Sensitive Spectrophotometric Determination of Tetracycline Hydrochloride Indosage forms using Sodium Nitroprusside and Hydroxylamine Hydrochloride. Al-Nahrain Journal of Science, [S. l.], v. 17, n. 3, p. 53–58, 2018. Disponível em: https://anjs.edu.iq/index.php/anjs/article/view/404. Acesso em: 9 apr. 2025.