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 [Internet]. 2023 Dec. 8 [cited 2024 May 19];55(1):27-34. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11921