引用本文:蔡小虎,蔡述伟,时磊,沈小明.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[J].环境监控与预警,2016,8(3):14-17
CAI Xiao hu, CAI Shu wei, SHI Lei, SHEN Xiao ming.Analysis of Residual Organochlorine Pesticides and Polychlorobiphenyls in Soils and Sediments by QuEChERS Coupled with GC / ECD[J].Environmental Monitoring and Forewarning,2016,8(3):14-17
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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
蔡小虎,蔡述伟,时磊,沈小明
南京地质矿产研究所,江苏 南京 210016
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〖JP2〗和多氯联苯的分析方法。目标化合物质量浓度在1.0~100 μg/L范围内线性良好,相关系数均>0.999,检出限为0.08~0.17μg/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。
关键词:  QuEChERS  土壤  沉积物  有机氯农药  多氯联苯
DOI:
分类号:O657.7
基金项目:国土资源地质大调查基金资助项目(12120113014800)
Analysis of Residual Organochlorine Pesticides and Polychlorobiphenyls in Soils and Sediments by QuEChERS Coupled with GC / ECD
CAI Xiaohu, CAI Shuwei, SHI Lei, SHEN Xiaoming
Nanjing Research Institute of Geology and Mineral Resources, Nanjing, Jiangsu 210016, China
Abstract:
A quick, easy, cheap, effective, rugged and safe (QuEChERS) 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. QuEChERS 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.
Key words:  QuEChERS  Soil  Sediment  Organochlorine pesticides  Polychlorobiphenyls