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目的:建立固相膜萃取-高效液相色谱法测定饮用水中灭多威、涕灭威、速灭威、残灭威、呋喃丹、甲萘威、抗杀虫威、异丙威、硫双威、仲丁威、猛杀威、杀虫威等12种氨基甲酸酯类农药残留量的方法。方法:水样经C18固相萃取膜真空抽滤,滤膜用乙酸乙酯洗脱,洗脱液经氮吹、甲醇溶解,高效液相色谱法测定。结果:12种氨基甲酸酯类农药的线性范围为0.05 mg/L～25.0 mg/L,线性相关系数大于0.999,检出限为0.31 mg/L～1.25 mg/L,水样中氨基甲酸酯类农残最低检测浓度范围为0.005 mg/L～0.019 mg/L,加标回收率为59.3%～97.3%,RSD<7.5%。结论:本方法样品前处理方便、快捷,有机试剂用量少。
OBJECTIVE: To establish a solid-phase membrane extraction-high performance liquid chromatographic method for the determination of methomyl, aldicarb, metoclopramide, carbofuran, carbofuran, carbaryl, Shuangwei, Zhong Ding Wei, Meng kill Granville, insecticide Granville 12 kinds of carbamate pesticide residues. Methods: The water sample was vacuum filtered through C18 solid phase extraction membrane and the filter was eluted with ethyl acetate. The eluent was determined by nitrogen blowing, methanol dissolving and high performance liquid chromatography. Results: The linear range of the 12 carbamates was 0.05 mg / L ~ 25.0 mg / L, the linear correlation coefficient was greater than 0.999, and the limit of detection was 0.31 mg / L ~ 1.25 mg / L. The carbamates The lowest detection limit of pesticide residue ranged from 0.005 mg / L to 0.019 mg / L, and the spiked recoveries ranged from 59.3% to 97.3% with RSD <7.5%. Conclusion: The method of sample pretreatment convenient, fast, less organic reagents.