烟草中克百威和抗蚜威残留量测定  

Determination of carbofuran and pirimicarb in tobacco

作　　者：石杰[1] 龚炜[1] 刘惠民[2] 谢复炜[2] 史犇[1] 

机构地区：[1]郑州大学化学系,郑州450052 [2]中国烟草总公司郑州烟草研究院,郑州450001

出　　处：《分析试验室》2008年第4期22-24,共3页Chinese Journal of Analysis Laboratory

基　　金：河南省科技攻关(0496430006);河南省自然科学基础研究(0411021200)项目资助

摘　　要：采用液相色谱-质谱联用技术（LC-MS-MS）检测了烟草中的克百威和抗蚜威两种氨基甲酸酯类农药的残留量。样品用乙腈超声波提取,以甲醇-50mmol甲酸铵为梯度流动相,C18柱分离,电喷雾正离子选择反应监测（SRM）模式定量分析。结果表明,克百威和抗蚜威的平均加标回收率为96.05%-104.0%,相对标准偏差为2.8%-5.7%。样品前处理不含净化和浓缩步骤,操作简单。Carbofuran and pirimicarb in tobacco were analyzed by liquid chromatography-mass/mass spectrometry.The method is based on extraction by ultrasonication using acetonitrile.Satisfactory separation was achieved on C18 column using a mobile phase consisting of CH3OH-50 mmol/L ammonium formate.Ionization was performed in the electrospray（ESI） mode and quantitative analysis was carried out using the selective reaction monitering（SRM） mode.The recoveries ranged from 96.05% to 104.0% with relative standard deviations between 2.8% and 5.7%.As the analytical procedure does not include any concentration or clean up steps,it is easy and fast to be performed.

关 键 词：液相色谱-质谱 氨基甲酸酯 烟草 

分 类 号：O657.63[理学—分析化学]