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Electronic Tongue Composed of Mini-Electrode Array in Flow Cell  

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)
Publication Information
Analytical Science and Technology / v.17, no.3, 2004 , pp. 217-224 More about this Journal
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);
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