Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9617729 | Microporous and Mesoporous Materials | 2005 | 7 Pages |
Abstract
A novel sensitive chemical sensor probe has been fabricated. The sensor principle is based on silicalite-1 coated ATR (attenuated total reflection) elements and FTIR spectroscopy. The microporous silicalite-1 film enriches the analyte to the probe surface, thus increasing the sensitivity. At a relative pressure of n-hexane in helium of 6Â ÃÂ 10â5 the sensitivity of the probe is approximately 85 times higher for the silicalite-1 coated element compared to a 10Â cm transmission gas cell and ca. 180 times higher compared to an uncoated element. The performance of the probe is illustrated by determination of an adsorption isotherm for n-hexane in silicalite-1.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Catalysis
Authors
Mattias Grahn, Zheng Wang, Margareta Lidström-Larsson, Allan Holmgren, Jonas Hedlund, Johan Sterte,