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Gas sensitive FETs based on SiC have been studied for the discrimination and quantification of hazardous volatile organic compounds (VOCs) in the low ppb range. The sensor performance was increased by temperature cycled operation (TCO) and data evaluation based on multivariate statistics, here Linear Discriminant Analysis (LDA). Discrimination of formaldehyde, naphthalene and benzene with varying...
Potentiometric electrochemical multi-sensors’ performance highly depends on the capability of selecting the best set of sensors. Indeed, signals are usually collinear resulting in over-fitted multivariate models with low predictive applicability. In this work, a comparative study was made to evaluate the predictive performance of classification models coupled with heuristic or meta- heuristic variable...
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