Spectrophotometric Determination of Zn(II) in Pharmaceuticals Using (Di Amino di Hydroxy Pyrimidine) as Complexing Agent: A novel spectrophotometric method for the determination of Zn(II) in pharmaceuticals using a chelating agent. JASRAE. 2018;15(11):429-434. Accessed June 27, 2025. https://ignited.in/index.php/jasrae/article/view/9082