Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Detection of Bio-chemical by Boron-doped Diamond Electrode

붕소가 도핑된 다이아몬드 전극을 이용한 생체화학물질의 검출

  • Lee, Eun-Ju (Dept. of Industrial and Chemical Engineering, Chungbuk Nat'l University) ;
  • Fujishima, A. (Dept. of Applied Chemistry Faculty of Eng., Tokyo Univ.) ;
  • Park, Soo-Gil (Dept. of Industrial and Chemical Engineering, Chungbuk Nat'l University)
  • 이은주 (충북대학교 공업화학과) ;
  • 등도소 (일본 동경대학 응용화학부) ;
  • 박수길 (충북대학교 공업화학과)
  • Published : 2002.11.09
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Abstract

Selective, highly stable determination of serotonin was achieved in cyclic voltammetric measurement carried out at electrochemically treated conductive boron-doped diamond electrode. Boron-doped diamond electrodes were prepared on single crystal Si wafers by microwave plasma chemical vapor deposition and $B_2O_3$ was dissolved in acetone/methanol(9:1) mixture solution so that the B/C weight ratio ca. $10^4ppm$. Serotonin is a kind of indoleamines, which secreted from adrenal marrow cells. The serious problem to detection of serotonin is the interference phenomena of electroactive constituent, including AA. In this study, electrochemical treatment of HDD was carried out to discriminate between serotonin and AA responses. Experimental results showed that the peak potential of AA oxidation shift to the positive direction and the oxidation peak of serotonin was unchanged.

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