| 液相色谱串联四极杆质谱法同时测定婴幼儿配方食品中甲基香兰素和乙基香兰素 |
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| 引用本文： | 罗冠中,刘祥,孟云彩.液相色谱串联四极杆质谱法同时测定婴幼儿配方食品中甲基香兰素和乙基香兰素[J].分析试验室,2011,30(8):84-87. |
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| 作者姓名： | 罗冠中 刘祥 孟云彩 |
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| 作者单位： | 天津市产品质量监督检测技术研究院,天津,300384 |
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| 基金项目： | 天津市质量技术监督局科技项目(10-15)资助 |
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| 摘 要： | 建立了混合阴离子交换固相萃取柱净化,液相色谱串联四极杆质谱法测定婴幼儿配方食品中甲基香兰素和乙基香兰素的方法.样品经水和乙腈提取,CuSO4溶液沉淀蛋白,NaOH调节pH,增加样品溶解性,阴离子交换固相萃取柱净化.目标化合物在梯度洗脱条件下经C18柱分离后采用ESI源负离子多反应监测模式进行检测.分别选取了婴幼儿配方乳...
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| 关 键 词： | 液相色谱 串联四极杆质谱 香兰素 婴幼儿配方食品 |
Simultaneous determination of vanillin and ethyl vanillin in infant formulas using liquid chromatography tandem quadrupole mass spectrometry |
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| LUO Guan-zhong,LIU Xiang,MENG Yun-cai.Simultaneous determination of vanillin and ethyl vanillin in infant formulas using liquid chromatography tandem quadrupole mass spectrometry[J].Chinese Journal of Analysis Laboratory,2011,30(8):84-87. |
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| Authors: | LUO Guan-zhong LIU Xiang MENG Yun-cai |
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| Institution: | LUO Guan-zhong,LIU Xiang and MENG Yun-cai(Tianjin Product Quality Inspection Technology Research Institute,Tianjin 300384) |
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| Abstract: | A method is presented for the quantitative determination and confirmation of vanillin and ethyl vanillin in infant formulas by mixed anion-exchange solid phase extraction cartridge clean-up and liquid chromatography tandem quadrupole mass spectrometry(HPLC/MS/MS).Acetonitrile and water were used as extraction solvents,and CuSO4 solution was used to precipitate protein in the sample.And then the solubility of the target compound was obviously improved by adjusting pH with NaOH solution.An aliquot of the supe... |
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| Keywords: | Liquid chromatography Tandem quadrupole mass spectrometry Vanillin Infant formula |
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