MEMON, Ayaz Ali. Development of Colorimetric Method for the Quantitative Analysis of Amlodipine Besylate in Dosage form Using 4- Dimethyleaminobenzaldehyde as Derivatizing Reagent. Pakistan Journal of Analytical & Environmental Chemistry, [S.l.], v. 21, n. 1, p. 27-33, june 2020. ISSN 2221-5255. Available at: <http://www.pjaec.pk/index.php/pjaec/article/view/617>. Date accessed: 22 oct. 2020. doi: http://dx.doi.org/10.21743/pjaec/2020.06.04.