials

　　Abstract：ObjectiveTo determine the residues of cypermethrin and fenvalerate in nine medical materials. MethodsThe contents of residue of cypermethrin and fenvalerate were determined by gas chromatography. ResultsThe contents of residue in eight medical materials were very low，which is fit for relative standard of residue of pesticides. ConclusionThis method has easy operation, high sensitivity and selectivity.

　　Key words：Medical material; Pyrethroid pesticides residue; GCECD

　　中药材及其制剂的农药残留问题近年来逐渐引起人们的重视，中药材在栽培过程中，需施用化学农药以防止病虫害的侵蚀，由此引起了药材的农药污染问题，尽快建立中药中农药残留量的检测方法及限量标准，对保证人们用药安全具有积极的意义。拟除虫菊酯类农药是一类具有良好杀虫效果的广谱性农药，在药材种植中被广泛应用，然而它存在一定的异构体，这就导致了建立其残留测定方法的困难性。尽