Electrocatalytic detection of dopamine and uric acid at poly (Basic blue b) modified carbon nanotube paste electrode

J. G. Manjunatha, Mohamad Deraman, N. H. Basri

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Electropolymerization of Basic Blue B by cyclic voltammetry (CV) onto the carbon nanotube (CNT) paste electrode results in the formation of poly (Basic Blue B) film/modified CNT paste electrode (PBBB/MCNTPE). The Modified electrode was used for the electrochemical determination of dopamine (DA) and uric acid. CV results showed that this PBBB/MCNTPE have reversible redox behavior in electrolyte solution. The resulting PBBB/MCNTPE were characterized using field emission scanning electron microscope. The analytical ability was tested with respect to the scan rate, number of cycle, pH of solution, and concentration variation. Measurement of these analytes studied simultaneously by CV and differential pulse voltammetry methods. The analytical curve for DA presented linear dependence over the concentration range from 3 × 10<sup>−6</sup> to 1.5 × 10<sup>−4</sup> M with a linear correlation coefficient of 0.99036. The detection limit of this method was 5.8 × 10<sup>−7</sup>. The method has good selectivity and sensitivity with satisfactory results.

Original languageEnglish
Pages (from-to)48-53
Number of pages6
JournalAsian Journal of Pharmaceutical and Clinical Research
Volume8
Issue number5
Publication statusPublished - 1 Sep 2015

Fingerprint

Carbon Nanotubes
Ointments
Uric Acid
Dopamine
Electrodes
Electrolytes
Oxidation-Reduction
Limit of Detection
Electrons

Keywords

  • Carbon nanotubes paste electrode
  • Cyclic voltammetry
  • Dopamine
  • Poly (basic blue b)
  • Uric acid

ASJC Scopus subject areas

  • Pharmaceutical Science
  • Pharmacology
  • Pharmacology (medical)

Cite this

Electrocatalytic detection of dopamine and uric acid at poly (Basic blue b) modified carbon nanotube paste electrode. / Manjunatha, J. G.; Deraman, Mohamad; Basri, N. H.

In: Asian Journal of Pharmaceutical and Clinical Research, Vol. 8, No. 5, 01.09.2015, p. 48-53.

Research output: Contribution to journalArticle

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