Spectrophotometric Determination of Sulfathiazole Using 2,4 –dinitrophenylhydrazine as Coupling Reagent. Ibn AL-Haitham Journal For Pure and Applied Sciences, [S. l.], v. 29, n. 2, p. 227–239, 2017. Disponível em: https://jih.uobaghdad.edu.iq/index.php/j/article/view/112.. Acesso em: 2 may. 2024.