Determination of caffeine in DARK and Sparkling Drinks Determination of Casein in Milk. Applycation of the second derivative Spectophotometry. Revista Peruana de Química e Ingeniería Química, [S. l.], v. 4, n. 2, p. 72–77, 2001. Disponível em: https://revistasinvestigacion.unmsm.edu.pe/index.php/quim/article/view/4283.. Acesso em: 17 aug. 2024.