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The intention for using microporous polymer is the enhancement of the selectivity and the sensitivity. Microporous polymers show the possibility through the control for analyte´s mobility into the matrix to extend the sensitivity spectrum for chemo sensors. A sensitive layer with molecular sieving properties is introduced in a sensor array, enhancing the discrimination capabilities of the sensing method tremendously. The volume and the size of the analytes were correlated with the sorption of the analytes in the glassy polymer UE2010. It was found that the size selective sensitive layers of the glassy polymer can discriminate effectively analytes, which are bigger or smaller than the mean pore size. The kinetic diameter ?kin of an adsorbate molecule is the molecular scale to correlate the sorption behaviour of a molecule with the aperture dimension of molecular sieves as zeolites or e.g. microporous polymers. ?kin is widely employed to describe kinetics, permeability and the permselectivity of adsorbate molecules.
Georg Belge,Dirk Nopper,Martin Herold,Guenter Gauglitz,R. Buchold, andGerald Gerlach
"Microporous layer for selective detection of VOCs in gases and liquids", Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001); https://doi.org/10.1117/12.417435
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Georg Belge, Dirk Nopper, Martin Herold, Guenter Gauglitz, R. Buchold, Gerald Gerlach, "Microporous layer for selective detection of VOCs in gases and liquids," Proc. SPIE 4205, Advanced Environmental and Chemical Sensing Technology, (26 February 2001); https://doi.org/10.1117/12.417435