title: TRIS (HYDROXYMETHYL) AMINOMETHANE AS A STANDARD FOR KJELDAHL NITROGEN ANALYSIS.
mesh_terms: D002623:Chemistry Techniques, Analytical; D007202:Indicators and Reagents; D008744:Methylamines; D009584:Nitrogen; D014325:Tromethamine
chemical_list: D007202:Indicators and Reagents; D008744:Methylamines; D014325:Tromethamine; C027451:methylamine; D009584:Nitrogen
keywords: CHEMISTRY, ANALYTICAL; INDICATORS AND REAGENTS; NITROGEN; TROMETHAMINE