HAKAN AKTAS, A.; PEKCAN, Hulya. Chemometric Methods for the Simultaneous Spectrophotometric Determination of Caffeine, Theobromine and Theophylline in Tea. Asian Journal of Chemistry, [S. l.], v. 25, n. 15, p. 8333–8338, 2013. DOI: 10.14233/ajchem.2013.14735. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/25_16_20. Acesso em: 6 may. 2024.