TY - RPRT TI - An improved qualitative, monodimensional thin-layer chromatography for amino acids, using mixed layers of silica gel and cellulose and a combination of solvent systems. AU - C F Van Sumere AU - J Cottenie AU - H Teuchy PY - 1968 UR - https://pubmed.ncbi.nlm.nih.gov/4184452/ ID - 4184452 ER -