| 固相萃取-气相色谱法测定茶叶中多种有机磷农药 |
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| 引用本文： | 游飞明,吴 芳,陆万平,张 庆,张 兰.固相萃取-气相色谱法测定茶叶中多种有机磷农药[J].分析测试技术与仪器,2011,17(1):6-10. |
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| 作者姓名： | 游飞明 吴 芳 陆万平 张 庆 张 兰 |
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| 作者单位： | 游飞明,YOU Fei-ming(福建省产品质量检验研究院,福建,福州,350002);吴芳,陆万平,张庆,张兰,WU Fang,LU Wan-ping,ZHANG Qing,Zhang Lan(福州大学食品安全分析与检测教育部重点实验室,福建,福州,350002) |
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| 基金项目： | 国家自然科学基金，高等学校科技创新工程重大项目培育项目，福建省自然科学基金，福建省质量技术监督局科技项目 |
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| 摘 要： | 建立了固相萃取-气相色谱法同时测定茶叶中16种有机磷农药残留的方法.样品用丙酮超声提取后,经自制的N-丙基乙二胺(PSA)/活性炭固相萃取柱净化,以混合溶剂乙腈/甲苯(V(乙腈)∶V(甲苯)=1∶3)洗脱,采用气相色谱-氮磷检测器(GC-NPD)测定.方法的回收率在62.8%～109.1%之间,相对标准偏差小于14.7%1,6种有机磷农药的检出限在0.01～0.16 mg/kg之间.方法快速简便、经济实用。
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| 关 键 词： | 固相萃取 气相色谱 茶叶 有机磷 农药残留 |
| 收稿时间： | 2010/10/18 0:00:00 |
| 修稿时间： | 2010/12/16 0:00:00 |
Determination of Organophosphorus Pesticide Residues in Tea by Solid-phase Extraction Gas Chromatography |
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| YOU Fei-ming,WU Fang,LU Wan-ping,ZHANG Qing and Zhang Lan.Determination of Organophosphorus Pesticide Residues in Tea by Solid-phase Extraction Gas Chromatography[J].Analysis and Testing Technology and Instruments,2011,17(1):6-10. |
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| Authors: | YOU Fei-ming WU Fang LU Wan-ping ZHANG Qing and Zhang Lan |
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| Institution: | YOU Fei-ming1,WU Fang2,LU Wan-ping2,ZHANG Qing2,Zhang Lan2 (1.Fujian Inspection and Research Institute for Product Quality,Fuzhou 350002,China,2.Instrumentation Analysis and Measurement Center of Fuzhou University,China) |
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| Abstract: | A method for the determination of 16 organophosphorus pesticide residues in tea by Gas Chromatography-Nitrogen Phosphorus Detector(GC-NPD) with ultrasonic extraction was established.Tea samples were extracted with 10 mL of acetone,and then cleaned by homemade PSA/activated carbon SPE cartridge and eluted with acetonitrile-toluene(1∶3,V/V).16 organophosphorus pesticides were well separated and detected with high repeatability and precision.The recovery rate of the method was between 62.8% and 109.1%.The relative standard deviation was less than 14.7%.The limit of detection of 16 organophosphorus was between 0.01 mg/kg and 0.16 mg/kg.The method is reliable rapid and is,suitable for the analysis of pesticide residues in real samples. |
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| Keywords: | organophosphorus pesticide residue SPE gas chromatography tea |
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