Determination of bisphenol A in real samples using modified graphite screen-printed electrode

ABSTRACT

The electrochemical behaviour of bisphenol A at modified graphite screen-printed electrode was studied using voltammetric technique. The prepared La³⁺/ZnO nanoflowers modified graphite screen-printed electrode (La³⁺/ZnO NFs/GSPE) exhibited more facile electron kinetics and enhanced current of about 2.5 when compared to the unmodified GSPE. Under optimum conditions, the La³⁺/ZnO NFs/GSPE detects the bisphenol A in the linear response ranging from 0.8 to 300.0 μM with a low limit of detection of 0.25 µM. Also, chronoamperometry was used to determine the diffusion coefficient (D = 1.1 × 10⁻⁵cm²/s). The method was successfully applied to the determination of bisphenol Ain real samples.

KEYWORDS:

• Electrochemical behaviour
• bisphenol A
• graphite screen-printed electrode
• voltammetric technique
• La³⁺/ZnO nanoflowers

Disclosure statement

No potential conflict of interest was reported by the author(s).