分析测试学报2011，Vol.30Issue(3)：312-315,4.DOI:10.3969/j.issn1004-4957.2011.03.016
分散固相萃取/高效液相色谱-串联质谱法检测大葱中虫酰肼、涕灭威及其衍生物的农药残留
Determination of Tebufenozide, Aldicarb, Aldicarb-sulfoxide and Aldicarb-sulfone in Scallion Using Dispersive Solid Phase Extraction Liquid Chromatography- Tandem Mass Spectrometry
摘要
Abstract
A liquid chromatography - tandem mass spectrometric ( LC - MS/MS) method was established for the determination of tebufenozide, aldicarb, aldicarb-suffoxide and aldicarb-sulfone in scallion. The samples were extracted with acetonitrile and ethyl acetate, respectively. It was found that the extraction efficiencies of 4 pesticides with acetonitrile were better than those with ethyl acetate. Co-extractives were removed from the acetonitrile extracts using dispersive solid phase extraction (DSPE). The calibration curves were linear in the range of 10 - 120 μg/L with correlation coefficients(r2) more than 0. 995. The limits of quantitation(LOQs) of 4 pesticides were all less than 10 μg · kg-1 , and the average recoveries at the spiked level of 10 μg · kg-1 in scallion samples ranged from 60％ to 110％ with RSDs less than 5.0％. The results showed that this method was rapid, sensitive and specific, and was appropriate for the simultaneous identification and quantification of 4 pesticides in scallion.关键词
分散固相萃取/液相色谱-串联质谱/多反应监测/农药残留/大葱Key words
dispersive solid-phase extraction (DSPE)/ liquid chromatography - tandem mass spectrometry ( LC - MS/MS)/ multi-reaction monitoring ( MRM )/ pesticide residues/ scallion分类
化学化工引用本文复制引用
丁葵英,吕文刚,孙军,董静,郝莹,宫小明..分散固相萃取/高效液相色谱-串联质谱法检测大葱中虫酰肼、涕灭威及其衍生物的农药残留[J].分析测试学报,2011,30(3):312-315,4.基金项目
山东出入境检验检疫局项目(SK201026) （SK201026）
