The Simultaneous Electrochemical Detection of Catechol and Hydroquinone with CuSal-β-Ala3,5-DMPz2-SWCNTs-GCEReportar como inadecuado




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Department of Chemistry, School of Chemistry, Chemical Engineering and Life Science, Wuhan University of Technology, Wuhan 430070, China





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Abstract A glassy carbon electrode was modified with a copperII complex CuSal-β-Ala 3,5-DMPz2 Sal = salicylaldehyde, β-Ala = β-alanine, 3,5-DMPz = 3,5-dimethylpyrazole and single-walled carbon nanotubes SWCNTs. The modified electrode was used to detect catechol CT and hydroquinone HQ and exhibited good electrocatalytic activities toward the oxidation of CT and HQ. The peak currents were linear with the CT and HQ concentrations over the range of 5–215 μmol·L−1 and 5–370 μmol·L−1 with corresponding detection limits of 3.5 μmol·L−1 and 1.46 μmol·L−1 S-N = 3 respectively. Moreover, the modified electrode exhibited good sensitivity, stability and reproducibility for the determination of CT and HQ, indicating the promising applications of the modified electrode in real sample analysis. View Full-Text

Keywords: copperII Schiff base complex; single-walled carbon nanotubes; modified electrode; catechol; hydroquinone; electrochemical detection copperII Schiff base complex; single-walled carbon nanotubes; modified electrode; catechol; hydroquinone; electrochemical detection





Autor: Lina Abdullah Alshahrani, Xi Li * , Hui Luo, Linlin Yang, Mengmeng Wang, Songling Yan, Peng Liu, Yuqin Yang and Quanhua Li

Fuente: http://mdpi.com/



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