Paper Chromatographic Analysis of Amino Acids and other Ninhydrin-Reacting Substances in Deproteinized Human Plasma.

Abstract
Alpha-alanine, alpha-n-butyric acid, arginine, asparagine, aspartic acid, citrulline, glutamine, glutamic acid, glycine, histidine, isoleucine, leucine, lysine, ornithine, phenylalanine, proline, serine, threonine, tryptophan, tyrosine, valine, 2 peptides, taurine, and an unidentified spot were established in deproteinized human plasma. A map was prepared which gives the position of these 25 substances and 10 other biologically occurring, ninhydrin-positive substances.
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