title: Automatic on-line extraction coupled with electrochemical detection as an improved method for the HPLC co-analysis of codeine and morphine in plasma and gastric juice.
authors.affiliation: Department of Clinical Pharmacology, St Bartholomews Hospital Medical College, Little Britain, London, UK.
authors.forename: W M
authors.initials: WM
authors.lastname: Heybroek
authors.forename: M
authors.initials: M
authors.lastname: Caulfield
authors.forename: A
authors.initials: A
authors.lastname: Johnston
authors.forename: P
authors.initials: P
authors.lastname: Turner
mesh_terms: D001322:Autoanalysis; D002851:Chromatography, High Pressure Liquid; D003061:Codeine / Q000032:analysis* / Q000097:blood; D004563:Electrochemistry; D005750:Gastric Juice / Q000737:chemistry*; D006801:Humans; D009020:Morphine / Q000032:analysis* / Q000097:blood
chemical_list: D009020:Morphine; D003061:Codeine