Electrochemical detection of ascorbic acid and serotonin at a boron-doped diamond electrode modified with poly(N,N-dimethylaniline) |
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| Authors: | Soo-Gil Park Jong-Eun Park Eun-In Cho Jin-Hee Hwang Takeo Ohsaka |
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| Institution: | (1) Department of Industrial and Chemical Engineering, Chungbuk National University, San 48, Geshindong, Cheong-ju, Chungbuk, 361-763, South Korea;(2) Graduate School of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan;(3) Department of Electronic Chemistry, Tokyo Institute of Technology, 4259 Nagatsuda, Midori-ku, Yokohama 226-8502, Japan |
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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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| Keywords: | Electropolymerization boron-doped diamond electrode ascorbic acid serotonin square wave voltammetry |
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