Valero M, García Villanova R, Thomas J. Comparative study of nicotine titrations by the colorimetric method of the complex formed with naphthylamine and BrCN, and by the spectrophotometric method in the ultraviolet. Ars Pharm [Internet]. 20 de febrero de 1965 [citado 22 de julio de 2024];6(3-4):95-111. Disponible en: https://revistaseug.ugr.es/index.php/ars/article/view/7570