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Electrochemical detection of ascorbic acid and serotonin at a boron-doped diamond electrode modified with poly(N,N-dimethylaniline)

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Abstract

The electrochemical oxidation of ascorbic acid (AA) and serotonin (5-HT) at a boron-doped diamond (BDD) electrode modified with poly(N,N-dimethylaniline) (PDMA) has been studied. The oxidation potentials of 5-HT and AA overlapped after mixing of the two chemicals, due to interference of AA at the bare BDD electrode. However, after modifying the BDD electrode with a cationic polymer (PDMA), the oxidation peaks of 5-HT and AA were separated. PDMA-coated BDD electrodes can be used for simultaneous detection of these species.

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Authors and Affiliations

  1. Department of Industrial and Chemical Engineering, Chungbuk National University, San 48, Geshindong, Cheong-ju, Chungbuk, 361-763, South Korea

    Soo-Gil Park, Eun-In Cho & Jin-Hee Hwang

  2. Graduate School of Science and Engineering, Waseda University, Shinjuku, Tokyo, 169-8555, Japan

    Jong-Eun Park

  3. Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama, 226-8502, Japan

    Takeo Ohsaka

Authors
  1. Soo-Gil Park
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  2. Jong-Eun Park
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  3. Eun-In Cho
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  4. Jin-Hee Hwang
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  5. Takeo Ohsaka
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Correspondence to Soo-Gil Park.

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Park, SG., Park, JE., Cho, EI. et al. Electrochemical detection of ascorbic acid and serotonin at a boron-doped diamond electrode modified with poly(N,N-dimethylaniline). Res Chem Intermed 32, 595–601 (2006). https://doi.org/10.1163/156856706777973736

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  • DOI: https://doi.org/10.1163/156856706777973736

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