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Microsecond lifetime-based optical carbon dioxide sensor using luminescence resonance energy transfer

DOI to cite this document:
Neurauter, Gerhard ; Klimant, Ingo ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 06 Jun 2011 11:37


A lifetime-based optical sensor for the measurement of dissolved and gaseous carbon dioxide has been developed. The basic principle is radiationless energy transfer from ruthenium(II)-4,40-diphenyl-2,20-bipyridyl as luminescent donor to thymol blue (a common pH indicator) as acceptor, both embedded in a hydrophobic matrix. In the presence of carbon dioxide thymol blue is protonated and changes ...


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