Electrochemical Investigation and Determination of Levodopa on Poly(Nile Blue-A)/Multiwalled Carbon Nanotube Modified Glassy Carbon Electrodes

KUL D., Brett C. M. A.

ELECTROANALYSIS, cilt.26, sa.6, ss.1320-1325, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 26 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1002/elan.201400071
  • Dergi Adı: ELECTROANALYSIS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1320-1325
  • Anahtar Kelimeler: Levodopa, Nile blue-A, Polyphenoxazines, Carbon nanotubes, Modified glassy carbon electrodes, PARKINSONS-DISEASE, ELECTROCATALYTIC OXIDATION, L-DOPA, VOLTAMMETRIC DETERMINATION, SOLID ELECTRODES, FILM ELECTRODES, BIOSENSORS, SENSOR, BENSERAZIDE, MEDIATOR
  • Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

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.