Paper Chromatography of Some Tissue Amines

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Abstract
When solutions of adrenaline, noradrenaline, histamine, 5-hydroxy-tryptamine and related amines in trichloroacetic, trifluoroacetic or picric acid are chromatographed in various organic solvent systems, the active material divides into two areas. If a basic amino acid is included in the solution before chromatography, the separation becomes more complete. It is suggested that the second area consists of a loose complex between the amine and the corresponding acid. When solutions of the amines in hydrochloric, acetic or oxalic acid are chromatographed, the active material resides only in one area.