Erucic Acid in Edible Fats and Oils: A Collaborative Study on Determination by Open-Tubular (Capillary) Gas-Liquid Chromatography

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Abstract
An open-tubular (capillary) column gas-liquid chromatographic method for the determination of the specific isomer of docosenoic acid known as erucic acid (cis-docos-13-enoic) in the presence of other docosenoic acid isomers present in partially hydrogenated marine oils has been evaluated collaboratively. With wall-coated columns and the liquid phase SILAR-5CP, nine laboratories successfully analysed mixtures of partially hydrogenated marine oils, corn oil and rapeseed oil with a nominal content of 10% erucic acid, compatible with the regulations of the European Economic Community.