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当前位置: 首页 > 文章 > 液相色谱荧光法测定稻谷及秸秆中阿维菌素残留量 安徽农业科学 2009,37 (29) 13995-13996+14040
Position: Home > Articles > Determination of Avermectin Residue in Rice Grain and Straw with the Method of HPLC Fluorecence Detection Journal of Anhui Agricultural Sciences 2009,37 (29) 13995-13996+14040

液相色谱荧光法测定稻谷及秸秆中阿维菌素残留量

作  者：
张娟;汤锋;唐俊;花日茂
单  位：
安徽省农产品安全重点实验室安徽农业大学资源与环境学院
关键词：
阿维菌素;农药残留分析;水稻;高效液相色谱荧光法
摘  要：
[目的]运用柱前衍生-高效液相色谱荧光法,建立稻米及水稻秸秆中阿维菌素残留量的测定方法。[方法]稻米样品采用乙腈-乙酸乙酯(1∶1,V∶V)提取,水稻秸秆采用乙酸乙酯提取。提取液经三氟乙酸酐和N-甲基咪唑衍生化后,高效液相色谱荧光法测定。[结果]结果表明,在0.001～0.100mg/kg的添加浓度范围内,阿维菌素在稻米中的添加回收率为80.1%～94.5%,变异系数为3.5%～6.2%;在水稻秸秆中的回收率为77.8%～82.8%,变异系数为1.1%～4.9%。该方法在稻谷中的最小检测浓度为1.000μg/kg,在秸秆中的最小检测浓度为0.500μg/kg。[结论]该方法的灵敏度与准确度符合农药残留分析要求。
译  名：
Determination of Avermectin Residue in Rice Grain and Straw with the Method of HPLC Fluorecence Detection
作  者：
ZHANG Juan et al(Key Laboratory of Agri-Food Safety of Anhui Province,School of Resource and Environment,Anhui Agricultural University,Hefei,Anhui 230036)
关键词：
Avermectin;Residue analysis;Rice;HPLC
摘  要：
[Objective]The method of avermectin residue in rice grain and straw was developed through the operation of HPLC fluorecence detection.[Method] The rice grain samples were extracted with acetonitrile/ethyl acetate(1∶1,V∶V) and the rice straw samples were extracted with ethyl acetate.After derived by TFAA-NMIM system without water,the content of avermectin in the extracts was determined with HPLC-fluoresoence detector.[Results] The results suggested that in the range of adding concentration of 0.001-0.100 mg/kg,the recovery of avermectin from rice grain was 80.1%-94.5%,with the variation coefficient of 3.5%-6.2% and rice straw,77.8%-82.8%,with the variation coefficient of 1.1%-4.9%.The minimum testing concentration with the method for rice grain was 1.000 μg/kg and for rice straw,0.500 μg/kg.[Conclusion] The sensitivity and accuracy of the proposed method were fitted for the analysis of pesticide residue in rice.

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