Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/76079
Title: Sensitive and simultaneous electrochemical sensing for three dihydroxybenzene isomers based on poly(L-arginine) modified glassy carbon electrode
Authors: Zhu, GB 
Sun, H
Qian, JJ
Wu, XY
Yi, YH
Keywords: Dihydroxybenzene isomers
Hydroquinone
Catechol
Resorcinol
L-arginine
Electrochemical sensor
Modified electrode
Issue Date: 2017
Publisher: Japan Society for Analytical Chemistry
Source: Analytical sciences, 2017, v. 33, no. 8, p. 917-923 How to cite?
Journal: Analytical sciences 
Abstract: The simultaneous and sensitive electrochemical detection of dihydroxybenzene isomers (hydroquinone, HQ; catechol, CC; resorcinol, RS) is of great significance because such isomers can be awfully harmful to the environment and human health. In this paper, by preparing poly(L-arginine) modified glassy carbon electrode (P-L-Arg/GCE) with a simple method, a highly sensitive electrochemical sensor for simultaneously detecting HQ, CC and RS was constructed successfully due to the large surface area, good electronic properties and catalytic ability of P-L-Arg/GCE and the electrostatic action between P-L-Arg (positive) and targets (negative). Under the optimized conditions, the results show that the P-L-Arg/GCE has a wide linear range from 0.1 to 110.0 mu M for HQ,CC and RS. The detection limits for HQ, CC and RS are 0.01, 0.03 and 0.1 mu M, respectively. Finally, the proposed sensor was successfully applied in real sample analysis.
URI: http://hdl.handle.net/10397/76079
ISSN: 0910-6340
EISSN: 1348-2246
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