Electrochemical Pretreatment of Carbon Fiber Microelectrodes Based on Sinusoidal-wave Potential Cycling and its Application to Amperometric Sensing of Bioactive Compounds

Vladimir Halouzka; Jan Hrbac; David Jirovsky; Daniel Riman; Petr Jakubec; Zdenka Bartosova; Vlastimil Masek; Peter Mojzes; Jan Vacek

doi:10.2174/157341113805219018

ISSN: 1573-4110
E-ISSN: 1875-6727

Electrochemical Pretreatment of Carbon Fiber Microelectrodes Based on Sinusoidal-wave Potential Cycling and its Application to Amperometric Sensing of Bioactive Compounds
By Vladimir Halouzka, Jan Hrbac, David Jirovsky, Daniel Riman, Petr Jakubec, Zdenka Bartosova, Vlastimil Masek, Peter Mojzes and Jan Vacek
Source: Current Analytical Chemistry, Volume 9, Issue 2, Apr 2013, p. 305 - 311
DOI: https://doi.org/10.2174/157341113805219018
- Available online: 01 Apr 2013

Abstract

We demonstrate the electrochemical pretreatment of carbon fiber microelectrodes (CFEs) based on the sinusoidal- wave potential cycling (50 Hz) of CFEs prior to amperometric analysis. The surface modification and morphology of CFEs after pretreatment was studied using Raman spectroscopy and scanning electron microscopy. The pretreated CFEs were extensively tested for sensing of bioactive compounds (dopamine, nitric oxide, ascorbate and nitrite) by constant current amperometry at 830 mV vs. Ag/AgCl.

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2013-04-01

2025-05-07

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Article Type: Research Article

Keyword(s): Carbon fiber; dopamine; microelectrode; nitric oxide; pretreatment; sensor

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Electrochemical Pretreatment of Carbon Fiber Microelectrodes Based on Sinusoidal-wave Potential Cycling and its Application to Amperometric Sensing of Bioactive Compounds

Abstract

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