Abstract
Oxygen sensing films were prepared by adsorbing the his(4,7-diphenyl-1,10-phenanthroline)ruthenium dye onto high surface area hydrophilic fumed silica and dispersing the ruthenium-loaded silica in a silicone rubber support. These sensing films possess desirable properties including higher luminescence intensity, larger response towards oxygen and more linear Stern-Volmer calibration curves than films prepared by simple mixing of the ruthenium dye with silicone rubber. However, the response time of these silica-containing films in the recovery cycle is ca. 30-50% longer than the films without silica.
| Original language | English |
|---|---|
| Pages (from-to) | 691-694 |
| Number of pages | 4 |
| Journal | Analyst |
| Volume | 124 |
| Issue number | 5 |
| DOIs | |
| Publication status | Published - 1 Jan 1999 |
ASJC Scopus subject areas
- Analytical Chemistry