Mulyasuryani, A. and Ponco Prananto, Y. 2025. Modification of Screen-Printed Carbon Electrode (SPCE) by Magnetic Fe3O4-Chitosan for Detection of Hexavalent Chromium . Indonesian Journal of Chemical Analysis (IJCA). 8, 1 (Mar. 2025), 84–92. DOI:https://doi.org/10.20885/ijca.vol8.iss1.art8.