TLC Separations of Amino Acids on Silica Gel Impregnated Layers

Abstract
Copper sulfate and polyamide were tried as impregnants for improving the separation of 20 amino acids on silica gel ''G'' layers using a new solvent system MeOH-BuOAc-AcOH-pyridine (20:20:10:5). Tables are presented to illustrate the improvement in resolution of amino acids on silica gel plates.