“Chemiluminometric- CFIA for the Determination of Cobalt (ll) Ion in Commercial Cobalt-Molybdenum Catalyst (K F124-3E) Used in Desulphurization Processes of Petroleum Products via Multi Gel Beads Reactor”. 2023. Iraqi Journal of Science 56 (1A): 38-52. https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/10594.