气相色谱法测定香蕉中的噻嗪酮和吡虫啉  

Gas Chromatography Method for Determination of Buprofezin and Imidacloprid in Bananas

作　　者：潘永波[1] 张艳玲[1] 

机构地区：[1]中国热带农业科学院分析测试中心,海口571101

出　　处：《农药》2013年第12期903-904,共2页Agrochemicals

基　　金：海南省自然科学基金(313052)

摘　　要：【目的】建立同时测定香蕉中噻嗪酮和吡虫啉残留的气相色谱分析方法。【方法】香蕉样品采用乙腈提取，经过FlorisilSPE净化，气相色谱仪检测。【结果】样品在不同水平的添加回收试验中，方法的平均回收率为87．5％-100．1％，相对标准偏差为0．84％-2．31％，噻嗪酮和吡虫啉的最低检测质量分数分别为0．01、0．02mg／kg。【结论】该方法灵敏度、准确度、精密度符合农药残留分析的要求。[Aims] A new method was developed for residual analysis of buprofezin and imidacloprid in banana by gas chromatography （GC）. [Methods] The banana samples were extracted by acetonitrile, cleaned through Florisil SPE column, and detected by gas chromatograph. [Results] The average recovery was 87.5-100.1% at different spiked levels, the relative standard deviation was 0.84-2.31%, the minimum detectable concentration of buprofezin and imidacloprid were 0.01 and 0.02 mg/kg. [Conclusions] The sensitivity, accuracy and precision of this method meet with the requirements of the pesticide residue analysis.

关 键 词：噻嗪酮 吡虫啉 气相色谱 

分 类 号：TQ450.263[化学工程—农药化工] O657.71[理学—分析化学] TS255.7[理学—化学]