An electrochemical sensor based on titanium oxide–carbon nanotubes nanocomposite for simultaneous determination of hydroquinone and catechol

An electrochemical sensor based on titanium oxide–carbon nanotubes nanocomposite for... A novel TiO2/multi-walled carbon nanotubes (MWCNTs) composite film-modified electrode was fabricated to devolop an electrochemical sensor for the simultaneous determination of hydroquinone (HQ) and catechol (CC). The prepared electrode not only separated the peaks of HQ and CC on the cyclic voltammogram with oxidation potential difference of 116 mV but also lowered the overpotential significantly and increased the reversible process and the peak currents of HQ and CC. In 0.1 M PBS (pH = 7.0). The oxidation peak current was linearly proportional to the concentration of CC and HQ in two broad linear ranges with the detection limit of 0.8 μM. The present electrochemical sensor for the simultaneous determination of CC and HQ showed high sensitivity and low detection limit. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

An electrochemical sensor based on titanium oxide–carbon nanotubes nanocomposite for simultaneous determination of hydroquinone and catechol

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Publisher
Springer Netherlands
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1420-9
Publisher site
See Article on Publisher Site

Abstract

A novel TiO2/multi-walled carbon nanotubes (MWCNTs) composite film-modified electrode was fabricated to devolop an electrochemical sensor for the simultaneous determination of hydroquinone (HQ) and catechol (CC). The prepared electrode not only separated the peaks of HQ and CC on the cyclic voltammogram with oxidation potential difference of 116 mV but also lowered the overpotential significantly and increased the reversible process and the peak currents of HQ and CC. In 0.1 M PBS (pH = 7.0). The oxidation peak current was linearly proportional to the concentration of CC and HQ in two broad linear ranges with the detection limit of 0.8 μM. The present electrochemical sensor for the simultaneous determination of CC and HQ showed high sensitivity and low detection limit.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Oct 9, 2013

References

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