Nano Archive

Voltammetric determination of xanthine with a single-walled carbon nanotube-ionic liquid paste modified glassy carbon electrode

Xiao, Fei and Ruan, Changping and Li, Jiangwen and Liu, Lihong and Zhao, Faqiong and Zeng, Baizhao (2008) Voltammetric determination of xanthine with a single-walled carbon nanotube-ionic liquid paste modified glassy carbon electrode. ELECTROANALYSIS, 20 (4). pp. 361-366.

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Official URL: http://www3.interscience.wiley.com/journal/1168335...

Abstract

Single-walled carbon nanotube (SWNT) and room temperature ionic liquid (i.e., 1-butyl-3-methylimidazolium hexaflourophosphate, BMIMPF6) were used to fabricate paste modified glassy electrode (GCE). It was found that the electrode showed sensitive voltammetric response to xanthine (Xt). The detection limit was 2.0 x 10(-9) M and the linear range was 5.0 x 10(-9) to 5.0 x 10(-6) M. The electrode also displayed good selectivity and repeatability. In the presence of uric acid (UA) and hypoxanthine (Hx) the response of Xt kept almost unchanged. Thus this electrode could find application in the determination of Xt in some real samples. The analytical performance of the BMIMPF6-SWNT/GCE was demonstrated for the determination of Xt in human serum and urine samples.

Item Type:Article
Uncontrolled Keywords:xanthine; ionic liquid; single-walled carbon nanotubes; voltammetry
Subjects:Material Science > Functional and hybrid materials
Physical Science > Nano objects
ID Code:520
Deposited By:IoN
Deposited On:20 Jan 2009 12:48
Last Modified:29 Jan 2009 16:20

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