ISO 18363-4:2021 动植物脂肪和油 用GC/MS测定脂肪酸结合的氯丙二醇（MCPD）和缩水甘油 第4部分：快速碱性酯交换法和用GC-MS/MS测定2-MCPD，3-MCPD和缩水甘油

标准编号：ISO 18363-4:2021

中文名称：动植物脂肪和油 用GC/MS测定脂肪酸结合的氯丙二醇（MCPD）和缩水甘油 第4部分：快速碱性酯交换法和用GC-MS/MS测定2-MCPD，3-MCPD和缩水甘油

英文名称：Animal and vegetable fats and oils — Determination of fatty-acid-bound chloropropanediols (MCPDs) and glycidol by GC/MS — Part 4: Method using fast alkaline transesterification and measurement for 2-M

发布日期：2021-08

标准范围

This document specifies a rapid procedure for the simultaneous determination of 2-MCPD esters (bound 2-MCPD), 3-MCPD esters (bound 3-MCPD) and glycidyl esters (bound glycidol) in a single assay, based on alkaline catalysed ester cleavage and derivatization of cleaved (free) analytes with phenylboronic acid (PBA) prior to GC-MS/MS analysis. Glycidyl ester overestimation is corrected by addition of an isotopic labelled ester bound 3-MCPD which allows the quantification of 3-MCPD induced glycidol during the procedure.

标准预览图