Spectrophotometric Determination of Thymol in Pharmaceutical Preparations Via Oxidative Coupling Reaction with 2,4- dinitrophenylhydrazine in the Presence of Potassium Periodate. Iraqi Journal of Science, [S. l.], v. 55, n. 1, p. 27–34, 2023. Disponível em: https://www.ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11921.. Acesso em: 3 aug. 2025.