气相色谱-质谱联用快速检测果蔬汁中56种农药残留

A Rapid Method of GC-MS Detection of 56 Kinds of Pesticides Residue in Fruit & Vegetable Juices

[目的]建立一种利用气相色谱-质谱联用仪快速检测果蔬汁中56种农药残留的方法。[方法]测定65种市售果汁(浆)及果汁饮料和蔬菜汁(浆)及果汁饮料。[结果]样液浓度在0.001~0.100 mg/L时,校准曲线相关系数为0.991 65~0.999 98,回收率为71.6%~116.1%,相对标准偏差为2.21%~9.84%,检出限为0.001~0.070 mg/L。[结论]此方法操作简单、省时省力、灵敏度高,适用于不同类别的果蔬汁中农药残留的测定,为果蔬汁的质量安全监督检测提供依据。

[Objective] The research aimed to establish a method for rapid determination of 56 kinds of pesticide residues in fruit and vegetable juices by gas chromatography-tandem mass spectrometry （GC-MS）.[Method]Sixty-five commercially available juices （pulps） and fruit juice beverages and vegetable juices （pulps） and fruit juice beverages were measured.[Result]The linear ranges of 56 kinds of pesticide standards were 0.001-0.100 mg/L, with linear correlation coefficients were 0.991 65-0.999 98, the recoveries were 71.6%-116.1%, and relative standard deviations （RSD） were 2.21%-9.84%. The limits of detections （LOD） were 0.001-0.070 mg/L.[Conclusion]This method is simple, time-saving and high sensitivity.It is suitable for the determination of pesticide residues in different types of fruit and vegetable juices, and provides a basis for quality and safety supervision and testing of fruit and vegetable juices.