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Paper Information

Journal:   INTERNATIONAL JOURNAL OF NANO DIMENSION (IJND)   Spring 2019 , Volume 10 , Number 2; Page(s) 154 To 162.

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

Author(s):  SHEIKHSHOAIE IRAN*, Garkani Nejad Fariba, BEITOLLAHI HADI*
* Environment Department, Institute of Science and High Technology and Environmental Sciences, Graduate University of Advanced Technology, Kerman, Iran
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. 5μ M to 250. 0μ M, with a detection limit of 0. 09μ M. Finally, the proposed sensor was successfully applied to the detection of acetaminophen in real samples.
Keyword(s): Acetaminophen,Electrocatalytic Activity,Graphite Screen Printed Electrode,La3+/Co3O4 Nanoflowers,Modified Electrode
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