Spectrophotometric Determination of Thymol in Pharmaceutical Preparations Via Oxidative Coupling Reaction with 2,4- dinitrophenylhydrazine in the Presence of Potassium Periodate. (2023). Iraqi Journal of Science, 55(1), 27-34. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11921