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Fluoro Reactands and Dual Luminophore Referencing: A Technique To Optically Measure Amines

Mohr, Gerhard J. ; Klimant, Ingo ; Spichiger-Keller, Ursula E. ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 15 Apr 2011 09:19


Abstract

An optical sensor for aqueous 1-butylamine is presented which combines two novel techniques: A fluorescent indicator dye (fluoro reactand) embedded in a thin polymer layer performs a reversible chemical reaction with the analyte, causing changes in luminescence intensity. At the same time, inert phosphorescent beads dispersed within the polymer layer provide luminescence signals that act as an ...

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