title: [Analysis of 43 pesticide residues in vegetables using solid-phase extraction and gas chromatography-triple quadrupole mass spectrometry].
abstract: A method for the simultaneous analysis of 43 pesticide residues in vegetables by gas chromatography coupled with triple quadrupole mass spectrometry (GC-QqQ-MS/MS) was developed and validated. The samples were extracted with acetonitrile, and then purified by solid-phase extraction (SPE). The detection of 43 pesticides was carried out by GC-QqQ-MS/MS in the multi-reaction monitoring (MRM) mode using external standard method. The overall recoveries determined at three spiked levels of 10, 80 and 100 microg/kg were 62.2%-170.0%, which in the recoveries of 36 pesticides were 70.0%-120.0%. The relative standard deviations (RSDs) were less than 18%. The limits of quantification (S/N > or =10) were 0.3-4.4 microg/kg. The method possesses low background and high sensitivity. It can be applied to the routine analysis of the 43 pesticides in vegetables.
authors: Ningbo Key Laboratory of Poison Research and Control, Ningbo Municipal Center for Disease Control and Prevention, Ningbo 315010, China. shijw@nbcdc.org.cn
authors: Jiawei
authors: J
authors: Shi
authors: Jige
authors: J
authors: Li
authors: Yufei
authors: Y
authors: Wang
authors: Yonggang
authors: Y
authors: Zhao
mesh_terms: D002849:Chromatography, Gas / Q000379:methods*; D005506:Food Contamination / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D052616:Solid Phase Extraction / Q000379:methods*; D053719:Tandem Mass Spectrometry / Q000379:methods*; D014675:Vegetables / Q000737:chemistry*
chemical_list: D010573:Pesticide Residues