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Original scientific paper
https://doi.org/10.5562/cca2420

Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination

Ling Ding ; College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, People’s Republic of China
Lei Li ; Liaoning Research Institute of Light Industry, Shenyang 110004, People’s Republic of China
Wei You ; College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, People’s Republic of China
Zuo-Ning Gao ; College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, People’s Republic of China
Tian-Lin Yang ; College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan, 750021, People’s Republic of China

Fulltext: english, pdf (1 MB) pages 81-87 downloads: 799* cite
APA 6th Edition
Ding, L., Li, L., You, W., Gao, Z. & Yang, T. (2015). Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination. Croatica Chemica Acta, 88 (1), 81-87. https://doi.org/10.5562/cca2420
MLA 8th Edition
Ding, Ling, et al. "Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination." Croatica Chemica Acta, vol. 88, no. 1, 2015, pp. 81-87. https://doi.org/10.5562/cca2420. Accessed 19 Apr. 2021.
Chicago 17th Edition
Ding, Ling, Lei Li, Wei You, Zuo-Ning Gao and Tian-Lin Yang. "Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination." Croatica Chemica Acta 88, no. 1 (2015): 81-87. https://doi.org/10.5562/cca2420
Harvard
Ding, L., et al. (2015). 'Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination', Croatica Chemica Acta, 88(1), pp. 81-87. https://doi.org/10.5562/cca2420
Vancouver
Ding L, Li L, You W, Gao Z, Yang T. Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination. Croatica Chemica Acta [Internet]. 2015 [cited 2021 April 19];88(1):81-87. https://doi.org/10.5562/cca2420
IEEE
L. Ding, L. Li, W. You, Z. Gao and T. Yang, "Electrocatalytic Oxidation of Venlafaxine at a Multiwall Carbon Nanotubes-Ionic Liquid Gel Modified Glassy Carbon Electrode and Its Electrochemical Determination", Croatica Chemica Acta, vol.88, no. 1, pp. 81-87, 2015. [Online]. https://doi.org/10.5562/cca2420

Abstracts
The electrocatalytic oxidation of venlafaxine (VEN) was investigated at a glassy carbon
electrode (GCE), the modified electrode by a gel containing multiwall carbon nanotubes (MWCNTs) and
a room-temperature ionic liquid (RTIL), 1-butyl-3-methylimidazolium hexafluorophate (BMIMPF6) in
0.10 mol L−1 phosphate buffer solution (PBS, pH 6.8). It was found that an irreversible anodic oxidation
peak of VEN with the peak potential (Epa) as 0.780 V appeared at MWCNTs-RTIL/GCE. The electrode
reaction process was a diffusion-controlled one and the electrochemical oxidation involved two electrons
transferring and two protons participation. Furthermore, the charge-transfer coefficient (α), and the electrode
reaction rate constant (kf) of VEN were found to be 0.91 and 3.04×10−2 s−1, respectively. Under the
optimized conditions, the electrocatalytic oxidation peak currents were linearly dependent on the concentration
of VEN in the concentration range from 2.0×10−6 mol L−1 ~ 2.0×10−3 mol L−1 with the limit of
detection (S / N = 3) as 1.69×10−6 mol L−1. The proposed method has been successfully applied in the electrochemical
quantitative determination of VEN content in commercial venlafaxine hydrochloride capsules
and the determination results could meet the requirement of the quantitative determination.

Keywords
venlafaxine; electrocatalytic oxidation; MWCNTs-RTIL/GCE; GCE electrochemical determination

Hrčak ID: 139133

URI
https://hrcak.srce.hr/139133

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