Simultaneous determination of iron and copper using screen-printed carbon electrodes by adsorptive stripping voltammetry with o-phenanthroline


Ustabasi G. S. , Perez-Rafols C., Serrano N., Diaz-Cruz J. M.

MICROCHEMICAL JOURNAL, vol.179, 2022 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 179
  • Publication Date: 2022
  • Doi Number: 10.1016/j.microc.2022.107597
  • Journal Name: MICROCHEMICAL JOURNAL
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Food Science & Technology Abstracts, Index Islamicus, Veterinary Science Database
  • Keywords: Iron, Copper, Adsorptive stripping voltammetry, o-phenanthroline, Ferrocyanide, Screen-printed electrodes, HEAVY-METAL IONS, SEAWATER, EQUILIBRATION, SPECIATION, COMPLEXES, CADMIUM, CD(II), PB(II), CU(II), WATERS
  • Istanbul Technical University Affiliated: Yes

Abstract

The 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 mu g L-1 for iron and copper, respectively, and a linear response was observed from 12.5 to 400 mu g L-1 for iron and from 1.14 to 400 mu g 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.