title: Gas chromatographic assay of codeine in human plasma utilizing nitrogen-selective detection.
mesh_terms: D000328:Adult; D001682:Biological Availability; D002849:Chromatography, Gas / Q000379:methods; D003061:Codeine / Q000097:blood*; D006801:Humans; D007700:Kinetics; D008297:Male; D009584:Nitrogen
chemical_list: D009584:Nitrogen; D003061:Codeine