QuEChERS-液相色谱-串联质谱法测定植物性食品中30种氨基甲酸酯类农药残留  

Determination of 30 carbamate pesticide residues in vegetative foods by QuEChERS-liquid chromatography-tandem mass spectrometry

作　　者：达晶[1] 王钢力[1] 曹进[1] 张庆生[1] 

机构地区：[1]中国食品药品检定研究院,北京100050

出　　处：《色谱》2015年第8期830-837,共8页Chinese Journal of Chromatography

摘　　要：基于欧洲标准化委员会标准方法（EN 15662）对食品基质的分类,选择6种代表性植物性食品作为基质,系统优化了Qu ECh ERS样品前处理方法;在此基础上,建立了30种氨基甲酸酯类农药的液相色谱-串联质谱分析方法。实验结果表明,除涕灭威砜的线性范围为2～100μg/kg,其他29种氨基甲酸酯类农药的线性范围均为1～100μg/kg;6种样品基质在3个添加水平（5、20、100μg/kg）下的回收率为56.13%～127.6%,相对标准偏差为0.47%～16%;以信噪比（S/N）≥10计,30种农药的定量限（LOQ）为0.041～1.9μg/kg。本文方法灵敏、有效,适用于植物性食品基质中30种氨基甲酸酯类农药残留的测定。Via the classification of vegetative foods in British Standard EN 15662, six represent- ative food matrices were chosen in the current study. The QuEChERS method for each matrix was optimized. The 30 carbamate pesticide residues in the samples after pretreatment were determined by liquid chromatography-tandem mass spectrometry in positive ionization mode. According to the experimental results, the linear ranges were 1-100 μg/kg for aldicarb sulfone and 2- 100 μg/kg for the others. The recoveries at three spiked levels of 5, 20 and 100 μg/kg in the six representative matrices were between 56. 13% and 127.6%, with the RSDs between 0.47% and 16%. The limits of quantification （S/N≥ 10） were in the range of 0. 041- 1.9 μg/kg. In conclusion, this method provides a sensitive and efficient way suitable for the analysis of the 30 carbamate pesticide residues in vegetative foods.

关 键 词：液相色谱-串联质谱 QU ECh ERS 氨基甲酸酯类农药 植物性食品 

分 类 号：O658[理学—分析化学]