Abstract
A technique for separating methyl esters of monounsaturated fatty acids by argentation chromatography using silver nitrate-impregnated TLC plates is described. Monounsaturated fatty acid methyl esters are separated from polyunsaturated and saturated fatty acid methyl esters and the monounsaturated fatty methyl esters are resolved according to chain length. cis isomers are well resolved from the corresponding trans isomers. R F values for individual monounsaturated fatty acids are very reproducible. The potential of the technique in metabolic studies is demonstrated in the chain elongation of [ 14C]-18:1( n−9) and delta-9 desaturation of [ 14C]-18:0 by human skin fibroblasts. Recoveries of individual [ 14C]-fatty acids for scintillation counting exceed 94%.
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