Modified Glassy Carbon Electrode with Polypyrrole Nanocomposite for the Simultaneous Determination of Ascorbic acid, Dopamine, Uric acid, and Folic Acid

Content Provider	Semantic Scholar
Author	Ghanbari, Khadijeh Bonyadi, Sepideh
Copyright Year	2020
Abstract	A fast and simple method for synthesis of Cu x O-ZnO/PPy/RGO nanocomposite by electrochemical manner have been reported in this paper. For testing the utility of this nanocomposite we modified a GCE with the nanocomposite to yield a sensor for simultaneous determination of four analytes namely ascorbic acid (AA), dopamine (DA), uric acid (UA), and folic acid (FA). Cyclic voltammetry (CV) and Differential pulse voltammetry (DPV) selected for the study. The modified electrode cause to enhance electron transfer rate so overcome to overlapping their peaks and consequently having the ability to the simultaneous determination of AA, DA, UA, and FA. To synthesis confirmation of the nanocomposite, Field emission scanning electron microscopy (FE-SEM), Raman spectroscopy, and electrochemical impedance spectroscopy (EIS) were applied. The linearity ranges were 0.07-485 μM, 0.05-430 μM, 0.02-250 μM and 0.022-180 μM for AA, DA, UA, and FA respectively and the detection limits were 22 nM, 10 nM, 5 nM and 6 nM for AA, DA, UA, and FA respectively Also, the obtained electrode can be used for the determination of the AA, DA, UA, and FA in human blood, and human
Starting Page	68
Ending Page	83
Page Count	16
File Format	PDF HTM / HTML
DOI	10.33961/jecst.2019.00472
Volume Number	11
Alternate Webpage(s)	https://www.jecst.org/upload/pdf/jecst-2019-00472.pdf
Alternate Webpage(s)	https://www.jecst.org/upload/media/jecst-2019-00472-suppl.pdf
Alternate Webpage(s)	https://doi.org/10.33961/jecst.2019.00472
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article