Electronic Tongue Composed of Mini-Electrode Array in Flow Cell

소형전극 어레이로 구성한 흐름계형 전자혀

  • Shim, Jun Ho (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Shim, Jae Hoon (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Seo, Sung Seok (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Oh, Hyun Joon (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Han, Jong Ho (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Nam, Hakhyun (Chemical Sensor Group, Department of Chemistry, Kwangwoon University) ;
  • Cha, Geun Sig (Chemical Sensor Group, Department of Chemistry, Kwangwoon University)
  • 심준호 (광운대학교 화학과 화학센서그룹) ;
  • 심재훈 (광운대학교 화학과 화학센서그룹) ;
  • 서성석 (광운대학교 화학과 화학센서그룹) ;
  • 오현준 (광운대학교 화학과 화학센서그룹) ;
  • 한종호 (광운대학교 화학과 화학센서그룹) ;
  • 남학현 (광운대학교 화학과 화학센서그룹) ;
  • 차근식 (광운대학교 화학과 화학센서그룹)
  • Received : 2004.03.10
  • Accepted : 2004.03.26
  • Published : 2004.06.25

Abstract

A taste sensor system composed of mini electrode array was built in a flow cell. Potentiometric signals from 9 electrodes were collected for drinking waters and alcoholic beverages which were diluted in a low concentration buffer solution (0.005 M Tris-$H_2SO_4$ pH 7.2) for the measurement. The measured results were treated with the principal component analysis (PCA), and grouped on a two or three dimensional PCA coordinate to discriminate the tastes of each beverage. It is demonstrated that the taste sensor system of this work may be used for the quality control of beverages in production or the examination of their taste variation in the market.

Keywords

taste sensor;electronic tongue;potentiometric sensor;ion-selective electrode;principal component analysis (PCA)

Acknowledgement

Supported by : 보건복지부

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