QuEChERS-GC/ECD法分析土壤和沉积物中残留有机氯农药和多氯联苯  

Analysis of Residual Organochlorine Pesticides and Polychlorobiphenyls in Soils and Sediments by QuEChERS Coupled with GC/ECD

作　　者：蔡小虎[1] 蔡述伟[1] 时磊[1] 沈小明[1] 

机构地区：[1]南京地质矿产研究所,江苏南京210016

出　　处：《环境监控与预警》2016年第3期14-17,共4页Environmental Monitoring and Forewarning

基　　金：国土资源地质大调查基金资助项目(12120113014800)

摘　　要：建立了用快速、简单、廉价、有效、可靠及安全（QuEChERS）的方法净化、GC／ECD法测定沉积物中有机氯农药和多氯联苯的分析方法。目标化合物质量浓度在1．0～100μg/L范围内线性良好，相关系数均〉0．999，检出限为0．08～0．17μg/L。以沉积物标准样品SRM1944为研究对象，用QuEChERS方法和传统方法进行提取比较，并用沉积物样品进行验证，回收率为87．8％～100．3％。方法快速、简单、可靠、安全。A quick,easy,cheap,effective,rugged and safe( Qu ECh ERS) clean-up procedure was established to determine organochlorine pesticides and polychlorobiphenyls in soils and sediments by GC / ECD. The results showed that the calibration curves were linear in the ranges of 1. 0 ~ 100 μg / L for target compounds,with correlation coefficients larger than 0. 999. The limits of detection were 0. 08 ~ 0. 17 μg / L. The certified reference material of sediment( SRM1944) was chosen as the subject investigated.Qu ECh ERS method was compared with traditional methods,and verified with sediments samples. The recovery ranges were 87. 8%~ 100. 3%. This method was demonstrated to be quick,easy,rugged and safe.

关 键 词：QUE ChERS 土壤 沉积物 有机氯农药 多氯联苯 

分 类 号：O657.7[理学—分析化学]