Argentation thin-layer chromatography of fatty acid methyl esters on Silufol uv 254 sheets

Silver ion chromatography of lipids and fatty acids

Silver ion chromatography as applied to the analysis of lipids is reviewed. Thin-layer, column, high-performance liquid and supercritical fluid chromatography in the silver ion mode are included. The lipid types covered are fatty acids, triacylglycerols and complex lipids. Separations are divided into those according to number, geometry and position of double bonds, as well as acyl positional isomers for triacylglycerols. The mechanism of silver ion chromatography is discussed in relation to recent studies using silver ion high-performance liquid chromatographic methodology.

Improved separation of lipid esters by thin-layer chromatography

Methods for the separation of ethyl- and 2-chloroethyl esters of fatty acids using argentation thin-layer chromatography (TLC) and linear and circular reversed-phase TLC are described. An argentation TLC method for the separation of cholesterol esters is also described. The separation is based on the degree of unsaturation in the fatty acid moiety. In all instances good and reproducible resolution was achieved by unidirectional single developments at room temperature with reduced analysis times (9 min for argentation TLC, 7 min for circular reversed-phase TLC).