title: Simplified colorimetry of alpha-amino nitrogen in plasma, serum, or urine.
mesh_terms: D000328:Adult; D000596:Amino Acids / Q000032:analysis*; D003124:Colorimetry; D005069:Evaluation Studies as Topic; D006801:Humans; D007202:Indicators and Reagents; D008722:Methods; D009555:Ninhydrin; D010949:Plasma / Q000032:analysis; D011809:Quinones; D012044:Regression Analysis
chemical_list: D000596:Amino Acids; D007202:Indicators and Reagents; D011809:Quinones; D009555:Ninhydrin