title: Replacement of glass wool pledgets with polyurethane filters for alumina column preparation in catecholamine analysis.
mesh_terms: D000535:Aluminum; D002845:Chromatography / Q000295:instrumentation; D004837:Epinephrine / Q000032:analysis* / Q000652:urine; D005069:Evaluation Studies as Topic; D005470:Fluorometry; D005898:Glass; D006801:Humans; D009638:Norepinephrine / Q000032:analysis* / Q000652:urine; D010087:Oxides; D011140:Polyurethanes
chemical_list: D010087:Oxides; D011140:Polyurethanes; D000535:Aluminum; D009638:Norepinephrine; D004837:Epinephrine