Simultaneous voltammetric measurement of ascorbic acid and dopamine at poly (vanillin) modified carbon paste electrode

A cyclic voltammetric study

J. G. Manjunatha, B. E. Kumara Swamy, Mohamad Deraman, G. P. Mamatha

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

Polymerized film of vanillin was prepared on to the surface of carbon paste electrode in alkaline solution by cyclic voltammetric (CV) technique after pretreatment by H2SO4 media. The poly vanillin (VA) film coated carbon paste electrode (CPE) exhibited excellent electrocatalytic activity toward the oxidation of dopamine (DA) and ascorbic acid (AA) in 0.2M acetate buffer solution at pH 7. This modified electrode exhibited a potent and persistent electron-mediating behavior followed by well-separated oxidation peaks towards DA and AA. The modified electrode shows good sensitivity, selectivity and stability and has been applied to the determination of DA and AA.

Original languageEnglish
Pages (from-to)2489-2497
Number of pages9
JournalDer Pharma Chemica
Volume4
Issue number6
Publication statusPublished - 2012

Fingerprint

Ointments
Ascorbic Acid
Dopamine
Carbon
Electrodes
Oxidation
Buffers
Acetates
vanillin
Electrons

Keywords

  • Ascorbic acid
  • Carbon paste modified electrode
  • Cyclic voltammetry
  • Dopamine
  • Electropolymerisation
  • Poly (vanillin)

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Simultaneous voltammetric measurement of ascorbic acid and dopamine at poly (vanillin) modified carbon paste electrode : A cyclic voltammetric study. / Manjunatha, J. G.; Kumara Swamy, B. E.; Deraman, Mohamad; Mamatha, G. P.

In: Der Pharma Chemica, Vol. 4, No. 6, 2012, p. 2489-2497.

Research output: Contribution to journalArticle

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