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Development and applications of time-resolving electrochemical detector by means of the fast-scan differential pulse voltammetry using a microelectrode

Research Project

Project/Area Number 03640493
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 分析・地球化学
Research InstitutionEhime University (1992)
Kyoto University (1991)

Principal Investigator

OKAZAKI Satoshi  Ehime University, Faculty of Science, Department of Chemistry, Associate Professor, 理学部, 助教授 (40025383)

Project Period (FY) 1991 – 1992
Project Status Completed (Fiscal Year 1992)
Budget Amount *help
¥2,000,000 (Direct Cost: ¥2,000,000)
Fiscal Year 1992: ¥300,000 (Direct Cost: ¥300,000)
Fiscal Year 1991: ¥1,700,000 (Direct Cost: ¥1,700,000)
Keywordsdifferential pulse voltammetry / rapid-response electrochemical measurement / cyclic voltammetry / microelectrode / fast potential scan method / time-resolving electrochemical detector / redox potential / ferrocene / 酸化還元電位 / 内部シ-ルド型マイクロ電極 / 時間分解微分パルスボルタモグラム / 時間分解電気化学検出法 / 高速微分パルスボルタンメトリ-
Research Abstract

A novel short-pulse first-scan cyclic differential pulse voltammetry (FSDPV) using a microelectrode have been developed.
The relationships between the electrode sizes and the pulse conditions have been examined in detail. It became clear that the available minimum pulse duration (tau_d)_<min> and rest time (tau_r)_<min> are related to the electrode size used ; i.e. (tau_d)_<min>=(tau_r)_<min>=20 and 50mus for 25- and 50-mum-radius Pt microelectrode, respectively.
The FSCDPV of ferrocene in acetonitrile was measured at a potential scan-rate of 10 V/s and the pulse conditions of E_a (pulse height)=10 mV and tau_d=tau_r=20mus. The observed voltammogram is in good agreement with the simulated one based on reversible one electron transfer process.
It became clear that the redox potential of ferrocene could be measured accurately with a relative standard deviation of 2% or better.
In conclusion, the FSCDPV method appears to be an attractive tool not only for the accurate measurements of redox potentials in electrochemistry but rather for analytical applications, particularly, for time-resolving voltammetric detection in the flowing solutions.

Report

(3 results)
  • 1992 Annual Research Report   Final Research Report Summary
  • 1991 Annual Research Report
  • Research Products

    (23 results)

All Other

All Publications (23 results)

  • [Publications] S.Nomura: "Fundamaental studies on fast scan stripping voltammetry" Electroanalysis. 3. 617-624 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Nomura: "Fabrication and evaluation of a shielded ultramicro-electrode for submicrosecond electroanalytical chemistry" Analyticai Chemistry. 63. 2665-2668 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岡崎敏: "最前線の電気化学-測定法の実際;微小電極を用いる電気化学測定法," 電気化学および工業物理化学. 60. 771-776 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S.Okazaki: "Development of short-pulse fast-scan cyclic differential voltammetry using a microelectrode" 電気化学および工業物理化学. 61. (1993)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Nomura: "Fundamental studies on fast scan stripping voltammetry" Electroanalysis. 3. 617-624 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Nomura: "Fabrication and evaluation of a shielded ultramicroelectrode for submicrosecond electroanalytical chemistry" Analytical Chemistry. 63. 2665-2668 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Okazaki: "Electrochemical measurements with a microelectrode" Denki Kagaku. 60. 771-776 (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] S. Okazaki: "Development of short-pule fast-scan cyclic differential pulse voltammetry using a microelectrode" Denki Kagaku. 61. (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1992 Final Research Report Summary
  • [Publications] 岡崎 敏: "最前線の電気化学 - 測定法の実際;微小電極を用いる電気化学測定法" 電気化学および工業物理化学. 60. 771-776 (1992)

    • Related Report
      1992 Annual Research Report
  • [Publications] S. Okazaki: "Development of short‐pulse fast‐scan cyclic differential pulse voltammetry using a microelectrode" 電気化学および工業物理化学. 61. (1993)

    • Related Report
      1992 Annual Research Report
  • [Publications] S.Nomura: "Evaluation and evaluation of shielded ultramaicroelectrode for submicrosecond electroanalytical chemistry." Anal.Chem.63. 2665-2668 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Nomura: "Fundamental studies on fast scan stripping voltammetry with a microelectrode." Electroanalysis. 3. 617-624 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Oyama: "Pulse electrolytic stoppedーflow method for the analysis of short lived intermediates generated in the electrooxidation of triphenylamine." Anal.Chem.63. 1387-1392 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Oyama: "Substituent effect on the reaction kinetics of electrogenerated 9ーsubstituted 10ーphenylanthracene cation radicals with water and methanol." J.Electroanal.Chem.304. 61-73 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Oyama: "Measurement of time resolved sbsorption spectra of species generated by fast electrochemical processes." Anal.Chim.Acta. 245. 199-202 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] M.Oyama: "Selective measurement of resonance Raman spectra and absorption spectra of different charged species produced in electrooxidation process of N,N'ーdimethylーN,N'ーdiphenylbenzidine by means of columnーelectrolysis continuousーflow method." Vibrational Spectroscopy. 1. 329-338 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Kato: "ESR and optical studies of the radical anion of C_<60>." Chem.Phys.Lett.186. 35-39 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Okazaki: "Redoxーpotential measurements of the biologically important substances by a columnーelectrolysis stoppedーflow method." Anal.Chem.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Okazaki: "Studies of substituent effects on the redoxーpotentials of 9ーsubstituted anthracene derivatives by means of a firstーscan cyclic votammetry." J.Electroanal.Chem.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Okazaki: "Measurement of time resolved resonance Raman spectra of shortーlived intermediates generated in the electrooxidation of triphenyl amine." J.Electroanal.Chem.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Okazaki: "Fast scan differential pulse voltammetry with a ultramaicroelectrode." Anal.Chem.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] S.Okazaki: "Time resolved differential pulse voltammetric detecter for flow analysis." Anal.Chem.(1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] 岡崎 敏(分担執筆): "機器分析のためのパソコンテクニック(南 茂夫編)" 講談社, (1992)

    • Related Report
      1991 Annual Research Report

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Published: 1991-04-01   Modified: 2016-04-21  

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