现代食品科技2018，Vol.34Issue(4)：242-248,257,8.DOI:10.13982/j.mfst.1673-9078.2018.04.036
气相色谱-串联质谱法同时测定食品中的氯丙醇酯和缩水甘油酯
Simultaneous Determination of Chloropropanolate and Glycidyl Ester in Food by Gas Chromatography-Tandem Mass Spectrometry
摘要
Abstract
A gas chromatography-tandem mass spectrometry (GC-MS/MS) method was established for the simultaneous determination of 3-chloropropanol ester (3-MCPDE), 2-chloropropanol ester (2-MCPDE) and gycidyl ester (GE) in various fatty foods in this study. The 3-MCPDE, 2-MCPDE and GE in vegetable oils, bakery foods, fried-puffed foods and milk powder were determined by GC-MS/MS after the optimization of extraction, transesterification and derivatization of samples and conditions of GC-MS/MS. The limits of quantitation (LOQs) of the four types of food products were 10, 20, 50 and 100 μg/kg, respectively, and the total mean recoveries were in the range of 68. 9％ 116. 5％ with the relative standard deviation (RSD n=6) of 2. 11％13. 90％. The results showed that the samples had good linear correlation within a wide linear range, and the correlation coefficients (R) were higher than 0. 99. The proposed method had the advantages of high extraction efficiency, good purification effect, high detection sensitivity and accuracy, which could be used for qualitative and quantitative determination of 3-MCPDE, 2-MCPDE and GE in vegetable oils, milk powder, fried-puffed foods and bakery foods.关键词
气相色谱-串联质谱法/3-氯丙醇酯/缩水甘油酯/2-氯丙醇酯Key words
GC-MS/MS/3-chloropropanol ester/gycidyl ester/2-chloropropanol ester引用本文复制引用
刘青,阮君,曾广丰,张洋子,魏文心,王志元,陈文锐,康文昱..气相色谱-串联质谱法同时测定食品中的氯丙醇酯和缩水甘油酯[J].现代食品科技,2018,34(4):242-248,257,8.基金项目
国家质检总局科技计划项目(2015IK061) （2015IK061）
