茶叶农药残留色谱质谱法分析中常规前处理方法对检测结果的影响  

Influence of Detection Result on Conventional Pretreatment Method During GC or GC-MS Analysis of Pesticide Resdues in Tea

作　　者：罗俊霞[1] 赵建波 张刚 申战宾 潘玲 李艳珍 王倩[2] 赵利敏 张威 LUO Jun-xia;ZHAO Jian-bo;ZHANG Gang;SHEN Zhan-bin;PAN Ling;LI Yan-zhen;WANG Qian;ZHAO Li-min;ZAHNG Wei(Zhengzhou Agricultural Products Quality Inspection and Circulation Center,Zhengzhou,Henan 450006,China;Zhengzhou Agricultural Technology Extension Center,Zhengzhou,Henan 450002,China;Henan Hengsheng Testing Technology Co.,Ltd.,Xinzheng,Henan 451162,China;Kaifeng Agricultural Product Quality and Safety Testing Center,Kaifeng,Henan 475000,China)

机构地区：[1]郑州市农产品质量检测流通中心,河南郑州450006 [2]郑州市农业技术推广中心,河南郑州450002 [3]河南恒晟检测技术有限公司,河南新郑451100 [4]开封市农产品质量安全检测中心,河南开封475000

出　　处：《茶叶学报》2022年第3期189-198,共10页Acta Tea Sinica

基　　金：郑州市农产品质量检测中心建设项目[豫发改农经(2011)1778号];郑州市检测检验体系建设项目[郑农检(2012)12号];郑州市农产品质量安全追溯体系建设项目[郑发改农经(2013)126号]。

摘　　要：为了解茶叶中色谱质谱分析前处理方法的检测效果、扩充检测参数,将相关文献进行梳理和归纳,重点总结了常规分析方法的提取和净化两个步骤的效果,对茶叶样品提取步骤所使用的提取溶剂、提取方式,净化步骤所使用的净化材料、SPE小柱、洗脱溶剂等同所分析的农药相结合,给出了分析的效果。认为在茶叶中农药多残留的色谱、质谱法分析中,根据目标分析物的结构特征、性质特征,选择复合溶剂和复合净化材料进行处理,将获得较好的效果。Effect of sample pretreatment for gas chromatography-mass spectrometric(GC-MS) determination of pesticide residues in tea was analyzed. This article summarizes a literature review regarding the substrate extraction and purification on tea samples prior to GC-MS analysis. Generally, a specimen is firstly extracted using specific solvent(s) under defined conditions and procedures, and the extract purified using an eluent on a SPE column to collect eluate to be injected into a GC-MS device for an automated determination of the chemical components. Thus, pretreatment is critical for an accurate and reliable analysis and better obtained by employing composite solvents that have been selected according to the structure and characteristics of the target pesticide for the extraction and purification.

关 键 词：茶叶 农药残留 提取 净化 洗脱 

分 类 号：S481.8[农业科学—农药学]