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BS EN ISO 12966-2:2017

BS EN ISO 12966-2:2017

$142.49

Animal and vegetable fats and oils. Gas chromatography of fatty acid methyl esters – Preparation of methyl esters of fatty acids

Published By Publication Date Number of Pages
BSI 2017 28
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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:

  1. a ā€œrapidā€ transmethylation procedure under alkaline conditions;

  2. a ā€œgeneralā€ transmethylation/methylation procedure under sequential alkaline and acid conditions;

  3. a BF3 transmethylation procedure;

  4. 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.

PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 Introduction
11 1 Scope
2 Normative references
3 Terms and definitions
4 Reactions
12 5 Methodology
5.1 Preparation of test sample
5.2 Rapid method
5.2.1 Applicability
5.2.2 Principle
13 5.2.3 Reagents
5.2.4 Apparatus
5.2.5 Procedure
14 5.3 General method
5.3.1 Applicability
5.3.2 Principle
5.3.3 Reagents
15 5.3.4 Apparatus and materials
5.3.5 Procedure
16 5.4 Transmethylation using boron trifluoride (BF3) catalyst
5.4.1 Principle
5.4.2 Applicability
5.4.3 Reagents
17 5.4.4 Apparatus
18 5.4.5 Procedure
19 5.5 Acid-catalysed transmethylation of glycerides
5.5.1 Principle
5.5.2 Reagents
20 5.5.3 Apparatus
5.5.4 Preparation of test sample
5.5.5 Procedure
21 AnnexĀ A (informative) Thin-layer chromatography method for testing the completeness of derivatization
25 Bibliography

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BS EN ISO 12966-2:2017
$142.49