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UPLC/MS/MS法测定芦笋中抗蚜威及其代谢物残留量
邵辉,李辉,李娜,刘磊,张宇娇,宋淑荣,张玉婷,郭永泽
0
(天津市农业质量标准与检测技术研究所,天津 300381)
摘要:
采用乙腈提取,NH2固相萃取柱净化,建立了芦笋中抗蚜威及其代谢物(脱甲基抗蚜威、脱甲基甲酰胺基抗蚜威)残留量的UPLC/MS/MS测定方法。添加抗蚜威及其代谢物质量分数均为0.002、0.01、0.1 mg·kg-1,平均回收率在93.8%~100.8%,相对标准偏差在3.9%~9.1%,定量限均为0.002 mg·kg-1
关键词:  UPLC/MS/MS  测定  芦笋  抗蚜威及其代谢物
DOI:
投稿时间:2012-03-08
基金项目:江苏省太湖污染治理项目(TH2011210)资助。
Determination of pirimicarb and its metabolites in asparagus by UPLC/MS/MS
SHAO Hui,LI Hui,LI Na,LIU Lei,ZHANG Yu-jiao,SONG Shu-rong,ZHANG Yu-ting,GUO Yong-ze
(Tianjin Agricultural Quality Standard and Testing Technology Research Institute, Tianjin 300381)
Abstract:
Asparagus samples were extracted with acetonitrile, cleaned up by NH2 solid phase extraction column. An accurate UPLC/MS/MS method for the determination of pirimicarb and its metabolites in asparagus was developed. Precision and accuracy were assessed by adding pirimicarb and its metabolites in asparagus at three concentration levels (0.002, 0.01 and 0.1 mg·kg-1) and each with five replicates. The average recoveries of pirimicarb and its metabolites were between 93.8% and 100.8% with the RSDs between 3.9% and 9.1%, and the limits of quantitation were 0.002 mg·kg-1.
Key words:  UPLC/MS/MS  determination  asparagus  pirimicarb and its metabolites

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