Abstract
Long-chain halogen compounds obtained from soya bean oil and cod liver oil methyl esters by replacing the -CO 2Me groups with either -Cl, -Br or -I, can be separated into unsaturation classes by silica gel thin-layer chromatography with alkane mobile phases. These separations may be explained by considering the interactions of the halogen atoms and the olefinic π-electrons with the silanol groups of a silica surface. Gas—liquid chromatographic separation factors of these halogen compounds are found to be similar to those of the corresponding methyl esters, methyl ketones and acetates.
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