Simultaneous Voltammetric Determination of Ascorbic Acid, Paracetamol, and Caffeine Using Electrochemically Reduced Graphene-Oxide-Modified Electrode
Joint Authors
Quang Khieu, Dinh
Hai Phong, Nguyen
Tam Toan, Tran Thanh
Xuan Mau, Tran
Tinh, Mai Xuan
Ngoc Tuyen, Tran
Source
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-08-27
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Abstract EN
In the present paper, graphene oxide was directly electrodeposited by means of cyclic voltammetric techniques on the glassy-carbon electrode (GCE) to obtain a reduced graphene-oxide-modified electrode (ErGO/GCE).
Cyclic voltammetry (CV) and differential pulse anodic stripping voltammetry (DP-ASV) had been utilized to study the electrochemical behavior of ErGO/GCE toward ascorbic acid (AA), paracetamol (PA), and caffeine (CA).
Differential pulse voltammetry results show that AA, PA, and CA could be detected selectively and sensitively on ErGO/GCE with peak-to-peak separation of 312 mV and 756 mV for AA–PA and PA–CA, respectively.
The factors affecting the voltammetric signals such as pH, scan rate, and interferents were addressed.
The results reveal that the ErGO/GCE-modified electrode exhibits excellent electrochemical activity in the oxidation of PA, CA, and AA.
The detection limits are 0.36 μM, 0.25 μM, and 0.23 μM for AA, PA and CA, respectively, suggesting that the ErGO/GCE can be utilized with high sensitivity and selectivity for the simultaneous determination of these compounds.
Finally, the proposed method was successfully used to determine AA, PA, and CA in pharmaceutical preparations.
American Psychological Association (APA)
Hai Phong, Nguyen& Tam Toan, Tran Thanh& Tinh, Mai Xuan& Ngoc Tuyen, Tran& Xuan Mau, Tran& Quang Khieu, Dinh. 2018. Simultaneous Voltammetric Determination of Ascorbic Acid, Paracetamol, and Caffeine Using Electrochemically Reduced Graphene-Oxide-Modified Electrode. Journal of Nanomaterials،Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1194339
Modern Language Association (MLA)
Hai Phong, Nguyen…[et al.]. Simultaneous Voltammetric Determination of Ascorbic Acid, Paracetamol, and Caffeine Using Electrochemically Reduced Graphene-Oxide-Modified Electrode. Journal of Nanomaterials No. 2018 (2018), pp.1-15.
https://search.emarefa.net/detail/BIM-1194339
American Medical Association (AMA)
Hai Phong, Nguyen& Tam Toan, Tran Thanh& Tinh, Mai Xuan& Ngoc Tuyen, Tran& Xuan Mau, Tran& Quang Khieu, Dinh. Simultaneous Voltammetric Determination of Ascorbic Acid, Paracetamol, and Caffeine Using Electrochemically Reduced Graphene-Oxide-Modified Electrode. Journal of Nanomaterials. 2018. Vol. 2018, no. 2018, pp.1-15.
https://search.emarefa.net/detail/BIM-1194339
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1194339