An 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid)-immobilized electrode for the simultaneous detection of dopamine and uric acid in the presence of ascorbic acid

Yi Kai Chih, Ming Chang Yang

研究成果: Article同行評審

28 引文 斯高帕斯(Scopus)

摘要

An 2,2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) (ABTS)-immobilized carbon nanotube (CNT) electrode was used to simultaneously detect dopamine (DA) and uric acid (UA) in the presence of ascorbic acid (AA) with differential pulse voltammetry. When ABTS was immobilized onto the CNT electrode in the presence of DA, UA and 100. μM AA, the sensitivity to DA increased from 0.600 (±0.013) to 1.334 (±0.010). μA/μM in the concentration ranges of 0.90-10. μM and 1.87-20. μM, respectively, and the sensitivity to UA increased from 0.030 (±0.005) to 0.078 (±0.006). μA/μM in the concentration ranges of 2.16-240. μM and 3.07-400. μM, respectively. These findings demonstrate that the ABTS-immobilized CNT electrode attained a higher sensitivity to UA and also a wider linear range of concentrations.

原文English
頁(從 - 到)44-51
頁數8
期刊Bioelectrochemistry
91
DOIs
出版狀態Published - 2013 六月

All Science Journal Classification (ASJC) codes

  • Biophysics
  • Physical and Theoretical Chemistry
  • Electrochemistry

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