Separation and Determination of Fatty Acid Mono- and Diesters of Monochloropropane-1,2-diol in Fat-rich Foods

文献类型： 外文期刊

第一作者： Fu Wu-Sheng

作者： Fu Wu-Sheng;Tang Chang-Dong;Wu Shao-Ming;Hua Juan;Wu Yong-Ning;Fang Qin-Mei;Fu Wu-Sheng;Fu Wu-Sheng;Wu Shao-Ming

作者机构：

关键词： Fatty acid;3-Chloropropane-1, 2-diol monoesters;3-Chloropropane-1, 2-diol Diesters;2-Chloropropane-1,3-diol monoesters;2-Chloropropane-1,3-diol diesters;Edible oil;Infant formulapowder;Gas chromatography-mass spectrometry;Solid phase extraction

期刊名称：CHINESE JOURNAL OF ANALYTICAL CHEMISTRY （ 影响因子：1.134； 五年影响因子：0.909 ）

ISSN： 0253-3820

年卷期： 2014 年 42 卷 4 期

页码：

收录情况： SCI

摘要： A new method for the determination of fatty acid mono- and diesters of monochloropropanediol (MCPD) was developed. The isotopically labelled standard solution was added to the sample solution and adsorbed on the aminopropyl column. Then MCPD diesters were eluted by 6. 0 mL n-hexane and MCPD monoesters were eluted by a 6. 0 ml mixture of n-hexane/ethylacetate (7:3, V/V). The concentratrated elution were hydrolyzed with methoxide and derivatizated with phenylboronic acid (PBA) before GC/MS analysis. The method was precise and sensitive, the limits of detection for MCPD monoesters and MCPD diesters were 83. 0 mu g/kg and 142 mu g/kg, respectively. There was an excellent linear correlation (R-2 > 0. 9990) in the range of 25-500 mu g/L of MCPD monoesters & diesters (calculated by MCPD). The recovery rate of MCPD fatty acid esters spiked into edible oil and infant formula samples was in the range of 86. 5% - 104. 0%. The relative standard deviation (RSD) was from 2. 4% to 13. 2%. The method was successfully applied to the analysis of commercial edible oils and infant formula samples.

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