气相色谱-质谱联用测定水果和蔬菜中哒螨灵残留量

Determination of the Residues of Pyridaben in Fruits and Vegetables by GC-MS

建立气相色谱-质谱联用测定水果和蔬菜中哒螨灵农药残留量的检测方法。样品经过提取、净化、浓缩后,用气质联用进行检测。方法的检出限0.05mg/L,样品中哒螨灵的平均添加回收率在79.7%～89.5%之间,变异系数在3.21%～4.78%之间。

A simply and rapid method was established for determining pyridaben residues in fruits and vegetables through the experiment by GC-MS. Samples were extracted,cleaned up,derivative and subjected to GC-MS. The lowest detectable concentration in samples was 0.05 mg/L. Samples recoveries ranged from 79.7-89.5%. The coefficients of variation was 3.21-4.78%.