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刊物期号: 201707

高效液相色谱-串联质谱法测定葡萄酒中11种磺酰脲类除草剂残留量(115)

作者: 谢建军1,2,吴俊辉1,2,曾广丰1,2,丁 博1,2,王志元 1,2,卢 丽1,2,陈文锐 1,2

地址:1.广东出入境检验检疫局技术中心,广东 广州 510623; 2.广东省动植物与食品进出口技术措施研究重点实验室,广东 广州 510623
摘要 建立了固相分散萃取结合高效液相色谱-串联质谱法(LC/MS-MS)快速测定葡萄酒中11种磺酰脲类除草剂残留量的方法。样品用乙腈快速提取、氯化钠和无水硫酸镁盐析后,经C18粉、中性Al2O3粉组合吸附剂净化,LC/MS-MS外标法定性定量。11种除草剂在10~100 μg/L范围内线性关系良好,相关系数R2在0.9921~0.9998范围内。空白样品添加标准品浓度在10~50 μg/kg时,其回收率在66.7 %~86.1 %之间,相对标准偏差(n=6)小于8.5 %,方法的检出限(LOD)介于1.5~6.8 μg /kg之间。本方法简单、准确、快速,适用于葡萄酒中11种磺酰脲类除草剂残留量的检测。
关键词 QuEChERS; 葡萄酒; 高效液相色谱-串联质谱; 除草剂
中图分类号: TS262.6;TS261.7;O657.63;S482.4 文献标识码: A 文章编号: 1001-9286(2017)07-0115-06

英文标题: Determination of 11 Kinds of Sulfonylurea Herbicide Residues in Grape Wine by QuEChERS Combined with LC/MS-MS

英文作者: XIE Jianjun1,2,WU Junhui1,2,ZENG Guangfeng1,2,DING Bo1,2,WANG Zhiyuan1,2,LU Li1,2 and CHEN Wenrui1,2

英文地址: 1.Technical Center of Guangdong Entry-Exit Inspection and Quarantine Bureau, Guangzhou, Guangdong 510623;2.Guangdong Technical Measures Research Key Lab of Import and Export Animal, Plant and Food, Guangzhou, Guangdong 510623, China

英文摘要 The method for rapid determination 11 kinds of sulfonylurea herbicide residues in grape wine by solid-phase dispersion combined with LC/MS-MS had been developed in this study. 11 kinds of herbicide residues were extracted from wine samples with acetonitrile, salted out with sodium chloride and anhydrous magnesium sulfate, and cleaned up with C18 and Al2O3 powder. These residues were detected by LC/MS-MS with external standard method. The results showed that, there was a good linear relationship in range of 10~100 μg/L, the correlation coefficients were in the range of 0.9921~0.9998, the recoveries were in the range of 66.7 % to 86.1 % at the spiked levels of 10~50 μg/kg in grape wine, RSDs was less than 8.5 % (n=6), and the limit of detection were 0.2~10 μg/kg. This newly-developed method had the advantages including simple operation and accurate and rapid determination, and it could be used for the determination of 11 kinds of sulfonylurea herbicide residues in grape wine.
英文关键词 QuEChERS; grape wine; LC/MS-MS; herbicides
      

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