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Classification of complex gas mixtures from automotive leather using an electronic nose
Löfvendahl, A., Volvo Car Corporation, 98351 PV 1B, S-405 08, Göteborg, Sweden.
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .
Linköping University, The Institute of Technology. Linköping University, Department of Physics, Chemistry and Biology, Applied Physics .
2000 (English)In: Analytica Chimica Acta, ISSN 0003-2670, E-ISSN 1873-4324, Vol. 403, no 1-2, 31-38 p.Article in journal (Refereed) Published
Abstract [en]

A semiconductor gas sensor array combined with a routine for pattern recognition - a so-called electronic nose - for the detection of gas emissions from the leather used in car compartments is described. The gas sensors are 10 metal oxide semiconductor field effect transistors (MOSFETs) with gates of thin, catalytic metals, and five semiconducting metal oxide sensors. The sensor array data are processed by multivariate means using principal component analysis (PCA) and are shown to give similar and add additional information compared to gas chromatography-mass spectrometry (GC- MS) and a human sensory panel. The total volatile organic compound concentration as measured by GC did not differ between good and bad samples and could therefore not be used as a quality control tool, whilst the electronic nose together with pattern recognition could readily discover the deviating samples with unusual emitting gases. This set-up could be useful in on-line quality monitoring systems to detect anomalies in incoming car interior trim materials.

Place, publisher, year, edition, pages
2000. Vol. 403, no 1-2, 31-38 p.
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:liu:diva-47709DOI: 10.1016/S0003-2670(99)00604-2OAI: oai:DiVA.org:liu-47709DiVA: diva2:268605
Available from: 2009-10-11 Created: 2009-10-11 Last updated: 2017-12-13

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Winquist, FredrikLundström, Ingemar

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