Normal and Reverse Flow Injection- Spectrophotometric Determination of Vancomycin Hydrochloride in Pharmaceutical Preparations Using 2, 4-Dinitrophenylhydrazine. Iraqi Journal of Science, [S. l.], v. 55, n. 2B, p. 623–633, 2023. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11742.. Acesso em: 17 apr. 2025.