title: Use of Toluidine Blue for sequential staining of urinary amino acid chromatograms.
mesh_terms: D000596:Amino Acids / Q000652:urine*; D002854:Chromatography, Paper; D004396:Coloring Agents; D006025:Glycosaminoglycans / Q000652:urine*; D006801:Humans; D007192:Indenes; D007202:Indicators and Reagents; D007659:Ketones; D008661:Metabolism, Inborn Errors / Q000652:urine; D013194:Staining and Labeling
chemical_list: D000596:Amino Acids; D004396:Coloring Agents; D006025:Glycosaminoglycans; D007192:Indenes; D007202:Indicators and Reagents; D007659:Ketones