DYE-DOPED ORGANICALLY MODIFIED SILICA GLASS FOR FLUORESCENCE-BASED CARBON-DIOXIDE GAS-DETECTION

Authors
MALINS C MACCRAITH BD
Citation
C. Malins et Bd. Maccraith, DYE-DOPED ORGANICALLY MODIFIED SILICA GLASS FOR FLUORESCENCE-BASED CARBON-DIOXIDE GAS-DETECTION, Analyst (London. 1877. Print), 123(11), 1998, pp. 2373-2376
Citations number
37
Categorie Soggetti
Chemistry Analytical
Journal title
Analyst (London. 1877. Print) → ACNP
ISSN journal
00032654
Volume
123
Issue
11
Year of publication
1998
Pages
2373 - 2376
Database
ISI
SICI code
0003-2654(1998)123:11<2373:DOMSGF>2.0.ZU;2-C
Abstract
The sol-gel process was used to prepare organically modified silica gl ass in which the fluorescent pH-sensitive reagent 1-hydroxypyrene-3,6, 8-trisulfonate is entrapped. An ion-pair approach was used to incorpor ate the hydrophilic dye in the hydrophobic glass. Good sensitivity to gas phase carbon dioxide was observed in the 0-20% range, with rapid r esponse. A solid-state optical sensor device is described which could lead to thin film waveguide sensors suitable for mass production.