PMID- 23189658 OWN - NLM STAT- MEDLINE DCOM- 20130809 LR - 20190923 IS - 1000-8713 (Print) IS - 1000-8713 (Linking) VI - 30 IP - 7 DP - 2012 Jul TI - [Rapid determination of pesticide multiresidues in vegetables and fruits by accelerated solvent extraction coupled with online gel permeation chromatography-gas chromatography-mass spectrometry]. PG - 654-9 AB - A novel method was developed for the rapid determination of 22 representative pesticide residues in vegetables and fruits based on accelerated solvent extraction (ASE) coupled with online gel permeation chromatography-gas chromatography-mass spectrometry (GPC-GC-MS). The sample was extracted by accelerated solvent extraction with dichloromethane-acetone (1:1, v/v) and purified with a carbon/NH2 column, evaporated to dryness by nitrogen, then dissolved in cyclohexane-acetone (7:3, v/v), and finally identified and quantified by GPC-GC-MS system in selected ion monitoring (SIM) mode. The results showed that the linearities of the 22 pesticides were good in their linear ranges. The limits of detection (S/N = 3) were 0.3-1.8 microg/kg. The limits of quantification (S/N = 10) ranged from 1-6 microg/kg. The recoveries for all at three spiked levels in Chinese cabbages and apples ranged from 70.5% to 107.5% with the relative standard deviations (RSDs) of 2.1%-8.7%. The proposed method is accurate, sensitive and highly efficient in the extraction, and can be used for the quick determination of the pesticide multiresidues in vegetables and fruits. FAU - Ouyang, Yunfu AU - Ouyang Y AD - Changzhou Center for Disease Control and Prevention, Changzhou 213022, China. ouyang1016@126.com FAU - Tang, Hongbing AU - Tang H FAU - Wu, Ying AU - Wu Y FAU - Li, Guiying AU - Li G LA - chi PT - English Abstract PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - China TA - Se Pu JT - Se pu = Chinese journal of chromatography JID - 9424804 RN - 0 (Pesticide Residues) RN - 0 (Solvents) SB - IM MH - Chemical Fractionation MH - Chromatography, Gel/*methods MH - Food Contamination/analysis MH - Fruit/*chemistry MH - Gas Chromatography-Mass Spectrometry/*methods MH - Pesticide Residues/*analysis MH - Solvents MH - Vegetables/*chemistry EDAT- 2012/11/30 06:00 MHDA- 2013/08/10 06:00 CRDT- 2012/11/30 06:00 PHST- 2012/11/30 06:00 [entrez] PHST- 2012/11/30 06:00 [pubmed] PHST- 2013/08/10 06:00 [medline] AID - 10.3724/sp.j.1123.2012.03039 [doi] PST - ppublish SO - Se Pu. 2012 Jul;30(7):654-9. doi: 10.3724/sp.j.1123.2012.03039.