| 茶叶农药残留检测方法比较研究 |
| |
| 引用本文： | 王震,李俊,郭晓关,庞宏宇.茶叶农药残留检测方法比较研究[J].贵州大学学报(农业与生物科学版),2011,30(5):434-439. |
| |
| 作者姓名： | 王震 李俊 郭晓关 庞宏宇 |
| |
| 作者单位： | 贵州省农产品质量安全监督检验测试中心,贵州贵阳,550004 |
| |
| 摘 要： | 试验比较了快速溶剂萃取(ASE)和高速匀浆提取,固相萃取净化(SPE)和凝胶色谱净化(GPC),气相色谱(GC)和气质联用(GC-MS)检测对茶叶中农药残留,建立了茶叶中32种农药残留的检测方法,其中包含了相关标准规定的茶叶所需检测的14种农药、增加了13种高毒农药和5种菊酯类农药。样品采用两种方法提取,两种方法净化,两种仪器检测分析,分别做添加回收试验。结果表明:在0.10 mg/kg添加浓度下作添加回收试验,回收率和相对标准偏差分别为:一般提取和固相萃取净化81.00%～119.80%、1.10～5.42;一般提取和凝胶色谱净化76.47%～93.45%、3.43～7.34;ASE快速萃取和固相萃取净化80.12%～110.30%、1.37～5.32;ASE快速萃取和凝胶色谱净化76.45%～93.56%、2.56～7.98。MDL分别为MSD在0.079～14.40μg/kg、FPD/ECD在0.24～98.0μg/kg。该研究讨论的几种方法组合都具有高灵敏度、快速、准确度高、线性范围宽等优点,可满足茶叶中农药检测的要求。
|
| 关 键 词： | 茶叶 农药残留 快速溶剂萃取 固相萃取净化 凝胶色谱净化 气相色谱 气质联用 |
A Comparative Study of Methods for Detection of Pesticide Residues in Tea |
| |
| WANG Zhen,LI Jun,GUO Xiao-guan,PANG Hong-yu.A Comparative Study of Methods for Detection of Pesticide Residues in Tea[J].Journal of Mountain Agriculture & Biology,2011,30(5):434-439. |
| |
| Authors: | WANG Zhen LI Jun GUO Xiao-guan PANG Hong-yu |
| |
| Institution: | WANG Zhen,LI Jun,GUO Xiao-guan,PANG Hong-yu(Supervision and Testing Center for Agri-produce Quality and Safety of Guizhou Province,Guiyang Guizhou 550004,China) |
| |
| Abstract: | The samples were extracted by Accelerated Solvent Extraction(ASE) and high-speed homogenate extraction,and purified by Solid Phase Extraction(SPE) and Gel Permeation Chromatography(GPC),then determined by Gas Chromotography-Mass Spectrometry(GC-MS) and Gas Chromatography(GC).This paper focused on the method for determination of residues of 32 kinds of pesticides,in which 14 kinds are need to detection in tea product,and 13 kinds are high toxic pesticides and 5 kinds are dimethrin pesticides.Two extracting m... |
| |
| Keywords: | tea pesticide residue Accelerated Solvent Extraction(ASE) Solid Phase Eextraction(SPE) Gel Permeation Chromatography(GPC) Gas Chromatography(GC) Gas Chromatography-Mass Spectrometry(GC-MS) |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
