Electrochemical Detection of Ascorbic Acid by Fe₂O₃ Nanoparticles Modified Glassy Carbon Electrode

Background The article delineates a strategy for detecting ascorbic acid (AA) through the use of iron oxide (Fe₂O₃) nanoparticles on an electrode. The Fe₂O₃ nanoparticles demonstrated effective electrocatalysis in the oxidation of AA, resulting in increased peak currents. The sensor showcased a wide linear detection range, a low detection limit, and high selectivity towards interferents, making it suitable for accurate AA measurement in food analysis and medical diagnostics applications. This emphasizes the potential of Fe₂O₃ nanoparticle-based sensors for precise AA detection. Aim The primary aim of this research is to develop an electrochemical sensing technique for the identification of ascorbic acid, with the use of Fe₂O₃ nanoparticles as the sensing matrix. Materials and methods The synthesis process involved the utilization of FeCl