| 高效液相色谱-串联飞行时间质谱法测定茶叶中6种农药的残留量 |
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| 引用本文： | 冯永巍,薛庆海,汪振炯. 高效液相色谱-串联飞行时间质谱法测定茶叶中6种农药的残留量[J]. 食品与发酵工业, 2013, 39(5): 176-179 |
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| 作者姓名： | 冯永巍 薛庆海 汪振炯 |
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| 作者单位： | 1. 无锡市产品质量监督检验中心,江苏无锡,214101
2. 南京晓庄学院生物化工和环境工程学院,江苏南京,211171 |
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| 摘 要： | 建立了茶叶中噻嗪酮、毒死蜱、啶虫脒、吡虫啉、乐果、多菌灵等6种农药残留量的高效液相色谱-串联飞行时间质谱检测方法。茶叶样品经酸化乙腈提取,基质分散固相萃取净化。经高效液相色谱分离后进入飞行时间质谱检测。6种农药浓度在1～50μg/kg下线性关系良好,相关系数R2在0.995～0.999之间,检测限在0.01～1μg/kg之间,回收率在80%～102%之间,相对标准偏差(RSD)在4%～6%之间。该方法快速、准确、灵敏度高,能够满足茶叶中多种农药残留的定性、定量检测需求。
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| 关 键 词： | 农药残留 茶叶 飞行时间质谱 |
Determination of six pesticide residues in tea by high performance liquid chromatogram tandem time-of-flight mass spectrometry |
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| FENG Yong-wei,XUE Qing-hai,WANG Zhen-jiong. Determination of six pesticide residues in tea by high performance liquid chromatogram tandem time-of-flight mass spectrometry[J]. Food and Fermentation Industries, 2013, 39(5): 176-179 |
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| Authors: | FENG Yong-wei XUE Qing-hai WANG Zhen-jiong |
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| Affiliation: | 1(Wuxi Supervision and Testing on Product Quality Center,Wuxi 214101,China) 2(School of Biochemical and Enviromental Engineering,Nanjing Xiaozhuang University,Nanjing 211171,China) |
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| Abstract: | A method for determining the residues of buprofezin,chlorpyrifos,acetamiprid,omethoate,dimethoate and carbendazim in tea by high performance liquid chromatogram(HPLC) tandem time-of-flight(TOF) MS was developed.Tea samples were extracted by acidic acetonitrile,cleaned up by matrix solid-phase dispersion and detected by HPLC-TOF MS.The method presented a good linear relation linear correlation(R2=0.995～0.999) with the concentration ranged from 1 to 50 μg/kg.Limits of detection varied with different pesticides could be measured at 0.01～1 μg/kg,the average recoveries ranged from 70% to 102% and relative standard deviation(RSD) was between 4%～6%.The method is fast,accurate and reliable and suitable for quantitative and qualitative detection of pesticide residues in tea. |
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| Keywords: | pesticide residue tea HPLC-TOF MS |
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