Abstract
Electronic Nose (eN) systems use sensor arrays containing multiple probes to generate fingerprints for the sensitive and selective detection of Volatile Organic Compounds (VOCs). In this paper, we analyzed the effect of VOC concentrations and of temperatures from 5°C to 35°C on the equilibrium response profiles. Fingerprint patterns for 1-butanol are strongly conserved thanks to a quadratic normalization of the row equilibrium data obtained from our opto-eN with Surface Plasmon Resonance imaging (SPRi) detection. Furthermore, a power law behavior of the rescaling factor with VOC concentration was observed and led to a Limit Of Detection (LOD) of 70 ppb for 1-butanol at 25°C.
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