QuEChERS前处理法测定茶叶中8种农药残留
Determination of Eight Pesticide Residues in Tea by QuEChERS Pretreatment Method
陈文杉1
作者信息
- 1. 名成腾德检测服务(福州)有限公司,福建 福州 350007
- 折叠
摘要
本研究采用QuEChERS法测定茶叶中8种农药残留量.茶叶样品中的氧乐果、吡虫啉、啶虫脒、灭多威、克百威、3﹣羟基克百威、异丙威、氯虫苯甲酰胺残留经乙腈提取,以QuEChERS散化固相萃取小柱吸附提取液中的有机酸、色素等杂质,再经离心、过滤后经UPLC-MS/MS法测定,外标基质法定量,研究提取、净化的最优条件.
Abstract
The QuEChERS method was used to determine eight pesticide residues in tea.The residues of omethoate,imidacloprid,diniprid,Metocarb,carboxanil,3-hydroxycarboxanil,isoprocarb and chlorobenzamide in tea samples were extracted by acetonitrile.Organic acids,pigments and other impurities were adsorbed by QuEChERS dispersive solid phase extraction column,then determined by UPLC-MS/MS method after centrifugation and filtration,and quantified by external standard matrix method.The optimum conditions for extraction and purification were studied.
关键词
QuEChERS/UPLC-MS/MS/茶叶/测定/农药残留Key words
QuEChERS/UPLC-MS/MS/tea/determination/pesticide residues引用本文复制引用
出版年
2024
NETL
NSTL
万方数据