Monatshefte für Chemie - Chemical Monthly

, Volume 151, Issue 1, pp 45–50 | Cite as

Electrocatalytic oxidation of zearalenone on cobalt phthalocyanine-modified screen-printed carbon electrode

  • Abd-Elgawad RadiEmail author
  • Alsayed Eissa
  • Tarek Wahdan
Original Paper


The intake of food contaminated with zearalenone may prompt fertility disorders. Cobalt phthalocyanine (CoPC) could afford electrocatalytic efficiently toward a large number of analytes. In this regard, cyclic voltammetry and differential pulse voltammetry were utilized to examine the anodic behavior of zearalenone on cobalt CoPC-modified screen-printed carbon electrode (CoPC-SPCE). The results demonstrated that the CoPC-SPCEs had excellent electrocatalytic activity, involving the Co2+/Co3+ redox couple, toward the electrochemical oxidation of zearalenone. Using differential pulse voltammetry, the CoPC-SPCE exhibited a well-defined anodic peak in phosphate buffer solution of pH 7.4 at a potential of ~ 0.534 V versus Ag pseudo-ref. electrode for the oxidation of zearalenone. After optimization of the experimental conditions, a linear calibration curve over zearalenone concentration range 25–400 ng cm−3 with detection limit of 0.15 ng cm−3 was achieved. The CoPC-SPCEs accomplished excellent sensitivity, selectivity, and stability for the voltammetric determination of zearalenone in the presence of other mycotoxins. It was satisfactorily determined in food samples.

Graphic abstract


Electrocatalysis Zearalenone Cobalt phthalocyanine Screen-printed carbon electrode Voltammetry 



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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2019

Authors and Affiliations

  1. 1.Department of Chemistry, Faculty of ScienceDamietta UniversityDamiettaEgypt
  2. 2.Department of Chemistry, Faculty of ScienceEl-Arish UniversityEl-ArishEgypt

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