QuEChERS法和UPLC-MS-MS法快速测定棉籽中的马拉硫磷 |
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引用本文: | 卜庆状,王建忠,李广,郭春景,林秋君.QuEChERS法和UPLC-MS-MS法快速测定棉籽中的马拉硫磷[J].安徽农业科学,2017,45(12). |
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作者姓名: | 卜庆状 王建忠 李广 郭春景 林秋君 |
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作者单位: | 辽宁省农业科学院,辽宁沈阳,110161;辽宁省农业科学院,辽宁沈阳,110161;辽宁省农业科学院,辽宁沈阳,110161;辽宁省农业科学院,辽宁沈阳,110161;辽宁省农业科学院,辽宁沈阳,110161 |
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摘 要: | 目的]建立超高效液相色谱-串联质谱(UPLC-MS-MS)对棉籽中马拉硫磷的检测方法。方法]棉籽样品经乙腈提取,正交试验优化QuEChERS净化方法,正离子多反应监测(MRM)模式测定。结果]该方法在0.01~1.00 mg/L线性关系良好,相关系数为0.999 9,最低检出量为2μg/kg,最低检出浓度为10μg/kg,加标回收率82.29%~90.64%,相对标准偏差在5.25%~14.64%。结论]该方法简便、快速、准确、灵敏,节省有机溶剂,环境友好,适合大批量棉籽中马拉硫磷的检测需要。
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关 键 词: | 超高效液相色谱-串联质谱法 QuEChERS法 棉籽 马拉硫磷 |
Using QuEChERS and UPLC-MS-MS Method to Rapidly Determine Malathionin in Cotton-seed |
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Abstract: | Objective] A method was developed for determination of malathion in cotton-seed by using ultra performance liquid chromatography-tandem mass spectrometry.Method] The samples were extracted by acetonitrile, the QuEChERS purification method was optimized by orthogonal array design and the positive ion multiple reaction monitoring (MRM) mode was used.Result] The results showed that the linear ranges of malathion were 0.01-1.00 mg/L and the correlation coefficient was 0.999 9.The minimum detectable quantity and minimum detectable concentration were 2 μg/kg and 10 μg/kg respectively.The average recoveries were in the range of 82.29%-90.64%.The relative standard deviations were between 5.25% and 14.64%.Conclusion] The method is proved to be simple, fast, accurate, sensitive, saving organic solvents, suitable for mass detection of actual needs. |
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Keywords: | Ultra performance liquid chromatography-tandem mass spectrometry QuEChERS Cotton-seed Malathion |
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