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Proceedings Paper

Photometric sensors based on sol-gel porous glass doped with organic reagents
Author(s): Ovadia Lev; B. I. Kuyavskaya; Y. Sacharov; Claudio Rottman; A. Kuselman; David Avnir; M. Ottolenghi
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Paper Abstract

A new class of sensitive disposable sensors for determination of trace concentrations of water pollutants has been developed. It utilizes porous transparent silica glasses doped with organic photometric reagents. The silica sensors are produced at room temperature by the sol-gel procedure, i.e. by hydrolysis followed by polycondensation of tetraalkoxysilanes. Thus, we produced porous glasses doped with organic photometric reagents for the determination of typical cations, anions, pH, oxidation agents (e.g. disinfection agents) as well as typical air pollutants. A mathematical model for a flat plate monolithic iron sensor was developed and the predicted calibration curves were compared with the experimental response.

Paper Details

Date Published: 9 March 1993
PDF: 10 pages
Proc. SPIE 1716, International Conference on Monitoring of Toxic Chemicals and Biomarkers, (9 March 1993); doi: 10.1117/12.140289
Show Author Affiliations
Ovadia Lev, Hebrew Univ. of Jerusalem (Israel)
B. I. Kuyavskaya, Hebrew Univ. of Jerusalem (Israel)
Y. Sacharov, Hebrew Univ. of Jerusalem (Israel)
Claudio Rottman, Hebrew Univ. of Jerusalem (Israel)
A. Kuselman, Hebrew Univ. of Jerusalem (Israel)
David Avnir, Hebrew Univ. of Jerusalem (Israel)
M. Ottolenghi, Hebrew Univ. of Jerusalem (Israel)


Published in SPIE Proceedings Vol. 1716:
International Conference on Monitoring of Toxic Chemicals and Biomarkers

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