气相色谱内标法测定水中百菌清的方法优化  

Method optimization of determination of chlorothalonil in water by internal standard gas chromatography

作　　者：陈蓓蓓[1] 吴诗剑[1,2] 周守毅[1] 张欢燕[1] 王臻[1] 

机构地区：[1]上海市环境监测中心,上海200030 [2]上海交通大学环境科学与工程学院,上海200240

出　　处：《环境科学导刊》2009年第4期101-104,共4页Environmental Science Survey

摘　　要：介绍了具有电子捕获检测器的气相色谱仪,用内标法在毛细色谱柱上测定百菌清的试验方法。通过内标物的比较得出,四氯间二甲苯是内标法测定百菌清的理想内标物。此方法精密度可达到RSD=0.32%,平均回收率可达到97.8%,方法检出限0.133μg/L,各项指标均优于现行国标方法GB/T5750.9-2006(9)。The methods of determination of chlorothalonil using capillary column and ECD by internal standard gas chromatography are introduced. Tetrachloro -m -sylene is chosen as the proper internal standard in quantification of chlorothalonil by ISTD method. Analysis performance is improved with the method precision of RSD of 0. 32% and recovery rate of 97.8% and MDL of 0. 133μg/L, which is better than those of current standard GB/T5750. 9 -2006 （9）

关 键 词：百菌清 气相色谱法 内标法 毛细管柱 

分 类 号：X83[环境科学与工程—环境工程]