title: The determination of lysine and ornithine using acid ninhydrin.
mesh_terms: D002845:Chromatography; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008239:Lysine / Q000032:analysis*; D009952:Ornithine / Q000032:analysis*; D013057:Spectrum Analysis
chemical_list: D007202:Indicators and Reagents; D009952:Ornithine; D008239:Lysine