High-performance liquid chromatographic determination of theobromine, theophylline and caffeine in food products.
D001628:Beverages / Q000032:analysis; D002099:Cacao / Q000032:analysis; D002110:Caffeine / Q000032:analysis*; D002182:Candy / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003069:Coffee / Q000032:analysis; D006863:Hydrogen-Ion Concentration; D013805:Theobromine / Q000032:analysis*; D013806:Theophylline / Q000032:analysis*
D003069:Coffee; D002110:Caffeine; D013806:Theophylline; D013805:Theobromine