Potentiometric Determination of Palladium(II) in Aqueous Solutions Using a Modified Carbon-Paste Electrode

We studied the main electrode functions of carbon paste electrodes (CPEs) modified with 0-20% of dithiooxamidated polysiloxane with respect to palladium(II). The conditions for the potentiometric titration of palladium(II) using modified CPEs as indicator electrodes were selected, namely, pH 1-2, solutions of EDTA and potassium iodide as the titrants; and modifier concentration is 0, 5, and 10%. A procedure was developed for determining palladium(II) in aqueous solutions. The procedure was tested using a GSO solution of palladium(II) and an industrially produced activator Pd-600.
Author(s): A. S. Kholmogorova [sup.1], E. A. Svintsova [sup.1], L. K. Neudachina [sup.1], E. L. Lebedeva [sup.1], I. S. Puzyrev [sup.2] Author Affiliations: (1) grid.412761.7, 0000 0004 0645 736X, Ural [...]