In:
Sensor Letters, American Scientific Publishers, Vol. 18, No. 10 ( 2020-10-01), p. 755-762
Abstract:
In this work, we prepared AgOx/Graphene composite material as the working electrode; the acetaminophen is determined by the electrochemical method. Using cyclic voltammetry electrochemical sensing method determined the current signal of acetaminophen (0.98 μ M–15.6 μ M)
with electrolyte phosphate-buffer solution. When the voltage was operated as 0.42 V, an oxidation peak appeared in the linear concentration range and the least mean square was obtained R 2 = 0.9922, and the detection limit was calculated as 0.26 μ M. Using a differential
pulse voltammetry electrochemical-sensing method, we determined the current signal of various acetaminophen concentrations (0.98 μ M–7.8 μ M). When the voltage is 0.33 V, R 2 = 0.9996, and the detection limit is 0.15 μ M. The material was characterized
by TEM and XRD. It was also confirmed that Ag2O and Ag coexist (AgOx) on the surface of graphene, which facilitates the oxidation-reduction reaction of acetaminophen on the electrode.
Type of Medium:
Online Resource
ISSN:
1546-198X
DOI:
10.1166/sl.2020.4276
Language:
English
Publisher:
American Scientific Publishers
Publication Date:
2020
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