title: A radioenzymatic assay for femtomole determination of catecholamines using alpha-methyldopamine as an internal standard.
mesh_terms: D000818:Animals; D002394:Catechol O-Methyltransferase; D003846:Deoxyepinephrine / Q000031:analogs & derivatives* / Q000032:analysis / Q000097:blood; D004298:Dopamine / Q000031:analogs & derivatives / Q000097:blood; D004837:Epinephrine / Q000097:blood; D006168:Guinea Pigs; D006801:Humans; D008832:Microchemistry; D009638:Norepinephrine / Q000097:blood; D011817:Rabbits; D012160:Retina / Q000032:analysis; D012756:Sheep
chemical_list: C023492:alpha-methyldopamine; D002394:Catechol O-Methyltransferase; D003846:Deoxyepinephrine; D004298:Dopamine; D009638:Norepinephrine; D004837:Epinephrine