| 液-质联用测定鱼体内甲基磺草酮的残留量 |
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| 引用本文： | 段亚玲,陈迎丽,包,娜,陈,凯,杨鸿波,谭,红.液-质联用测定鱼体内甲基磺草酮的残留量[J].贵州科学,2014(1):72-77. |
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| 作者姓名： | 段亚玲 陈迎丽 包 娜 陈 凯 杨鸿波 谭 红 |
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| 作者单位： | [1]贵州省分析测试研究院,贵阳550002 [2]沈阳化工研究院有限公司安全评价中心,沈阳110021 |
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| 基金项目： | 黔科院J合字[2012]15号;化学品生态毒理测试与风险评估技术合作研究（2011DFB41640）. |
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| 摘 要： | 为了检测鱼体内甲基磺草酮的残留量,建立液相色谱串联质谱的方法测定甲基磺草酮。结果表明:在0.5~100μg/L浓度范围内,线性相关系数(r)为0.998 6。当添加质量分数为0.1~10μg/g时,甲基磺草酮在鱼体内的平均回收率为80.0%~99.3%,RSD为3.4%~8.4%。该方法的最小检出量为5.0×10-12g,鱼体内的最低检测质量分数(LOQ)为0.1μg/g。该方法操作简单可靠,准确度、精密度及其灵敏度均满足农药残留分析的要求,可用于鱼体内甲基磺草酮残留量的测定。
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| 关 键 词： | LC/MS/MS 甲基磺草酮 鱼体 残留量 |
Determination of Mesotrione Residue in Fish Using Liquid Chromatography Tandem Mass Spectrometry |
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| DUAN Ya-ling,CHEN Ying-li,BAO Na,CHEN Kai,YANG Hong-Bo TAN Hong.Determination of Mesotrione Residue in Fish Using Liquid Chromatography Tandem Mass Spectrometry[J].Guizhou Science,2014(1):72-77. |
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| Authors: | DUAN Ya-ling CHEN Ying-li BAO Na CHEN Kai YANG Hong-Bo TAN Hong |
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| Institution: | ( Guizhou Academy of Analysis and Testing, Guiyang, Guizhou 550002, China ; Safety Evaluation Center, Sheny- ang Research Institute of Chemical Industry Co. , Ltd. , Shenyang ,Liaoning 110021, China) |
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| Abstract: | In order to determinate the mesotrione residue in fish, a method was adopted to determine mesotrione by liquid chromatography tandem mass spectrum. The results showed that the calibration curve was good linear be- tween 0.5 and 100 ~xg/L with the correlation coefficient of 0.9986. When adding quantification of 0.1 -10 txg/g, the average recovery of mesotrione in fish was 80.0 % - 99.3 % and the coefficient of variation was 3.4 % ~ 8.4 %. The limit of detection was 5 x 10-12 g. The limit of quantification in fish was 0. lp~g/g. The method is simple, reliable, corrective, accurate and sensitive to satisfy the ＇requirements of analysis for pesticide residue, and can be applied to determine mesotrione residue in fish. |
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| Keywords: | LC/MS/MS mesotrione fish residue |
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