title: Separation of ninhydrin-positive compounds on a single-column amino acid analyzer using lithium buffers.
mesh_terms: D000596:Amino Acids / Q000302:isolation & purification*; D002021:Buffers; D002852:Chromatography, Ion Exchange; D008094:Lithium; D009555:Ninhydrin; D009842:Oligopeptides / Q000302:isolation & purification*; D010406:Penicillins / Q000302:isolation & purification*; D010936:Plant Extracts / Q000032:analysis
chemical_list: D000596:Amino Acids; D002021:Buffers; D009842:Oligopeptides; D010406:Penicillins; D010936:Plant Extracts; D008094:Lithium; D009555:Ninhydrin