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Bulletin of the Korean Chemical Society (BKCS)

ISSN 0253-2964(Print)
ISSN 1229-5949(Online)
Volume 35, Number 1
BKCSDE 35(1)
January 20, 2014 

Simultaneous Electrochemical Determination of Hydroquinone, Catechol and Resorcinol at Nitrogen Doped Porous Carbon Nanopolyhedrons-multiwall Carbon Nanotubes Hybrid Materials Modified Glassy Carbon Electrode
Wei Liu, Liang Wu, Xiaohua Zhang, Jinhua Chen*
Multi-walled carbon nanotubes, Nitrogen doped porous carbon nanopolyhedrons, Simultaneous detection, Dihydroxybenzene isomers
The nitrogen doped porous carbon nanopolyhedrons (N-PCNPs)-multi-walled carbon nanotubes (MWCNTs) hybrid materials were prepared for the first time. Combining the excellent catalytic activities, good electrical conductivities and high surface areas of N-PCNPs and MWCNTs, the simultaneous determination of hydroquinone (HQ), catechol (CC) and resorcinol (RE) with good analytical performance was achieved at the NPCNPs- MWCNTs modified electrode. The linear response ranges for HQ, CC and RE are 0.2-455 M, 0.7- 440 M and 3.0-365 M, respectively, and the detection limits (S/N = 3) are 0.03 M, 0.11 M and 0.38 M, respectively. These results are much better than that obtained on some graphene or CNTs-based materials modified electrodes. Furthermore, the developed sensor was successfully applied to simultaneously detect HQ, CC and RE in the local river water samples.
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