基于QuEChERS提取法优化的液相色谱-串联质谱法测定水中多种除草剂  

Determination of Herbicides from Water Samples Using a QuEChERS Extraction Procedure and LC-MS/MS

作　　者：张艳[1,2] 潘静娴[2] ZHANG Yan;PAN Jing-xian(Datong Coal Mine Group Limited Liability Company Subsidiary of Water,Datong,Shanxi 037003,China;College of Life&Environmental Science,Shanghai Normal University,Shanghai 200234,China)

机构地区：[1]大同煤矿集团有限责任公司供水分公司,山西大同037003 [2]上海师范大学,生命与环境学院,上海200234

出　　处：《环境监测管理与技术》2018年第2期46-49,共4页The Administration and Technique of Environmental Monitoring

基　　金：上海市教委植物种质资源创新平台基金资助项目(B-6010-11-001)

摘　　要：基于Qu ECh ERS提取方法,用液相色谱-串联质谱法测定水中14种常见除草剂,通过优化样品前处理条件,使14种除草剂在0.005 mg/L^0.500 mg/L范围内线性良好,相关系数均>0.99,方法检出限为0.005 mg/L。空白水样3个质量浓度水平的加标回收率为74.5%~109%,5次测定结果的RSD为3.9%~11.4%。将该方法用于测定长江流域3个重点城市的水体,结果为未检出。A multiresidue analyses method for the rapid determination of 14 herbicide residues in water samples was developed by using QuEChERS extraction and high performance liquid chromatograph tandem mass spectrometry(LC-MS/MS).In the optimized QuEChERS conditions,the method had good linearity in the range of 0.005 mg/L^0.500 mg/L,with the correlation coefficient greater than 0.99.The lowest detection concentrations were all 0.005 mg/L.The spiked recoveries of blank samples were in the range of 74.5%~109%,and the relative standard deviation ranged from 3.9%to 11.4%.The results showed that the method was rapid,accurate and sensitive for the determination of 14 herbicide residues in water samples.

关 键 词：除草剂 快速简便提取法 液相色谱-串联质谱法 水质 

分 类 号：O657.63[理学—分析化学]