Impedance e-tongue instrument for rapid liquid assessment
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Date
Advisor
Coadvisor
Graduate program
Undergraduate course
Journal Title
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Volume Title
Publisher
American Institute of Physics (AIP)
Type
Article
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Acesso aberto
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Abstract
We present a compact and easy to handle instrument developed to perform rapid analysis of liquids utilizing an electronic tongue system. Briefly, the e-tongue used here is based on impedance measurements of an array of sensing units fabricated with ultrathin films of different materials deposited onto gold interdigitated electrodes. The instrument has the capability of measuring up to eight different sensor sets, each comprising an array of eight sensing units, and can perform a series of measurements in less than half of an hour. Additionally, there is a user-friendly software interface for instrument control, allowing the statistical correlation of samples using principal component analysis.
Description
Keywords
electric impedance measurement, electronic tongues, gold, principal component analysis
Language
English
Citation
Review of Scientific Instruments. Melville: Amer Inst Physics, v. 80, n. 2, p. 3, 2009.
