Determination of 67 Pesticide Residues in Vegetables and Fruits by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Dispersive Solid Phase Extraction
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Determination of 67 Pesticide Residues in Vegetables and Fruits by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Dispersive Solid Phase Extraction
Vol. 35, Issue 12, Pages: 1528-1534(2016)
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东莞市农产品质量安全监督检测所
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Determination of 67 Pesticide Residues in Vegetables and Fruits by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Dispersive Solid Phase Extraction. [J]. 35(12):1528-1534(2016)
DOI:
Determination of 67 Pesticide Residues in Vegetables and Fruits by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Dispersive Solid Phase Extraction. [J]. 35(12):1528-1534(2016)DOI:
Determination of 67 Pesticide Residues in Vegetables and Fruits by Gas Chromatography-Triple Quadrupole Mass Spectrometry with Dispersive Solid Phase Extraction
An analytical method for the simultaneous determination of 67 pesticides in vegetables and fruits by gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS) with dispersive solid phase extraction(QuEChERS).The samples were extracted with acetonitrile(containing 1% acetic acid),and then cleaned up with dispersive solid phase extraction.The extracts were determined by GC-MS/MS in multi-reaction monitoring(MRM) mode with the external standard method. The calibration curves of 67 pecitides were linear in the range of 0.005-0.24μg/mL with correlation coefficients(r2) higher than 0.99.The average recoveries at spiked concentration levels of 0.02,0.06,0.12mg/kg ranged from 60.3% to 119.8% with relative standard deviations(RSDs) of 0.5%-14.7%.The limits of detection(LOD) for the method were in the range of 0.0001-0.003mg/kg.The limits of quantitations(LOQs) were 0.0002-0.009mg/kg.The method was applied in the detection of pesticide residues of vegetables and fruits,and the result was more satisfactory comparing with that of GC,GCP/GC-MS,LC-MS/MS methods. The method showed the advantages of simplicity, quickness, high sensitivity,good selectivity,good reproducibility and stability,and was suitable for the analysis of pesticide residues in daily vegetables and fruits.
关键词
气相色谱-三重四极杆串联质谱分散固相萃取蔬菜水果农药残留
Keywords
gas chromatography-triple quadrupole mass spectrometry(GC-MS/MS)dispersive solid phase extraction(QuEChERS)vegetablesfruitspesticide residues
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NHC Key Laboratory of Food Safety Risk Assessment, China National Center for Food Safety Risk Assessment
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