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Dual lifetime referenced optical sensor membrane for the determination of copper(II) ions

Mayr, Torsten ; Klimant, Ingo ; Wolfbeis, Otto S. ; Werner, Tobias
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Date of publication of this fulltext: 06 Jun 2011 11:25


Abstract

A sensor membrane has been developed for the determination of copper(II) ions that displays excellent performance due to internal referencing of luminescence intensities. The applied sensing scheme (dual lifetime referencing) makes use of the indicator lucifer yellow (LY) and an inert reference luminophore (a ruthenium complex entrapped in polyacrylonitrile beads). Both are contained in a ...

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