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11. Determination of caffeine, theobromine, and theophylline in standard reference material 2384, baking chocolate, using reversed-phase liquid chromatography. Thomas JB, Yen JH, Schantz MM, Porter BJ, Sharpless KE. J Agric Food Chem; 2004 Jun 02; 52(11):3259-63. PubMed ID: 15161179 [Abstract] [Full Text] [Related]
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