title: [Improved method for determination of aminonitrogen].
mesh_terms: D000596:Amino Acids / Q000032:analysis*; D004355:Drug Stability; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008722:Methods; D009285:Naphthoquinones; D009584:Nitrogen / Q000032:analysis*; D010455:Peptides / Q000032:analysis*; D013451:Sulfonic Acids
chemical_list: D000596:Amino Acids; D007202:Indicators and Reagents; D009285:Naphthoquinones; D010455:Peptides; D013451:Sulfonic Acids; D009584:Nitrogen
vernacular_title: Eine verbesserte Methode zur Bestimmung von Aminostickstoff.