QuEChERS结合气相色谱-串联质谱法 测定果蔬中10种农药残留

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Determinationof1OPesticideResiduesinFruits and Vegetables by QuEChERS Combined with Gas Chromatography-Tandem Mass Spectrometry

WANG Quan1，SONG Wei²，JIA Hongxia'， SUN Chen1， JIN Yanan1 （1.Hengshui Comprehensive Inspection and Testing Center， Hengshui 0530o0， China; 2.Hengshui University， Hengshui 053000， China）

Abstract： Objective： Based on gas chromatography-tandem mass spectrometry （GC-MS/MS） technology， combined with the QuEChERS pretreatment method，a detection method for the simultaneous determinationof 10 pesticideresidues in fruits and vegetables was constructed.Method： Acetonitrile was used as the extraction solvent. After the fruit and vegetable samples were salted out bythe extraction salt coating，the supernatant was purified and extracted by PSA，and the detection was caried out under the multiple reaction monitoring mode of GC-MS/MS. Result： The 10 pesticides showed good linearity in the range of 0.02～0.50μg/mL-1 ，with correlation coefficients ranging from 0.998 1 to 0.999 9. The method detection limits were from 0.001mg-1kg-1 to 0.008mg.kg-1 ，the spiked recovery rates were from 75.4% to 113.7% ，and the relative standard deviations were from 1.4% to 9.6% . Conclusion： This methodis simple，rapid，andsensitive，and is suitable for the simultaneous detectionof10pesticides in fruitsand vegetables.

Keywords： fruits and vegetables; QuEChERS; gas chromatography-tandem mass spectrometry; pesticide residues

果蔬产业作为我国农业农村经济发展的关键驱动力，在国民经济中占据着重要位置。（剩余3442字）