“Spectrophotometric Determination of Vancomycin Hydrochloride (Batch and Flow-Injection) Using O-Nitroaniline as diazotized Chromogenic Reagent” (2023) Iraqi Journal of Science, 56(4B), pp. 3025–3035. Available at: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/9341 (Accessed: 19 May 2024).