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Research Papers

Determination of Cyanuric Acid by Electrochemical Cyclic Voltammetry Method Using CuGeO3 Nanowires as Modified Electrode Materials

[+] Author and Article Information
L. Z. Pei

Key Lab of Materials Science
and Processing of Anhui Province,
School of Materials Science and Engineering,
Anhui University of Technology,
Ma'anshan,
Anhui 243002, China
e-mail: lzpei@ahut.edu.cn, lzpei1977@163.com

Y. K. Xie, Y. Q. Pei, Z. Y. Cai

Key Lab of Materials Science
and Processing of Anhui Province,
School of Materials Science and Engineering,
Anhui University of Technology,
Ma'anshan,
Anhui 243002, China

C. G. Fan

Key Lab of Materials Science
and Processing of Anhui Province,
School of Materials Science and Engineering,
Anhui University of Technology,
Ma'anshan,
Anhui 243002, China

1Corresponding author.

Manuscript received March 1, 2013; final manuscript received October 22, 2013; published online November 28, 2013. Assoc. Editor: Jung-Chih Chiao.

J. Nanotechnol. Eng. Med 4(3), 031003 (Nov 28, 2013) (5 pages) Paper No: NANO-13-1014; doi: 10.1115/1.4026024 History: Received March 01, 2013; Revised October 22, 2013

A simple electrochemical method for the determination of cyanuric acid (CA) has been developed based on a CuGeO3 nanowire modified glassy carbon electrode. The dense CuGeO3 nanowire film can be formed on the surface of the glassy carbon electrode. The roles of scan rate, CA concentration, and electrolytes with different pH values on the electrochemical responses of CA have also been analyzed. The intensities of two anodic peaks vary linearly with the increase of the scan rate from 25 to 200 mVs−1. The intensity of the electrochemical CV peak increases with the increase of the acidity of the electrolytes. The two anodic peak currents are linear with the CA concentration in the range of 0.005–2 mM. The linear correlation coefficient is 0.984 and 0.980 for the cyclic voltammogram peaks (cvp) cvp1 and cvp2, respectively. The detection limit is 4.3 μM and 2.1 μM for cvp1 and cvp2, respectively. The proposed electrochemical method is convenient and effective sensing of CA.

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Figures

Grahic Jump Location
Fig. 1

Surface morphology of the CuGeO3 nanowire modified GCE

Grahic Jump Location
Fig. 2

CVs of the CuGeO3 nanowire modified GCE in 0.1 M KCl solution in absence (a) and presence (b) of 2 mM CA, scan rate, 50 mVs−1

Grahic Jump Location
Fig. 3

CVs of the CuGeO3 nanowire modified GCE in 2 mM CA and different electrolytes. Scan rate, 50 mVs−1. (a) KBr, (b) NaOH, (c) H2SO4, and (d) CH3COONa-CH3COOH.

Grahic Jump Location
Fig. 4

CVs of the CuGeO3 nanowire modified GCE in 0.1 M KCl and 2 mM CA solution using different scan rates. The inset in the bottom-left part is the calibration plots of the intensities of anodic peaks against the scan rate.

Grahic Jump Location
Fig. 5

CVs of the CA with different concentrations at the CuGeO3 nanowire modified GCE. KCl, 0.1 M, scan rate, 50 mVs−1. The inset in the bottom-left part is the calibration plots of the intensities of anodic peaks against the CA concentrations.

Grahic Jump Location
Fig. 6

CVs of the CuGeO3 nanowire modified GCE in 0.1 M KCl solution with 2 mM CA recycling for the 1st and 20th time. Scan rate, 50 mVs−1.

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