An electrochemical acetaminophen sensor based on La3+/Co3O4 nanoflowers modified graphite screen printed electrode architecture

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  • Iran Sheikhshoaie1,
  • Fariba Garakani Nejad1,
  • Hadi Beitollai2,
  1. Department of Chemistry, Shahid Bahonar University, Kerman, Iran.
  2. Sciences, Graduate University of Advanced Technology, Kerman, Iran.

Published in Issue 2024-02-07

How to Cite

Sheikhshoaie, I., Garakani Nejad, F., & Beitollai, H. (2024). An electrochemical acetaminophen sensor based on La3+/Co3O4 nanoflowers modified graphite screen printed electrode architecture. International Journal of Nano Dimension, 10(2). https://oiccpress.com/ijnd/article/view/4224

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Abstract

In this study, the La3+/Co3O4 nanoflowers were synthesized by co-precipitation method. The morphology of the La3+/Co3O4NFs were characterized using scanning electron microscopy (SEM), and were further used to modify the graphite screen printed electrode (GSPE). The electrochemical behavior of acetaminophen at La3+/Co3O4NFs/GSPE has been studied in aqueous solutions. Experimental results showed that the La3+/Co3O4NFs modified GSPE possess excellent electrocatalytic activity toward the detection of acetaminophen. Under optimum conditions, the La3+/Co3O4NFs modified electrode exhibited high sensitivity and stability to acetaminophen over a wide linear range of concentrations from 0.5μM to 250.0μM, with a detection limit of 0.09μM. Finally, the proposed sensor was successfully applied to the detection of acetaminophen in real samples.

Keywords

  • Acetaminophen,
  • Electrocatalytic activity,
  • Graphite screen printed electrode,
  • La3+/Co3O4 nanoflowers,
  • Modified electrode
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