Preparation of pH sensors by covalent linkage of dye molecules to the surface of polystyrene optical fibers
- 5 September 1991
- journal article
- research article
- Published by Wiley in Journal of Applied Polymer Science
- Vol. 43 (5) , 925-928
- https://doi.org/10.1002/app.1991.070430510
Abstract
Functional Bromothymol Blue dyes containing amino groups in position 3 have been immobilized on the surface of chlorosulfonated polystyrene fibers and characterized by ESCA. Upon laser irradiation, a modified fiber has been used as an antenna fiber in a twisted pair of plastic optical fibers immersed in aqueous solutions having various pH. The light transmitted to the receiving fiber depends on pH values. This device can be used as a pH sensor.Keywords
This publication has 6 references indexed in Scilit:
- pH Sensing by Fibre OpticsOptica Acta: International Journal of Optics, 1986
- Optosensing at active surfaces — a new detection principle in flow injection analysisAnalytica Chimica Acta, 1985
- Fibre-optic pH probe based on the use of an immobilised colorimetric indicatorThe Analyst, 1984
- Studies with immobilised chemical reagents using a flow-cell for the development of chemically sensitive fibre-optic devicesThe Analyst, 1984
- Fiber optic pH probe for physiological useAnalytical Chemistry, 1980
- Chemical Modification of Polymers. 13. Sulfonation of Polystyrene SurfacesMacromolecules, 1980