Investigation of Carbon Allotropes for Simultaneous Determination of Ascorbic Acid, Epinephrine, Uric Acid, Nitrite and Xanthine

Content Provider	Semantic Scholar
Author	Tohidinia, M. Baluchestan, Zahedan Iran.
Copyright Year	2018
Abstract	In this study, modified glassy carbon electrode (GCE) with different carbon allotropes such as multiwall carbon nanotubes (MWCNTs), graphene, bucky ball and graphite have been used for the simultaneous determination of ascorbic acid (AA), epinephrine (EP), uric acid (UA), Nitrite (NO2 ), and xanthine (XN). Different electrochemical methods such as cyclic voltammetry, differential pulse voltammetry and chronoamperometry methods were employed to study the behavior of AA, EP, UA, NO2 and XN on these proposed modified electrodes. The modified GCE with MWCNTs was successfully used for simultaneous determination of AA, EP, UA, NO2 and XN. The electron transfer coefficients, diffusion coefficients and standard heterogeneous rate constant were determined for the electrochemical oxidation of AA, EP, UA, NO2 and XN. Under the optimum conditions, detection limits of 16.3, 3.92, 0.37, 29.9 and 0.13 μM were obtained for AA, EP, UA, NO2 , and XN, respectively. Moreover, the best modified GCE was applied for simultaneous determination of AA, EP, UA, NO2 , and XN in Human urine, serum and AA Tables samples.
Starting Page	2310
Ending Page	2328
Page Count	19
File Format	PDF HTM / HTML
DOI	10.20964/2018.03.122
Alternate Webpage(s)	http://www.electrochemsci.org/papers/vol13/130302310.pdf
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article