文章摘要
引用本文:张桂云,杨伟强,林常青,谢建华.分散固相萃取-超高效液相色谱串联质谱法测定茶叶中的7种农药残留[J].福州大学学报(自然科学版),2016,44(6):896~900
分散固相萃取-超高效液相色谱串联质谱法测定茶叶中的7种农药残留
Determination of seven pesticide residues in tea by dispersive solid-phase extraction and ultra performance liquid chromatography-tandem mass spectrometry
  
DOI:10.7631/issn.1000-2243.2016.06.0896
中文关键词: 分散固相萃取  超高效液相色谱串联质谱  茶叶  农药残留
英文关键词: dispersive solid-phase extraction  ultra performance liquid chromatography-tandem mass spectrometry  tea  pesticide residues
基金项目:
作者单位
张桂云 漳州职业技术学院农产品深加工及安全福建省高等学校应用技术工程中心福建 漳州 363000 
杨伟强 漳州市产品质量检验所福建 漳州 363000 
林常青 漳州职业技术学院农产品深加工及安全福建省高等学校应用技术工程中心福建 漳州 363000 
谢建华 漳州职业技术学院农产品深加工及安全福建省高等学校应用技术工程中心福建 漳州 363000 
摘要点击次数: 270
全文下载次数: 249
中文摘要:
      :以分散固相萃取技术为前处理手段,结合超高效液相色谱串联质谱法,建立一种快速检测茶叶中7种农药残留的方法. 茶叶样品经前处理后,采用UPLC-MS/MS法检测分析. 用空白样品提取液配制基质工作曲线,外标法定量. 结果表明,多菌灵、丁醚脲、喹螨醚在0.1~2.0、灭多威在1.0~20.0、噻虫嗪、吡虫啉、噻螨酮在2.0~40.0ng·mL-1的范围内具有良好的线性关系,其检出限为0.10~5.00μg·kg-1. 平均加标回收率为75.9%~116.8%,相对标准偏差为2.6%~6.1%. 该方法简便、可靠、稳定,可用于茶叶中多种农药残留的快速检测与确证.
英文摘要:
      A new method of ultra performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) combined with dispersive solid-phase extraction as the pretreatment had been established for the analysis of seven pesticide residues in tea. The pretreated tea samples were analyzed by UPLC-MS/MS. And the matrix-matched external standard calibration curves were used for quantitative analysis. The results show that carbendazim,diafenthiuron,fenazaquin has good linear relationship in the range of 0.1~2.0ng·mL-1,methomyl has good linear relationship in the range of 1.0~20.0ng·mL-1,thiamethoxam,imidacloprid,hexythiazox has a good linear relationship in the range of 2.0~40.0ng·mL-1. The limit of detection of this method was 0.10~5.00μg·kg-1.The average recoveries of the added sample were 75.9%~116.8% with relative standard deviation of 2.6%~6.1%. The method is simple,reliable and stable,and was suited for the rapid detection and confirmation of multiple pesticide residues in tea.
查看全文   查看/发表评论  下载PDF阅读器
关闭