研究了C18基质固相分散萃取(MSPDE),高效液相色谱-柱后衍生-荧光检测器测定小麦中6种氨基甲酸酯农药的方法.通过对色谱条件、基质固相分散材料的选择及其与样品的比例、洗脱条件以及加标回收率进行试验,建立和优化了小麦中6种氨基甲酸酯农药的MSPDE-HPLC-FLD多残留分析方法.结果显示,该方法对小麦样品中6种氨基甲酸酯农药的回收率为82.1%～94.0%,变异系数≤3.54%,方法的最低检出限为0.009 2～0.038 mg/kg.研究证明,基质固相分散萃取-液相色谱-柱后衍生方法简便、快速、准确、灵敏、节省样品和有机溶剂,可满足小麦中多种氨基甲酸酯农药残留同时检测的需要.%We studied a method for determining 6 kinds of carbamate pesticides in wheat using C18 matrix solid-phase dispersion extraction (MSPDE), high performance liquid chromatography, post-column derivation technique and fluorescence detector. Through the tests of the chromatographic conditions, the selection of matrix solid-phase dispersion material and the ratio of matrix solid-phase dispersion to the sample, the elution conditions and the standard recovery, we established and optimized the MSPDE-HPLC-FLD multi-residue analysis method for determining 6 kinds of carbamate pesticides in wheat. The results showed that the yield of the 6 kinds of carbamate pesticides in wheat reached 82.1％ to 94.0 ％, the coefficient of variation was equal to or less than 3.54 ％, and the lowest detection limit was 0.009 2 to 0.038 0 mg/kg. It is testified that the method is simple, rapid, accurate, sensitive, and saving of samples and organic solvent, and can meet the requirement for simultaneously determining multiple kinds of carbamate pesticides in wheat.
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