蔬菜中百菌清残留量的高效液相色谱测定方法

Determination of chlorothalonil residues in vegetables by high performance liquid chromatography

目的:建立高效液相色谱测定蔬菜中百菌清农药的残留量的方法。方法:通过各种条件实验,对方法的各参数进行了优化。结果:方法的最低检测浓度为0.015 mg/kg,标准曲线的线性相关系数(r)为0.9998,加标回收率为90.1%～93.8%,相对标准偏差(RSD)为1.85%～2.57%,并将其应用于实际蔬菜样品中的检测。结论:该方法准确,可靠,适用,具有实际应用意义。

Objective：To study the method of determination of ehlorothalonil residues in vegetables. Methods：The parameters in this method were optimized by experimenting. Results：The detection limit of this method was 0. 015 mg/kg and their recovery rate was 90. 1% -93.8% ,the RSD was 1.85% -2. 57% ,and the correlation coefficients was 0. 9998. This method was applied in the determination of actual samples. Conclusion：The operation of this method is simple and quick. The method can be absolutely applied in the determination of ehlorothalonil in vegetables.