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Optical sensor for seawater salinity

DOI to cite this document:
Huber, Christian ; Klimant, Ingo ; Krause, Christian ; Werner, Tobias ; Mayr, Torsten ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 06 Jun 2011 12:29


An optical sensor for the measurement of salinity in seawater has been developed. It is based on a chloride-quenchable fluorescent probe (lucigenin) immobilized on a Nafion film. Two approaches for measuring salinity via chloride concentration are presented. In the first, a change in salinity corresponds to a change in the fluorescence intensity of lucigenin. In the second, the fluorescence ...


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