ISO 12966-2:2017
动物和植物的脂肪和油脂.脂肪酸甲基酯的气相色谱分析.第2部分:脂肪酸甲酯的制备

Animal and vegetable fats and oils - Gas chromatography of fatty acid methyl esters - Part 2: Preparation of methyl esters of fatty acids


标准号
ISO 12966-2:2017
发布
2017年
发布单位
国际标准化组织
当前最新
ISO 12966-2:2017
 
 
引用标准
ISO 1042:1998 ISO 3696:1987 ISO 4799:1978 ISO 4800:1998 ISO 661:2003 ISO 78-2:1999 ISO 835:2007 ISO 8655-2:2002
适用范围
This document specifies methods of preparing the methyl esters of fatty acids. It includes methods for preparing fatty acid methyl esters from animal and vegetable fats and oils, fatty acids and soaps. To cover different requirements, four methylation methods are specified, namely: a) a “rapid” transmethylation procedure under alkaline conditions; b) a “general” transmethylation/methylation procedure under sequential alkaline and acid conditions; c) a BF3 transmethylation procedure; d) an alternative procedure using acid-catalysed transmethylation of glycerides. Methyl esters so produced are used in various analytical procedures requiring such derivatives, e.g. gas-liquid chromatography (GLC), thin-layer chromatography (TLC) and infrared spectrometry (IR). Milk and milk products (or fat coming from milk and milk products) are excluded from the scope of this document.

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