Real-time electrochemical determination of phenolic compounds after benzene oxidation
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
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| Data(s) |
30/10/2013
30/10/2013
02/08/2013
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| Resumo |
A sensitive electrochemical sensor was successfully developed on multi-walled carbon nanotubes (MWCNT) and cobalt phthalocyanine (CoPc) modified glassy carbon electrode (GC), and used to detect byproducts formed after the electrolysis of benzene. The GC/MWCNT/CoPc electrode was applied in the detection of phenolic compounds using square wave voltammetry (SWV). The proposed sensor exhibited a sequence in the sensitivity of the tested phenols: catechol > hydroquinone > resorcinol > phenol and 1,4-benzoquinone. The detection limits for individual phenols were also calculated: catechol (15.62 mu g L-1), hydroquinone (17.91 mu g L-1), resorcinol (46.12 mu g L-1), phenol (58.83 mu g L-1) and 1,4-benzoquinone (13.75 mu g L-1). The proposed sensor was successfully applied in the determination of the total amount of phenols formed after the benzene oxidation, and the obtained results were in full agreement with those from the HPLC procedure. (C) 2012 Elsevier B.V. All rights reserved. Fapesp [2010/11567-3, 2010/11049-2] FAPESP CNPq CNPq |
| Identificador |
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, LAUSANNE, v. 672, n. 4, supl. 4, Part 1-2, pp. 34-39, MAY 1, 2012 1572-6657 http://www.producao.usp.br/handle/BDPI/36843 10.1016/j.jelechem.2012.03.006 |
| Idioma(s) |
eng |
| Publicador |
ELSEVIER SCIENCE SA LAUSANNE |
| Relação |
JOURNAL OF ELECTROANALYTICAL CHEMISTRY |
| Direitos |
closedAccess Copyright ELSEVIER SCIENCE SA |
| Palavras-Chave | #CARBON NANOTUBES #PHENOLIC BYPRODUCTS #BENZENE #MULTIWALLED CARBON NANOTUBES #PERMEABLE REACTIVE BARRIER #CONTAMINATED GROUNDWATER #COBALT PHTHALOCYANINE #ELECTRODES #WATER #HYDROQUINONE #IMMOBILIZATION #BIOREMEDIATION #CATECHOL #CHEMISTRY, ANALYTICAL #ELECTROCHEMISTRY |
| Tipo |
article original article publishedVersion |
