Voltammetric Determination of Dopamine in a Mixture of Dopamine and Ascorbic Acid at a Deactivated Polythiophene Film Modified Electrode.

• GAO Zhiqiang

  Department of Chemistry, National University of Singapore

• YAP David

  Department of Chemistry, National University of Singapore

• ZHANG Yimin

  Luoyang Technological Institute

書誌事項

タイトル別名

• Voltammetric Determination of Dopamine

抄録

The voltammetric responses of dopamine (DA) and ascorbic acid (AA) at a deactivated polythiophene (PT) film modified electrode were investigated. It was found that DA displays nearly identical voltammetric response at both a bare and the modified electrode, while the voltammetric signal of AA is greatly suppressed at the modified electrode due to the repul-sion between it and the deactivated film. Various experimental parameters affecting the voltammetric responses of DA and AA were studied. The modified electrode was demonstrated to be very useful in selectively determining DA in a mixture of DA and AA. At a 0.5 μm deactivated PT film modified electrode the calibration curve of DA was linear over the range of 0.8 μM - 1.0 mM in the presence of 1.0 mM AA. The detection limit was 0.4 μM.

収録刊行物

• Analytical Sciences

  Analytical Sciences 14 (6), 1059-1063, 1998

  社団法人 日本分析化学会

キーワード

• Analytical Chemistry

詳細情報

• CRID: 1390282679228891648
• NII論文ID: 130004439922
• NII論文ID: 10002417719
• NII書誌ID: AA10500785
• DOI: 10.2116/analsci.14.1059
• COI: 1:CAS:528:DyaK1cXotFSku70%3D
• ISSN: 13482246
• ISSN: 09106340
• NDL書誌ID: 4618378
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4618378
• Web Site: https://link.springer.com/content/pdf/10.2116/analsci.14.1059.pdf
• Web Site: https://link.springer.com/article/10.2116/analsci.14.1059/fulltext.html
• Web Site: http://www.jstage.jst.go.jp/article/analsci/14/6/14_6_1059/_pdf
• 本文言語コード: en
• データソース種別:
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