ASCI, B.; DONMEZ, O.A.; OZGUR, M.U. Simultaneous Determination of Colourant Mixtures Used in Pharmaceuticals by Derivative UV-Spectrophotometry. Asian Journal of Chemistry, [S. l.], v. 22, n. 7, p. 5672–5678, 2010. Disponível em: https://asianpubs.org/index.php/ajchem/article/view/31712. Acesso em: 3 jul. 2024.