色谱2012，Vol.30Issue(3)：318-326,9.DOI:10.3724/SP.J.1123.2011.11010
固相萃取-气相色谱-质谱联用同时测定河水和海水中87种农药
Simultaneous determination of 87 pesticides in river water and seawater using solid phase extraction-gas chromatography-mass spectrometry
摘要
Abstract
A method for the simultaneous determination of 87 commonly used pesticides in China including 24 organophosphorous pesticides, 15 organochlorine pesticides, 12 azoles, 9 pyre-throids, 7 amides and anilines, 5 carbamates and other 15 pesticides in river water and seawater was established using solid phase extraction (SPE) -gas chromatography-mass spectrometry (GC-MS). GC-MS parameters influencing separation and sensitivity were optimized, and the effects of sample volume, pH and salinity on SPE were investigated. The purification was performed using NH2 SPE cartridge. An internal standard and 5 surrogates were used for data analysis and quality control. The results indicated that under the optimized conditions the limits of detection were in the range of 0. 1 - 6. 6 ng/L. For most target pesticides, recoveries were between 60% and 120% with relative standard deviations (RSDs, n=4) of 0.01% -9.7% at the spiked levels of 5 ng/L and 20 ng/L in real river water and sea water matrices. The method was successfully applied to monitor multi-class pesticides in surface water in Fujian Jiulong estuary, and 20 pesticides including 5 organophosphorous pesticides, 3 amides, 4 azoles, 3 carbamates, 2 pyrethroids and 3 other pesticides were detected in the mass concentration range of 1. 18 -660. 93 ng/L. The proposed method can meet the requirement for the determination of trace pesticide residues in water samples.关键词
固相萃取/气相色谱-质谱/农药/河水/海水/多残留分析/复合污染Key words
solid phase extraction (SPE) / gas chromatography-mass spectrometry (GC-MS)/ pesticides/ river water/ seawater/ multi-residue analysis/ combined pollution分类
化学化工引用本文复制引用
宋伟,林姗姗,孙广大,陈猛,袁东星..固相萃取-气相色谱-质谱联用同时测定河水和海水中87种农药[J].色谱,2012,30(3):318-326,9.基金项目
厦门市重大科技平台项目(3502Z20091005). （3502Z20091005）
