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Position: Home > Articles > Simultaneous Determination of Pyrethroids Pesticides in Tobacco by LC-MS/MS Method Agrochemicals 2009,48 (5) 365-367

高效液相色谱-串联质谱法分析烟草中拟除虫菊酯农药残留

作  者:
穆小丽;蒋腊梅;杜文
单  位:
湖南中烟工业有限责任公司技术中心
关键词:
加速溶剂萃取;液相-串联质谱;拟除虫菊酯农药;烟草
摘  要:
建立了液相-串联质谱法(LC-MS/MS)快速测定烟草样品中5种拟除虫菊酯农药残留的分析方法。以乙腈为溶剂,对烟草样品与氟罗里硅土混合的试样采用加速溶剂萃取仪萃取,浓缩,以甲醇-0.1%醋酸铵的水溶液(体积比98∶2)为流动相,经高效液相色谱分离,以串联质谱在采用多反应监控(MRM)模式下测定。5种拟除虫菊酯农药线性关系良好,平均加标回收率在76.30%~103.64%之间,相对标准偏差为1.87%~7.48%。
译  名:
Simultaneous Determination of Pyrethroids Pesticides in Tobacco by LC-MS/MS Method
作  者:
MU Xiao-li,JIANG La-mei,DU Wen (Research Center of China Tobacco Hunan Industrial Co.,Ltd.,Changsha 410007,China)
关键词:
accelerated solvent extraction;LC-MS/MS;pyrethroid pesticides;tobacco
摘  要:
A novel method for simultaneous determination of five pyrethroids in tobacco was developed based on HPLC-tandem mass spectrometry(LC-MS/MS).The mixtures of tobacco and florisil were extracted with acetonitrile by accelerated solvent extraction(ASE)and concentrated.The extractive was determined by HPLC using methanol-water(containing 0.1%ammonium acetate)(98:2,by vol)as mobile phase.The pyrethroids were analyzed using a tandem mass spectrometer with electrospray ionization in multiple-reaction monitoring(MRM) mode.The conditions for chromatography,mass spectrometry were optimized.The regression coefficients were pretty good for all examined pyrethroids.The mean recoveries in tobacco ranged from 76.30 to 103.64%and the mean relative deviation from 1.87 to 7.48%.

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