Spectrophotometric Determination of Vancomycin Hydrochloride in Pharmaceutical Preparations through Diazotization and Coupling Reactions. Iraqi Journal of Science [Internet]. 2023 Oct. 22 [cited 2024 May 20];55(4B):1684-93. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11280