| 牛奶中14种除草剂残留的气相色谱-串联质谱检测方法开发 |
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| 引用本文： | 叶倩,朱富伟,王刚,廖林瀚,唐雪妹.牛奶中14种除草剂残留的气相色谱-串联质谱检测方法开发[J].农药学学报,2022,24(2):404-410. |
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| 作者姓名： | 叶倩 朱富伟 王刚 廖林瀚 唐雪妹 |
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| 作者单位： | 1.广东省农业科学院 农业质量标准与监测技术研究所，广州 510640 |
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| 基金项目： | 国家重点研发计划(2019YFC1605204)；广东省基础与应用基础研究基金项目(2020A1515010620)；广东省农业科学院科技创新战略专项资金(高水平农科院建设). |
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| 摘 要： | 建立了同时快速检测牛奶中14种除草剂残留的气相色谱-串联质谱(GC-MS/MS)分析方法.样品采用乙腈提取,无水硫酸镁和无水乙酸钠净化,过0.22μm有机相滤膜后,目标物采用气相色谱-串联质谱(EI离子源)、多反应监测模式(MRM)检测.结果表明:在0.005～1 mg/L范围内,14种目标除草剂的质量浓度与其相应峰面...
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| 关 键 词： | 牛奶 除草剂 气相色谱-串联质谱(GC-MS/MS) 农药多残留 |
| 收稿时间： | 2021-06-24 |
Development of gas chromatography-tandem mass spectrometry detection method for 14 herbicides residues in milk |
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| Institution: | 1.Institute of Quality Standard and Monitoring Technology for Agro-Products of Guangdong Academy of Agricultural Sciences, Guangzhou 510640, China2.Laboratory of Quality and Safety Risk Assessment of Agro-Product (Guangzhou), Ministry of Agriculture and Rural Affairs, Guangzhou 510640, China3.Guangdong Agricultural Monitoring Technology Co., Ltd. , Guangzhou 510640, China |
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| Abstract: | A gas chromatography-tandem mass spectrometry(GC-MS/MS) method for the simultaneous and rapid determination of 14 herbicides in milk was established. The samples were extracted with acetonitrile, cleaned-up with MgSO4 and Na2AC, filtered through 0.22 μm organic filter membrane, and the anlytes were determinated with GC-MS/MS (EI source and MRM mode). The results showed that the calibration curve was linear in the range of 0.005-1 mg/L and determination coefficient (R2) was higher than 0.990 2. The average recoveries of 14 herbicides were 76%-113% and the relative standard deviations (RSD) were 1.2%-8.6% (n=6) when the spiked levels were 0.01, 0.05 and 0.5 mg/kg. The limits of quantitation (LOQ) for 14 herbicides were 0.01 mg/kg. The method is accurate, sensitive, simple, and suitable for the simultaneous and rapid determination of 14 herbicides residues in milk. |
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