title: OBSERVATIONS ON THE NINHYDRIN-POSITIVE SUBSTANCES IN HUMAN URINE.
mesh_terms: D000596:Amino Acids; D001826:Body Fluids; D002845:Chromatography; D006801:Humans; D007202:Indicators and Reagents; D009555:Ninhydrin; D014556:Urine
chemical_list: D000596:Amino Acids; D007202:Indicators and Reagents; D009555:Ninhydrin
keywords: AMINO ACIDS; CHROMATOGRAPHY; INDICATORS AND REAGENTS; URINE