Spectrophotometric Determination of Vancomycin Hydrochloride (Batch and Flow-Injection) Using O-Nitroaniline as diazotized Chromogenic Reagent. Iraqi Journal of Science [Internet]. 2023 Feb. 8 [cited 2024 May 19];56(4B):3025-3. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9341