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Mobile Odor Testers for Soils or Granular Materials

  • W. Andlauer
  • M. Kochbeck
  • R. Körber
  • J. Goschnick

Abstract

Localization and characterization of volatile organic pollutants in soils is the aim of a rapid on-site analysis. In order to evaluate the potential of an electronic nose for direct online detection of volatile soil pollutants. Model gas exposures and practical tests were performed using KAMINA, the Karlsruhe MicroNose with two different sampling assemblies in direct sniffing mode. Odor testing with an electronic nose is nothing else than gas analysis of usually complex gas ensembles in an integral manner. Contrary to the classical description of a gas mixture as a sum of components with individual concentrations the electronic nose detects the gas ensemble as an entity with an integral concentration. However, similar to human odor perception the integral can be quantitatively divided into components which themselves may be complex mixtures. Owing to the measuring principle all pollutants are detectable as long as their volatility makes them appear in the gas phase. Therefore the term ‘odor’ should be understood as a pollutant signature in the gas phase no matter whether the human nose can smell it or not.

Keywords

Granular Material Electronic Nose Toluene Concentration Insertion Probe Clean Soil 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    Goschnick,J.: “An Electronic Nose for Intelligent Consumer Products Based on Gas Analytical Gradient Microarray ”; to be published in Microelectronic Engineering, Proceedings of the Micro-and Nano-Engineering Conference, Jena, 2000Google Scholar
  2. [2]
    W. Göpel, K.-D. Schierbaum: „Electronic Conductance and Capacitance Sensors“; in Sensors, Vol.2 „Chemical and Biochemical Sensors“; eds. W. Göpel, T. A. Jones, M. Kleitz, J. Lundström &T.Seiyama; Verlag VCH, Weinheim, New York 1991, p. 429CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media Dordrecht 2002

Authors and Affiliations

  • W. Andlauer
    • 1
  • M. Kochbeck
    • 1
  • R. Körber
    • 1
  • J. Goschnick
    • 1
  1. 1.Forschungszentrum KarlsruheInstitut für Instrumentelle AnalytikKarlsruheGermany

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