摘要
采用二氯甲烷溶剂萃取，弗罗里硅土和无水硫酸钠层析柱净化，选择离子-气相色谱-质谱（SIM-GC-MS）联用检测水中16种有机磷和氨基甲酸脂类农药残留量。结果表明，农药混标在0．01～1．0μg／mL的浓度范围内线性良好，在0．2、0．05μg／mL两个水平添加回收率分别为85．1％～112．5％和78．2％～118．3％，相对标准偏差分别为4．3％～10．7％和3．5％～9．7％。本方法快速、灵敏、准确、可靠，可用于中多种农药残留的同时检测。
To make a simultaneous determination of 16 organophosphorous and carbamates pesticide residues in water. The pesticide residues were extracted from water with dichloromethane, cleaned up with a column filled with Florisil and anhydrousdisodium sulfate, and analyzed with gas chromatography - mass spectrometry. The results presented the excellent linearity between analytical signal and analyte concentration in the range of 0.01 - 1.0 μg/mL ; The recoveries obtained from samples spiked with standards at the concentration levels of 0.2 μg/mL and 0.05 μg/ mL were in the ranges of 85.1% ～ 112.5 % and 78.2 % ～ 118.3 %, respectively, with relative standard deviations of 4.3 %～10.7% and 3.5 % ～ 9.7 % , respectively. The method is rapid, sensitive, accurate and reliable, it can be used for simultaneous determination of pesticide residues in water.
出处
《南昌大学学报（理科版）》
CAS
北大核心
2007年第5期459-462,共4页
Journal of Nanchang University(Natural Science)
基金
长江学者和创新团队发展计划资助(IRT0540)
江西省自然科学基金资助项目(0420039)
南昌大学食品科学教育部重点实验室开放基金资助项目(NCU200408)
关键词
水样
有机磷
氨基甲酸酯
残留测定
气相色谱-质谱
water
organophosphorous pesticide
carbamates pesticide
residues determination
GC - MS
