title: An improved technique for the determination of plasma alpha-amino nitrogen.
mesh_terms: D000596:Amino Acids / Q000097:blood*; D003124:Colorimetry / Q000379:methods; D006801:Humans; D007202:Indicators and Reagents; D009285:Naphthoquinones; D009555:Ninhydrin
chemical_list: D000596:Amino Acids; D007202:Indicators and Reagents; D009285:Naphthoquinones; D009555:Ninhydrin