title: Quantitation of sputum protein by use of the biuret reaction.
mesh_terms: D004492:Edetic Acid; D006801:Humans; D006863:Hydrogen-Ion Concentration; D008722:Methods; D009584:Nitrogen / Q000032:analysis; D011506:Proteins / Q000032:analysis*; D013183:Sputum / Q000032:analysis*; D013431:Sulfates; D014508:Urea; D015032:Zinc
chemical_list: D011506:Proteins; D013431:Sulfates; D014508:Urea; D004492:Edetic Acid; D015032:Zinc; D009584:Nitrogen