A direct thermal desorber as a sampling device for application specific sensor system

Static headspace is the simplest method to generate volatile from condensed phase samples in application specific sensor systems (ASSS, formerly ’Electronic Noses’). We developed a new method using dynamic extraction of volatile (stripping). Direct thermal desorption (DTD) coupled to gas sensors is...

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Bibliographic Details
Published in:Sensors and actuators. B, Chemical Chemical, 2006-07, Vol.116 (1), p.161-167
Main Authors: Mielle, Patrick, Souchaud, Marie, Landy, Pascale, Guichard, Elisabeth
Format: Article
Language:English
Subjects:
Computer programs
Desorption
Devices
Dynamical systems
Dynamics
Electronic Nose
Engineering Sciences
Extraction
Gas sensor
Other
Safety
Sampling
Sensors
Stripping
Volatile
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Summary:Static headspace is the simplest method to generate volatile from condensed phase samples in application specific sensor systems (ASSS, formerly ’Electronic Noses’). We developed a new method using dynamic extraction of volatile (stripping). Direct thermal desorption (DTD) coupled to gas sensors is a novel and promising solution. A software integration of the instantaneous volatile concentration over the stripping time, calculated from the sensor response after a proper linearization and calibration was used for quantitative measurements. It was applied for the estimation of released residual solvents from printed paper packaging. The results were found in good agreement with the actual ones provided by DTD/GC-FID and thus this technique could be considered as an alternative to GC-based quality control.
ISSN:0925-4005
1873-3077
DOI:10.1016/j.snb.2005.12.070