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The effect of polymeric supports and methods of immobilization on the performance of an optical copper(II)-sensitive membrane based on the colourimetric reagent Zincon

Oehme, Ines ; Prattes, Susanne ; Wolfbeis, Otto S. ; Mohr, Gerhard J.
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Date of publication of this fulltext: 20 May 2011 06:30


Abstract

A comparative study on the effect of different immobilization methods and matrix materials on the performance of copper(II)-sensitive membrane layers is presented. The indicator dye Zincon was immobilized in hydrophilic and hydrophobic polymers by various methods including: (a) physical entrapment of the Zincon-tetraoctylammonium ion pair in plasticized PVC, hydrogel, polystyrene, ethyl ...

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