分析测试学报2013，Vol.32Issue(1)：89-93,5.DOI:10.3969/j.issn.1004-4957.2013.01.014
水中苯氧羧酸类除草剂的液相色谱-串联质谱测定方法研究
Determination of Eight Phenoxy Acid Herbicide Residues in Water by Ultra Performance Liquid Chromatography-Tandem Mass Spectrometry
摘要
Abstract
The analysis of pesticides in water samples is a problem of primary concern to quality control laboratories due to the toxicity level of these compounds and their public health risk. A method for the analysis of eight phenoxy acid herbicide residues in water was developed using solid phase extraction (SPE) combined with ultra performance liquid chromatography -tandem mass spectrometry ( UPLC - MS/MS). The water samples were extracted and cleaned with HLB SPE column. The extract was separated on a BEH C18 column using acetonitrile -2 mmol/L aqueous ammonium acetate as mobile phase with a linear gradient elution program, and analyzed by MS under negative ion mode with multiple reaction monitoring(MRM) mode. The calibration curves of eight phenoxy acid herbicides were linear in the concentration range of 0. 8 - 100 μg/L, with correlation coefficients of 0. 995 8-0. 999 6. The spiked recoveries ranged from 74% to 90% , with relative standard deviations of 1.0% -12.0%. The detection limits (3S) were between 1.0 ng/L and 1.8 ng/L. The method was simple, rapid, sensitive and accurate, and was suitable for the simultaneous determination of eight phenoxy acid herbicides in surface water and waste water.关键词
苯氧羧酸类除草剂/超高效液相色谱串联质谱/固相萃取/水体Key words
phenoxy acid herbicides/ UPLC - MS/MS/ SPE/ water分类
化学化工引用本文复制引用
张蓓蓓,章勇,赵永刚,胡冠九,陈素兰..水中苯氧羧酸类除草剂的液相色谱-串联质谱测定方法研究[J].分析测试学报,2013,32(1):89-93,5.基金项目
2009年度国家环境保护标准制修订项目(929) （929）
江苏省2008年环境监测科研基金项目计划(0821) （0821）
