茶叶中多类农药残留的同步净化与高效前处理方法研究

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中图分类号：TS262.3 文献标志码：A 文章编号：1674-0270（2025）32-0117-03

Research on Simultaneous Purification and Efficient Pretreatment Methods for Multi-class Pesticide Residues in Tea

HUANGLili,YINPingping,WEI Zongli (Merieux Testing Technologies (Qingdao) Co.,Ltd.,Qingdao 266114,China)

Abstract: In responseto the problems of low purification efficiencyand cumbersomeoperation in thepretreatmentof multi-pesticideresidue detectionintea,this paperaimstodevelopanovel simultaneouspurification method,DMsPE. Green tea,black tea and oolong tea were used as samples,and the DMsPEandQuEChERS methods were respectively applied for the pretreatment. Two representative pesticides were detected by gas chromatography - tandemmass spectrometry (GC-MS/MS)and liquid chromatography-tandem mass spectrometry (LC-MS/MS),and the core indicators such as purification effct,recoveryrate,matrix efectandoperational eficiencywere comparedand evaluated.The average recovery rate of the DMsPE group significantly increases to 94.3% 2 105.3% 0 SRSDRSD

KeyWords:pesticide residue; tea;DMsPE;QuEChERS

当前，QuEChERS技术作为常用的前处理方法，在茶叶多农残检测中应用广泛，但仍存在净化效率不足、操作步骤繁琐等问题，影响检测准确性和效率[。（剩余4474字）