Comparative application of biological and ninhydrinderivatized spectrophotometric assays in the evaluation and validation of amikacin sulfate injection. Brazilian Journal of Pharmaceutical Sciences, [S. l.], v. 58, 2023. DOI: 10.1590/s2175-97902022e201185. Disponível em: https://periodicos.usp.br/bjps/article/view/207719.. Acesso em: 10 jun. 2024.