29 September 1995 Comparison between stationary intensity and lifetime luminescence measurements with fiber optic oxygen sensors containing [Ru(4.7Ph2phen)3]2+ in silicone polymer
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Proceedings Volume 2508, Chemical, Biochemical, and Environmental Fiber Sensors VII; (1995) https://doi.org/10.1117/12.221743
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany
Abstract
A behavior often registered in intensity based measurements of such sensors are the downcurved STERN-VOLMER-plots, which result in problems of reproducibility and calibration, especially between different sensors of the same type. Another effect is the disagreement between lifetime- and intensity-based STERN-VOLMER-plots, which should be the same in case of dynamic quenching. For a fiber optic system with the [Ru(4.7Ph2phen)3]2+-complex in polydimethylsiloxan on the fiber tip mono- and multi-exponential decay models have been examined. There are no significant differences between monoexponential fitted lifetimes and weighted mean lifetimes from multi-exponential models. STERN-VOLMER-plots from lifetime measurements are in good agreement with intensity based measurements on fresh prepared samples.
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Birgit Hannemann, Birgit Hannemann, Adriana Tamachkiarowa, Adriana Tamachkiarowa, Christian V. Radehaus, Christian V. Radehaus, } "Comparison between stationary intensity and lifetime luminescence measurements with fiber optic oxygen sensors containing [Ru(4.7Ph2phen)3]2+ in silicone polymer", Proc. SPIE 2508, Chemical, Biochemical, and Environmental Fiber Sensors VII, (29 September 1995); doi: 10.1117/12.221743; https://doi.org/10.1117/12.221743
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