The Effect of Acetonitrile Solvent on the Quantitative Determination of Europium (III) by Voltammetry and its Optimization using the Box-Behnken Design. Valensi [Internet]. 2022 May 26 [cited 2025 Dec. 22];8(1):69-78. Available from: https://journal.uinjkt.ac.id/valensi/article/view/22508