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Información tecnológica

On-line version ISSN 0718-0764

Abstract

ARRIETA, Álvaro Á; DIAZ, Jorge A  and  PALENCIA, Manuel S. Ability of Discrimination of Two Sensor Networks as Sensitive Units of a Mini-Electronic Tongue on Milk Samples. Inf. tecnol. [online]. 2017, vol.28, n.5, pp.143-150. ISSN 0718-0764.  http://dx.doi.org/10.4067/S0718-07642017000500015.

This paper presents the development of two sensor networks as initial stage for the design of a prototype electronic tongue. One of these sensor networks was joined by commercial screen printed electrodes and the other sensor network was assembled from modified electrodes with pyrrole and different dopants. The capacity of discrimination and classification of different types of samples of commercial milk to two sensor networks was analyzed. The results show that the use of modified sensors with conductive polymers allows obtaining more complete information, classifying correctly samples of milk with different organoleptic and physico-chemical properties by the use of two main components that reproduced the 67,6% of information. On the contrary, the commercial sensor network evaluated on the same group of samples and equal conditions, obtaining 56,5% of the variability of information, showing in this way lower classifying capacity of the samples analyzed.

Keywords : pyrrole; screen-printed electrodes; conductive polymers; milk; electronic tongue.

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