Voltammetric Determination of Bisphenol A in Water and Juice Using a Lanthanum (III)-Doped Cobalt (II,III) Nanocube Modified Carbon Screen-Printed Electrode

Abstract

A La³⁺ doped Co₃O₄ nanocube modified graphite screen-printed electrode (La³⁺-doped Co₃O₄ nanocube/SPE) was prepared and utilized for the sensitive voltammetric determination of bisphenol A. In comparison with an unmodified electrode, the presence of the La³⁺ doped Co₃O₄ nanocubes caused a significant enhancement in the peak current. Differential pulse voltammetry (DPV), cyclic voltammetry (CV), and chronoamperometry approaches were utilized as diagnostic methods. The modified SPE was used to determine bisphenol A concentrations in the range from 0.5 to 900.0 μM with a limit of detection equal to 6.1 × 10⁻⁸ M. Real samples were effectively analyzed with the modified electrode.

Keywords:

• Bisphenol A (BPA)
• cyclic voltammetry (CV)
• differential pulse voltammetry (DPV)
• La³⁺-doped Co₃O₄ nanocubes
• screen-printed electrode

Conflicts of interest

The authors declare that they have no conflicts of interest.