New Approach for the On-Line Spectrophotometric Determination of Folic Acid in Pure and Pharmaceutical Preparation via Oxidation by Cerium(IV) Sulphate Using Ayah 3Sx3-3D-Solar Cell CFI Spectrophotometer Analyzer. Iraqi Journal of Science. 2023;55(3B):1153-1163. Accessed May 20, 2024. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11541