A new g.c. procedure, based on nitrosation, for the simultaneous determination of propoxyphene and norpropoxyphene in biological material.
D002849:Chromatography, Gas; D003042:Cocaine; D011431:Dextropropoxyphene / Q000031:analogs & derivatives* / Q000032:analysis*; D008722:Methods; D009603:Nitroso Compounds / Q000138:chemical synthesis
D009603:Nitroso Compounds; D003042:Cocaine; D011431:Dextropropoxyphene