title: Assay of urinary 4-hdyroxy-3-methoxymandelic (vanillylmandelic) acid by liquid chromatography with electrochemical detection.
abstract: We describe a method for the assay of urinary 4-hydroxy-3-methoxymandelic acid (vanillylmandelic acid) based on separation on a microparticulate reversed-phase column and direct electrochemical detection. The method can be used after extraction from urine or by direct urine injection after 100-fold dilution.
mesh_terms: D000328:Adult; D002853:Chromatography, Liquid / Q000379:methods*; D004563:Electrochemistry; D006801:Humans; D009447:Neuroblastoma / Q000652:urine; D010673:Pheochromocytoma / Q000652:urine; D012016:Reference Values; D014642:Vanilmandelic Acid / Q000652:urine*
chemical_list: D014642:Vanilmandelic Acid