Journal
ELECTROANALYSIS
Volume 26, Issue 6, Pages 1320-1325Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/elan.201400071
Keywords
Levodopa; Nile blue-A; Polyphenoxazines; Carbon nanotubes; Modified glassy carbon electrodes
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Funding
- Fundacao para a Ciencia e a Tecnologia (FCT), Portugal [PTDC/QUI- QUI/116091/2009]
- POCH
- POFC-QREN
- FSE
- European Community FEDER funds through the program COMPETE - Programa Operacional Factores de Competitividade) [PEst-C/EME/UI0285/2013]
- CENTRO [-07-0224 -FEDER -002001]
- Council of Higher Education (YOK, Turkey)
- Fundação para a Ciência e a Tecnologia [PTDC/QUI-QUI/116091/2009] Funding Source: FCT
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The electrochemical behaviour of levodopa (LD) has been investigated at multiwalled carbon nanotube (MWCNT) and poly(Nile blue-A) (PNB) modified glassy carbon electrodes (GCE). MWCNT/PNB modified electrodes were prepared by NB potential cycling electropolymerisation in 0.1 M phosphate buffer solution (PB), pH 6.0, followed by MWCNT deposition, and PNB/MWCNT/GCE by coating in the inverse order. The oxidation behaviour of LD was investigated in 0.1 M PB at pH values between 5.0 and 8.0. Quantitative determination of LD by differential pulse and square wave voltammetry was carried out in 0.1 M PB at pH 6.0. Analytical parameters were compared with the literature.
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