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 [Internet]. 2018 Nov. 1 [cited 2025 Jun. 27];15(11):429-34. Available from: https://ignited.in/index.php/jasrae/article/view/9082