Proceedings of the KOSOMBE Conference (대한의용생체공학회:학술대회논문집)

The Korean Society of Medical and Biological Engineering (대한의용생체공학회)
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Implementation of 4-Channel Electrolyte Analyzer using ISFET Microsensors

ISFET 마이크로센서를 이용한 4-채널 전해질 분석기의 구현

  • Bae, S.K. (Department of Electronic Engineering, Kyungpook National University) ;
  • Kim, K.Y. (Department of Electronic Engineering, Kyungpook National University) ;
  • Won, C.H. (Department of Electronic Engineering, Kyungpook National University) ;
  • Cho, B.W. (Department of Electronic Engineering, Kyungpook National University) ;
  • Kim, C.S. (Department of Electronic Engineering, Kyungpook National University) ;
  • Sohn, B.K. (Department of Electronic Engineering, Kyungpook National University) ;
  • Cho, J.H. (Department of Electronic Engineering, Kyungpook National University)
  • 배상곤 (경북대학교 전자공학과) ;
  • 김계영 (경북대학교 전자공학과) ;
  • 원철호 (경북대학교 전자공학과) ;
  • 조병욱 (경북대학교 전자공학과) ;
  • 김창수 (경북대학교 전자공학과) ;
  • 손병기 (경북대학교 전자공학과) ;
  • 조진호 (경북대학교 전자공학과)
  • Published : 1996.05.17
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Abstract

In this paper, we designed 4-channel electrolyte analyzer that can measure simultaneousely the 4 electrolytes - pH, $pNa^{+}$, $pCa^{2+}$, and $pK^{+}-$ using 2-point calibration and implemented it. Developed electrolyte analyzer consists of singal processing part, actuator part and control unit for sample flow system. To implement reliable instrument, design considerations are emphasized on flow system and sample chamber that requires small sample volume and prevent air contact with sample solution. In addition to the hardware design, we developed system software which controls full measuring process. After system developed, we verified the system performance by the test measurement for pH, $pNa^{+}$, $pCa^{2+}$, and $pK^{+}$ value.

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