Implementación y evaluación de una nariz electrónica para la detección de alcoholes lineales

Ana Lucía Paredes-Doig, María del Rosario Sun Kou, Gino Picasso-Escobar, Elizabeth Doig-Camino, Germán Comina

Producción científica: Contribución a una revistaArtículorevisión exhaustiva

4 Citas (Scopus)


An electronic nose for the detection of alcohols, easy to use and inexpensive as compared to traditional electronic noses, was developed. This nose is based on four SnO2 gas sensors (two commercial and two homemade), an irregular pneumatic system, hardware and a software for data acquisition and a software for pattern recognition. The nose behavior and the working conditions with vapor samples of alcohols (methanol, ethanol, n-butanol and 1-octanol) were evaluated. Alcohols could be detected with the array of prepared sensors and could be also differentiated from each other by using principal component analysis (PCA). The detection order for linear alcohols followed the order: methanol > ethanol > n-butanol > 1- octanol. It was also found that by using PCA and performing a standardization of data in software pattern recognition so, the total variance of such information increases from 76% up to 85%. This result confirms that a simple and inexpensive nose can rank well the tested samples.

Título traducido de la contribuciónImplementation and evaluation of an electronic nose for the alcohols detection
Idioma originalEspañol
Páginas (desde-hasta)12-18
Número de páginas7
PublicaciónRevista Colombiana de Quimica
EstadoPublicada - 1 may. 2016

Palabras clave

  • Alcohol classification
  • Array of sensors
  • Electronic nose
  • Gas sensors
  • PCA
  • Tin oxide


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