Spectrophotometric determination of promethazine hydrochloride by oxidative coupling reaction using sulfacetamide sodium as a coupling agent. Samarra Journal of Pure and Applied Science, [S. l.], v. 6, n. 2/2, p. 1–16, 2024. DOI: 10.54153/sjpas.2024.v6i2/2.595. Disponível em: https://sjpas.com/index.php/sjpas/article/view/595. Acesso em: 16 apr. 2026.