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Fluorescent potential-sensitive dyes for use in solid state sensors for potassium ion

Murkovic, Ivana ; Lobnik, Aleksandra ; Mohr, Gerhard J. ; Wolfbeis, Otto S.
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Date of publication of this fulltext: 07 Jun 2011 11:18


Abstract

Fluorescent potential-sensitive dyes (PSDs) were screened for use in potassium-sensitive optical sensor membranes. A potassium-sensitive plasticized PVC layer containing valinomycin as an ion carrier, lipophilic borate salt as an anionic additive, and a PSD was chosen as a model for evaluating the applicability of PSDs. A commercial carbocyanine dye (3,3′-dihexadecyloxacarbocyanine perchlorate) ...

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