title: Urinary oxalate estimation.
abstract: A method of estimating urinary oxalate is described. Impurities which might otherwise interfere with the estimation are removed by means of an ion-exchange resin. The oxalate is then reduced to glycolic acid, which forms a coloured compound with chromotropic acid. It can then be estimated colorimetrically. No special equipment is required, oxalate recovery is good, and the method is reproducible and precise.
mesh_terms: D002852:Chromatography, Ion Exchange; D003124:Colorimetry; D006801:Humans; D008722:Methods; D010070:Oxalates / Q000652:urine*
chemical_list: D010070:Oxalates