Articles | Volume 3, issue 2
https://doi.org/10.5194/jsss-3-253-2014
https://doi.org/10.5194/jsss-3-253-2014
Regular research article
 | 
21 Oct 2014
Regular research article |  | 21 Oct 2014

Selective detection of hazardous VOCs for indoor air quality applications using a virtual gas sensor array

M. Leidinger, T. Sauerwald, W. Reimringer, G. Ventura, and A. Schütze

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Cited articles

Brinke, J. T., Selvin, S., Hodgson, A. T., Fisk, W. J., Mendell, M. J., Koshland, C. P., and Daisey, J. M.: Development of New Volatile Organic Compound (VOC) Exposure Metrics and their Relationship to "Sick Building Syndrome" Symptoms, Indoor Air, 8, 140–152, https://doi.org/10.1111/j.1600-0668.1998.t01-1-00002.x, 1998.
Bur, C., Bastuck, M., Lloyd Spetz, A., Andersson, M., and Schütze, A.: Selectivity enhancement of SiC-FET gas sensors by combining temperature and gate bias cycled operation using multivariate statistics, Sensor. Actuat. B-Chem., 193, 931–940, https://doi.org/10.1016/j.snb.2013.12.030, 2014.
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Conrad, T., Reimringer, W., and Rachel, T.: Modulare Systemplattform zur Bewertung der Luftqualität in Innenräumen basierend auf temperaturmodulierten Metalloxid-Gassensoren, ITG/GMA Fachtagung Sensoren und Messsysteme 2014, ITG Fachbericht 250, VDE Verlag, 2014.
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Short summary
An approach for detecting hazardous volatile organic compounds (VOCs) in ppb and sub-ppb concentrations is presented. Using metal oxide semiconductor (MOS) gas sensors in temperature cycled operation, VOCs in trace concentrations are successfully identified against a varying ethanol background of up to 2 ppm. For signal processing, linear discriminant analysis is applied to single sensor data and sensor fusion data. Integrated gas sensor systems using the same MOS sensors were characterized.