title: Quantitation of caffeine in doping analysis using an automated extractor/concentrator.
mesh_terms: D001322:Autoanalysis; D002110:Caffeine / Q000032:analysis* / Q000652:urine; D002849:Chromatography, Gas; D002851:Chromatography, High Pressure Liquid; D004300:Doping in Sports; D006801:Humans; D007700:Kinetics
chemical_list: D002110:Caffeine