Articles | Volume 7, issue 1
Special issue:
Regular research article
05 Apr 2018
Regular research article |  | 05 Apr 2018

Highly sensitive benzene detection with metal oxide semiconductor gas sensors – an inter-laboratory comparison

Tilman Sauerwald, Tobias Baur, Martin Leidinger, Wolfhard Reimringer, Laurent Spinelle, Michel Gerboles, Gertjan Kok, and Andreas Schütze

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Cited articles

Barsan, N. and Weimar, U.: Conduction Model of Metal Oxide Gas Sensors, J. Electroceram., 7, 143–167,, 2001. 
Bastuck, M., Leidinger, M., Sauerwald, T., and Schütze, A.: Improved quantification of naphthalene using non-linear Partial Least Squares Regression, in: 16th International Symposium on Olfaction and Electronic Nose, Dijon, France, 28 June–1 July 2015, 1–2, available at: (last access: 2 February 2018), 2015a. 
Bastuck, M., Bur, C., Sauerwald, T., Spetz, A. L., Andersson, M., and Schütze, A.: Quantification of Volatile Organic Compounds in the ppb-range using Partial Least Squares Regression, Proceedings SENSOR 2015, 19–21 May 2015, Nuremberg, Germany, 584–589,, 2015b. 
Bastuck, M., Baur, T., Schütze, A., and Sauerwald, T.: DAV3E: Data Analysis and Verification/Visualization/Validation Environment für die Multisensor-Datenfusion, 18. GMA/ITG-Fachtagung Sensoren und Messsyst. 2016, 10–11 May 2016, Nuremberg, Germany, 729–734,, 2016. 
Batterman, S., Chambliss, S., and Isakov, V.: NIH Public Access, Atmos. Environ., 94, 518–528, 1994. 
Short summary
For detection of benzene, a multichannel gas sensor system was tested in two different laboratories at the concentration range from 0.5 ppb up to 10 ppb. A model is used to extract the channels and multilinear regression is done to compensate cross interference to other gases. Depending on the measurement conditions, the quantification accuracy is between ±0.2 ppb and ±2 ppb. Regression models for one laboratory were transferable between the labs under comparable measurement conditions.
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