The adsorption of aspartic acid and glycine on sparingly soluble inorganic solids

Abstract

An investigation has been made of the adsorption of aspartic acid and glycine on a series of natural and synthetic sparingly soluble inorganic solids. The amino acids have been analysed by a photographic development of the Fisher-Parsons-Morrison relationship found to exist for paper chromatograms. Aspartic acid was found to be adsorbed in greater amounts than glycine. Natural samples showed higher adsorptive capacities for both acids than did the synthetic samples. Adsorption capacities of the solids investigated were considerably higher than those found by previous workers for similar solids. No correlation has been found between adsorptive capacities and known electrokinetic properties of the adsorbents.