ISO 12966-2:2011 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 (GC), thin-layer chromatography (TLC), and infrared spectrometry (IR).
Document identifier
ISO 12966-2:2011
Title
Animal and vegetable fats and oils - Gas chromatography of fatty acid methyl esters - Part 2: Preparation of methyl esters of fatty acids
ISO Category
TC 34/SC 11: Animal and vegetable fats and oils
Publication date
2011-02-15
International Relationship
BS EN ISO 12966-2:2011 * DIN EN ISO 12966-2
History of version
ISO 12966-2:2017*ISO 12966-2:2011 * ISO 12966-2:2017 * ISO 12966-2:2011 * ISO 5509:2000
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103 vnd |
ISO 12966-2:2011
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