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使用高效液相色谱法测定葡萄中8种氨基甲酸酯农药(涕灭威亚砜、涕灭威砜、涕灭威、灭多威、克百威、3-羟基克百威、速灭威和仲丁威)的残留量。样品前处理采用乙腈提取、氨基柱净化,C18色谱柱分离、高效液相色谱仪-柱后衍生-FLD检测器分析检测,结果表明:8种氨基甲酸酯农药在30 min内得到良好的分离,线性相关系数r2为0.999 75~0.999 93,检测限达2.5~7.1μg/kg,当添加水平为0.5 mg/kg时,回收率范围为82.0%~101.2%。该方法快速灵敏,操作简单且效果显著。
Determination of 8 Carbamate Pesticides in Grape (aldicarb, aldicarb, aldicarb, methomyl, carbofuran, 3-hydroxypropyl carbamate, And sec-butyl Ding Wei) residue. The samples were pretreated with acetonitrile, purified with ammonia column, separated on a C18 column and analyzed by high performance liquid chromatography with post-column derivatization-FLD detector. The results showed that eight kinds of carbamate pesticides were well separated within 30 min , The linear correlation coefficient r2 was 0.999 75 ~ 0.999 93, and the detection limit was 2.5 ~ 7.1 μg / kg. The recovery ranged from 82.0% to 101.2% at the level of 0.5 mg / kg. The method is fast and sensitive, easy to operate and effective.