Ustabasi, Gul S.Pérez Ràfols, ClaraSerrano i Plana, NúriaDíaz Cruz, José Manuel2022-10-032022-10-032022-08-010026-265Xhttps://hdl.handle.net/2445/189554The simultaneous voltammetric determination of iron and copper was accomplished by an unmodified screen-printed carbon electrode based on the complexation with o-phenanthroline assisted by the reducing agent ferrocyanide. The detection limits were 3.74 and 0.34 µg L−1 for iron and copper, respectively, and a linear response was observed from 12.5 to 400 µg L−1 for iron and from 1.14 to 400 µg L−1 for copper. This method successfully avoids interferences between iron and copper while allowing the simultaneous determination of both low and high metal concentrations usually found in the environment. Finally, a certified wastewater reference material was successfully analyzed, confirming the precision and accuracy of the proposed method.application/pdfengcc-by-nc-nd (c) Ustabasi, Gul S. et al., 2022https://creativecommons.org/licenses/by-nc-nd/4.0/VoltametriaFerroMedi ambientVoltammetryIronNatural environmentinfo:eu-repo/semantics/article7234832022-10-03info:eu-repo/semantics/openAccess