Simultaneous Determination of Trace Matrine and Oxymatrine Pesticide Residues in Tea by Magnetic Solid-Phase Extraction Coupled with Liquid Chromatography-Tandem Mass Spectrometry  

作　　者：Hongmei Liu Yang Li Yangjiayi Xiang Hao Cao Yan Li 

机构地区：[1]Pharmaceutical Analysis Department,School of Pharmacy,Fudan University,Shanghai,201203,China [2]Center for Medical Research and Innovation,Shanghai Pudong Hospital,Fudan University Pudong Medical Center,Shanghai,201399,China [3]MOE Innovative Center for New Drug Development of Immune Inflammatory Diseases,Fudan University,Shanghai,201203,China

出　　处：《Journal of Analysis and Testing》2024年第2期245-250,共6页分析检测（英文）

基　　金：supported by funds provided by the National Natural Science Foundation of China(21974024 and 22274025)。

摘　　要：We developed a magnetic solid-phase extraction method using Fe_(3)O_(4)@polydopamine(Fe_(3)O_(4)@PDA)as adsorbents,coupled with liquid chromatography-tandem mass spectrometry(LC-MS/MS),for the enrichment and quantification of trace matrine and oxymatrine pesticide residues in tea.The adsorbent was easily synthesized at room temperature with high yields(500 mg).We investigated and optimized several factors that influence the efficiency of the method,including matrix pH,adsorbent amount,adsorption time,type of elution solvent.

关 键 词：ADSORBENT CHROMATOGRAPHY adsorption 

分 类 号：TS272.7[农业科学—茶叶生产加工] O657.63[轻工技术与工程—农产品加工及贮藏工程]