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首页> 外文期刊>Chinese science bulletin >Highly sensitive detection of melamine based on reversed phase liquid chromatography mass spectrometry
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Highly sensitive detection of melamine based on reversed phase liquid chromatography mass spectrometry

机译：反相液相色谱质谱法高灵敏度检测三聚氰胺

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摘要

In this work, we developed a highly sensitive method to detect melamine based on reversed phase liquid chromatography mass spectrometry. A mass spectrometry compatible ion pair, heptafluorobutyric acid(HFBA), was used to separate melamine by reversed phase liquid chromatography prior to electrospray mass spectrometry. The incorporation of isotope internal standard and multiple reaction monitoring improved the accuracy and linearity of quantification. Based on this strategy, the method limit of quantification was 0.1 ng/g. The limits of quantification were 8 ng/g for liquid milk and 15 ng/g for dry milk powder. This method provided a reproducible and stable approach to sensitive detection and quantification of melamine.
机译：在这项工作中，我们开发了一种基于反相液相色谱质谱法检测三聚氰胺的高灵敏度方法。在电喷雾质谱分析之前，使用质谱兼容的离子对七氟丁酸（HFBA）通过反相液相色谱分离三聚氰胺。同位素内标和多反应监测的结合提高了定量的准确性和线性。基于该策略，方法的定量限为0.1 ng / g。液态奶的定量限为8 ng / g，干奶粉的定量限为15 ng / g。该方法为灵敏的检测和定量三聚氰胺提供了一种可再现且稳定的方法。

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