Simultaneous Measurement of Epinephrine and Ascorbic Acid at the Carbon Nanotube Electrode

Abstract:

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Electrochemical behaviors of epinephrine and ascorbic acid have been studied at the carbon nanotube electrode using cyclic voltammetry. Electrocatalysis has been found for epinephrine redox reactions at the carbon nanotube electrode in the comparison with the glassy carbon electrode. A well-defined oxidative peak for ascorbic acid was observed at the carbon nanotube electrode with the peak potential negative shift versus the glassy carbon electrode. Low level of epinephrine can be determined at the carbon nanotube electrode selectively with high sensitivity in the presence of a large excess of ascorbic acid in the acidic media and in the physiological pH buffer solution.

Info:

Edited by:

M. Gupta and Christina Y.H. Lim

Pages:

305-308

DOI:

10.4028/www.scientific.net/JMNM.23.305

Citation:

C.G. Hu et al., "Simultaneous Measurement of Epinephrine and Ascorbic Acid at the Carbon Nanotube Electrode", Journal of Metastable and Nanocrystalline Materials, Vol. 23, pp. 305-308, 2005

Online since:

January 2005

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Price:

$35.00

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