title: Specific photometric determination of 5-hydroxyindoleacetic acid in urine.
mesh_terms: D003116:Color; D005069:Evaluation Studies as Topic; D005260:Female; D006139:Guaiacol / Q000652:urine; D006801:Humans; D006863:Hydrogen-Ion Concentration; D006897:Hydroxyindoleacetic Acid / Q000652:urine*; D007414:Intestinal Neoplasms / Q000175:diagnosis / Q000652:urine; D008297:Male; D008303:Malignant Carcinoid Syndrome / Q000175:diagnosis / Q000652:urine; D008623:Mercaptoethanol; D008722:Methods; D009284:Naphthols; D009573:Nitrites; D009603:Nitroso Compounds; D010636:Phenols / Q000652:urine; D010783:Photometry; D012995:Solubility; D013053:Spectrophotometry; D013696:Temperature; D013997:Time Factors
chemical_list: D009284:Naphthols; D009573:Nitrites; D009603:Nitroso Compounds; D010636:Phenols; D006897:Hydroxyindoleacetic Acid; D008623:Mercaptoethanol; D006139:Guaiacol