title: Spectrophotometric assay of phenolpthalein in biological fluids.
mesh_terms: D003116:Color; D006801:Humans; D007419:Intestinal Secretions / Q000032:analysis; D010635:Phenolphthaleins / Q000032:analysis* / Q000097:blood / Q000652:urine; D013053:Spectrophotometry / Q000379:methods
chemical_list: D010635:Phenolphthaleins