title: A new titrimetric procedure for determination of nitrate utilizing hypochlorite oxidation of an azo dye.
mesh_terms: D001391:Azo Compounds; D008722:Methods; D009566:Nitrates / Q000032:analysis*; D010084:Oxidation-Reduction; D012973:Sodium Hypochlorite; D013053:Spectrophotometry
chemical_list: D001391:Azo Compounds; D009566:Nitrates; D012973:Sodium Hypochlorite