A hydroquinone sensor based on a new nanocrystals modified electrode. Issue 2 (7th June 2013)

• Record Type: Journal Article
• Authors: Zou, Jing; Ma, Jinai; Zhang, Yuanxiao; Huang, Lei; Wan, Qijin
• Is Part Of: Journal of chemical technology & biotechnology. Volume 89:Issue 2(2014:Feb.)
• Page Start: 259
• Page End: 264
• Publication Date: 2013-06-07
• Subjects: Biotechnology -- Periodicals; Chemistry, Technical -- Periodicals; Chemical engineering -- Periodicals; Industries -- Environmental aspects -- Periodicals; 660
• DOI: 10.1002/jctb.4111
• Languages: English
• ISSNs: 0268-2575

Abstract

<abstract abstract-type="main"> <title>Abstract</title> <sec id="jctb4111-sec-0001" sec-type="section"> <title>BACKGROUND</title> <p> <bold>CuS nanocrystals with excellent properties are widely applied as semiconductor materials, but little work has been done on their application to electrochemical analysis. This paper reports on a very straightforward method to synthesize pure hexagonal phase CuS nanocrystals with an average diameter of 20 nm by a solvothermal method. A glassy carbon electrode was modified by drop casting the suspension of CuS nanocrystals and chitosan onto its surface. The new electrochemical sensor was developed for the determination of hydroquinone.</bold> </p> </sec> <sec id="jctb4111-sec-0002" sec-type="section"> <title>RESULTS</title> <p> <bold>The crystallization, morphology and composition of as‐prepared CuS nanocrystals were characterized by XRD, SEM, Raman and EDS, respectively. The electrochemical oxidation behavior of hydroquinone at a CuS nanocrystals/chitosan/glassy carbon electrode was investigated by cyclic voltammetry. The electrode exhibited a wide linear dynamic range between 4.5 µmol L<sup>−1</sup> and 4.5 mmol L<sup>−1</sup> hydroquinone, and a detection limit of 1.5 µmol L<sup>−1</sup>.</bold> </p> </sec> <sec id="jctb4111-sec-0003" sec-type="section"> <title>CONCLUSIONS</title> <p> <bold>The electrode was successfully applied to the determination of hydroquinone in real water samples with satisfactory accuracy and precision. © 2013 Society of Chemical Industry</bold> </p> </sec> </abstract>