Work

Electrochemical detection of hydroquinone using yttrium oxide-nafion modified glassy carbon electrodes

Year: 2025

Type: article

Abstract: In this article, we report for the first time a novel method for developing modified electrodes using only yttrium oxide and Nafion on glassy carbon (N-Y OX /GCE) as well as the application of this method for detecting hydroquinone (HQ). Cyclic voltammetry (CV) and scanning electron microscopy (SEM) were used to characterize the surface and activity of N-Y OX /GCE. This simple electrode showed higher selectivity for the electrooxidation of HQ than catechol, with a limit of detection of 1.0 µmol/L under acidic conditions. The utility of the sensor was tested with real samples of human urine and drinking water spiked with hydroquinone.

Source: International Journal of Electrochemical Science

DOI: 10.1016/j.ijoes.2025.101151

Authors: Gloria A. Cosco-Salguero, Edgar Nagles, Johisner Penagos-Llanos, Rodrigo Segura, John Hurtado

Institutions: National University of San Marcos, Universidad de Santiago de Chile, Universidad de Los Andes

Language: English

Topic: Electrochemical sensors and biosensors

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $1,670

Funders: Universidad de los Andes, Universidad Nacional Mayor de San Marcos, Department of Chemistry, University of York, Fondo Nacional de Desarrollo Científico y Tecnológico