食品安全导刊2024，Issue(30) ：84-86,90.

改进的QuEChERS结合高效液相色谱-串联质谱法测定牛奶中麦草畏及代谢物残留量

Determination of Dicamla and Its Metabolite Residues in Milk with Modified QuEChERS-HPLC-MS/MS

白国涛 马彩霞 任彩霞 张慧 陈丽梅 王婧
食品安全导刊2024，Issue(30) ：84-86,90.
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  • 万方数据

改进的QuEChERS结合高效液相色谱-串联质谱法测定牛奶中麦草畏及代谢物残留量

Determination of Dicamla and Its Metabolite Residues in Milk with Modified QuEChERS-HPLC-MS/MS

白国涛 1马彩霞 1任彩霞 1张慧 1陈丽梅 1王婧1
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作者信息

  • 1. 呼和浩特海关技术中心,内蒙古 呼和浩特 010020
  • 折叠

摘要

目的:建立改进的QuEChERS-高效液相色谱-串联质谱分析牛奶中麦草畏及代谢物残留的检测方法.方法:样品采用乙腈-0.1%乙酸的混合溶液提取,无水硫酸镁和C18 净化,高效液相色谱-串联质谱仪的MRM模式进行测定.结果:在 2.0～500.0 μg·L-1,3,6-二氯水杨酸和麦草畏的线性相关系数分别为0.996 0和 0.999 0,回收率分别为76.1%～98.5%和82.1%～103.9%,相对标准偏差分别为5.3%～7.3%和5.4%～8.6%,定量限为10 μg·kg-1.结论:该方法操作简便、结果准确,适用于牛奶中麦草畏农药残留的检测.

Abstract

Objective:To establish an improved QuEChERS high performance liquid chromatography-tandem mass spectrometry method for the determination of dicamla and its metabolites in milk.Method:The samples were extracted with mixed solution of acetonitrile and 0.1%acetic acid,purified by anhydrous magnesium sulfate and C18,and determined by MRM mode of high performance liquid chromatography-tandem mass spectrometer.Result:The linear correlation coefficients of dichlorosalicylic acid and trivaloba in 2.0～500.0 μg·L-1,3,6-dichlorosalicylic acid and trivaloba were 0.996 0 and 0.999 0,respectively.The recoveries were 76.1%～98.5%and 82.1%～103.9%,and relative standard deviation were 5.3%～7.3%and 5.4%～8.6%,respectively.The limit of quantification was 10 μg·kg-1.Conclusion:The method is simple and accurate,and suitable for the determination of dicamla pesticide residues of dicamba in milk.

关键词

高效液相色谱-串联质谱法/牛奶/麦草畏

Key words

high performance liquid chromatography-tandem mass spectrometry/milk/dicamla

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出版年

2024
食品安全导刊
商业科技质量中心 北京肉类食品协会

食品安全导刊

影响因子：0.065
ISSN：1674-0270
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