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<p>Waste carbon and carbon nanotubes were combined to create a polymer-modified composite paste electrode. The improved electrode’s electrochemical analysis and effectiveness for the electrocatalytic oxidation of ferulic acid were reported. The sensor was used to examine the electrocatalytic oxidation of ferulic acid utilizing cyclic voltammetry and differential pulse voltammetry as diagnostic methods. It has been discovered that the modified surface of the electrode oxidizes ferulic acid with a higher current response than that of an unmodified electrode. For ferulic acid, DPV shows a detection limit of 0.513&#xa0;μM and a linear dynamic range of 0.2&#xa0;μM to 4.0&#xa0;μM. A simultaneous study also conducted with vanillin, the produced sensor showed exceptional sensitivity and selectivity. Finally, the ferulic acid in the genuine sample was determined using the modified electrode.</p> Graphical Abstract <p></p>

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Waste carbon and carbon nanotube composite paste electrode for ferulic acid detection

  • 期刊论文

  • 发表日期：

    2025年8月13日

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  • K. P. Moulya,
  • J. G. Manjunatha,
  • V. Nandakumar,
  • D. K. Ravishankar,
  • Ashok S. Alur,
  • Nagaraja Sreeharsha,
  • T. C. Canevari

摘要

Waste carbon and carbon nanotubes were combined to create a polymer-modified composite paste electrode. The improved electrode’s electrochemical analysis and effectiveness for the electrocatalytic oxidation of ferulic acid were reported. The sensor was used to examine the electrocatalytic oxidation of ferulic acid utilizing cyclic voltammetry and differential pulse voltammetry as diagnostic methods. It has been discovered that the modified surface of the electrode oxidizes ferulic acid with a higher current response than that of an unmodified electrode. For ferulic acid, DPV shows a detection limit of 0.513 μM and a linear dynamic range of 0.2 μM to 4.0 μM. A simultaneous study also conducted with vanillin, the produced sensor showed exceptional sensitivity and selectivity. Finally, the ferulic acid in the genuine sample was determined using the modified electrode.

Graphical Abstract