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, [S. l.], v. 55, n. 3B, p. 1153–1163, 2023. Disponível em: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/11541.. Acesso em: 20 may. 2024.