| 气相色谱法测定茶叶中有机氯和拟除虫菊酯农药残留的研究 |
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| 引用本文： | 班睿,李玉美,黄荣茂.气相色谱法测定茶叶中有机氯和拟除虫菊酯农药残留的研究[J].安徽农业科学,2009,37(4):1410-1411. |
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| 作者姓名： | 班睿 李玉美 黄荣茂 |
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| 作者单位： | 贵州民族学院化学与环境科学学院,贵州,贵阳,550025;贵州大学精细化工研究开发中心,绿色农药和生物工程教育部重点实验室,贵州,贵阳,550025;贵州民族学院化学与环境科学学院,贵州,贵阳,550025;贵州大学精细化工研究开发中心,绿色农药和生物工程教育部重点实验室,贵州,贵阳,550025 |
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| 基金项目： | 贵州民族学院科研基金资助项目(GZNC20080JS013); 贵州省教育厅自然科学基金(2007055) |
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| 摘 要： | 目的]研究茶叶中农药残留的检测分析方法。方法]茶叶样品用乙腈超声波提取，浓缩后经Florisil固相萃取柱净化，采用丙酮-正己烷（V：V=1：9）溶液淋洗，利用毛细管气相色谱法检测茶叶中的农药残留。结果]结果表明，该方法的线性范围为0．01～0．50mg／L，茶叶样品加标浓度为0．01～0．50mg／kg时，回收率为85．0％～101．1％，相对标准偏差为1．5％～7．8％。结论]该方法满足茶叶中有机氯和拟除虫菊酯农药残留分析的要求。
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| 关 键 词： | 茶叶 有机氯 拟除虫菊酯 残留 |
Study on Multiresidue Determination of Organochlorine and Pyrethroid Pesticides in Tea by Gas Chromatography |
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| BAN Rui et al.Study on Multiresidue Determination of Organochlorine and Pyrethroid Pesticides in Tea by Gas Chromatography[J].Journal of Anhui Agricultural Sciences,2009,37(4):1410-1411. |
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| Authors: | BAN Rui |
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| Institution: | BAN Rui et al(College of Chemistry , Environmental Science,Guizhou University for Nationalites,Guiyang,Guizhou 550025) |
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| Abstract: | Objective]The purpose aimed to study the method of determining and analyzing organochlorine and pyrethroid pesticides in tea.Method] An analytical multi-residue method for simultaneous determination of 11 pesticides(8 organochlorines and 3 pyrethroids) in tea was developed.Pesticides were extracted from tea with acetonitrile in an ultrasonic bath and cleaned up on a Florisil's SPE column by acetone and n-hexane,then were determined by gas chromatography with μ-ECD detection.Result]The results indicated that the average recoveries for the pesticides ranged from 85.0% to 101.1%,with the relative standard deviation(RSD)between 1.5% and 7.8% for all compounds.Conclusion]The method is satisfied with the determination demands of organochlorine and pyrethroid pesticide multi-residues for tea samples. |
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| Keywords: | Tea Organochlorine Pyrethroid Residue |
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