Square-wave voltammetric detection of apomorphine on a Nafion film modified glassy carbon electrode

Huei Lin Cheng, I-Wen Sun

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

A sensitive voltammetric method is developed for the detection of apomorphine using a Nafion film modified glassy carbon electrode. In this method, apomorphine is first accumulated into the electrode via ion-exchange. The redox peaks at around +0.2 V (vs. Ag/AgCl) corresponding to a two-electron oxidation/reduction of apomorphine were used for detection with square-wave voltammetry. The effects of experimental parameters, such as, pH, accumulation potential, accumulation time, and square-wave voltammetric parameters were studied. Using this method with an accumulation time of 3 min, a linear calibration plot for apomorphine was obtained up to 4 × 10-7 M in pH 6.0 buffer solution with a detection limit of 3 × 10-9 M.

Original languageEnglish
Pages (from-to)1544-1546
Number of pages3
JournalElectroanalysis
Volume13
Issue number18
DOIs
Publication statusPublished - 2001 Dec 1

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Apomorphine
Glassy carbon
Electrodes
Voltammetry
Ion exchange
Calibration
Electrons
Buffers
perfluorosulfonic acid
Oxidation-Reduction

All Science Journal Classification (ASJC) codes

  • Analytical Chemistry
  • Electrochemistry

Cite this

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abstract = "A sensitive voltammetric method is developed for the detection of apomorphine using a Nafion film modified glassy carbon electrode. In this method, apomorphine is first accumulated into the electrode via ion-exchange. The redox peaks at around +0.2 V (vs. Ag/AgCl) corresponding to a two-electron oxidation/reduction of apomorphine were used for detection with square-wave voltammetry. The effects of experimental parameters, such as, pH, accumulation potential, accumulation time, and square-wave voltammetric parameters were studied. Using this method with an accumulation time of 3 min, a linear calibration plot for apomorphine was obtained up to 4 × 10-7 M in pH 6.0 buffer solution with a detection limit of 3 × 10-9 M.",
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Square-wave voltammetric detection of apomorphine on a Nafion film modified glassy carbon electrode. / Cheng, Huei Lin; Sun, I-Wen.

In: Electroanalysis, Vol. 13, No. 18, 01.12.2001, p. 1544-1546.

Research output: Contribution to journalArticle

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