Citation: E. Norfolk et al., COMPARISON OF AMINO-ACID SEPARATIONS ON HIGH-PERFORMANCE SILICA-GEL, CELLULOSE, AND C-18 REVERSED-PHASE LAYERS AND APPLICATION OF HPTLC TO THE DETERMINATION OF AMINO-ACIDS IN BIOMPHALARIA-GLABRATA SNAILS, Journal of liquid chromatography, 17(6), 1994, pp. 1317-1326