GC-ECD检测水体中微量右旋反式氯丙炔菊酯方法研究  

Study on GC-ECD method for the determination of microamounts of D-trans chloropralethrin in water

作　　者：何钰 龚会琴 谭正莹 包娜 廖朝选 HE Yu;GONG Huiqin;TAN Zhengying;BAO na;LIAO Chaoxuan(Guizhou Academy of Testing and Analysis,Guiyang 550014,China)

机构地区：[1]贵州省分析测试研究院,贵阳550014

出　　处：《世界农药》2023年第5期27-30,共4页World Pesticide

基　　金：猫跳河中一种磺酰脲类除草剂分布特征与风险评估(黔科院J字[2021]45号);流域水环境质量安全的农药监测、预警、应急技术研究与示范(黔科合支撑[2021]一般464);猫跳河中内分泌干扰物壬基酚的分布特征及风险评估研究(黔科院J字[2023]19号)。

摘　　要：利用配备电子俘获检测器(ECD)气相色谱仪,建立水体中微量右旋反式氯丙炔菊酯的检测方法。采用气相色谱方法,以氮气为载气,基于DB-1填料毛细管柱和ECD检测器,外标法定量分析水体中微量右旋反式氯丙炔菊酯,线性相关系数0.9999,变异系数1.16%,低浓度和高浓度水平回收率分别为87.65%和95.69%。所建立的方法操作简便,灵敏度高,准确度、精密度满足要求,可用于微量右旋反式氯丙炔菊酯定量检测。To establish a method for the determination of trace amounts of D-trans chloroprotethrin in water using a gas chromatograph equipped with an electron capture detector(ECD).Using nitrogen as carrier gas,a capillary column packed with DB-1 and an ECD detector,a gas chromatographic method was used for the determination of D-trans chloroprotethrin in the sample,and the external standard method was used for quantification.The result showed that the linear correlation coefficient of D-trans chloroprotethrin was 0.9999,the variation coefficient was 1.16%.The average recoveries at the low and high concentration levels were 87.65%and 95.69%,respectively.The method was simple,accurate,precision and sensitivity,which could be use for quantitative determination of trace D-trans chloropralethrin.

关 键 词：右旋反式氯丙炔菊酯 水体 GC-ECD 

分 类 号：TQ450.7[化学工程—农药化工]