Better Colorimetric Reserpine Determination in Tablets with 4- Caboxyl-2,6-dintrobenzene diazonium ion (CDNBD) Utilization. International Journal of Pharmacetical Sciences Letters, [S. l.], v. 10, n. 4, p. 7–13, 2024. Disponível em: https://ijpsl.org/index.php/ijpls/article/view/13. Acesso em: 14 oct. 2026.