Analytica Chimica Acta 2014-02-17

Photocured thiol-ene based optical fluorescence sensor for determination of gold(III).

Soner Cubuk, Memet Vezir Kahraman, Ece Kök Yetimoğlu, Sibel Kenan

Index: Anal. Chim. Acta 812 , 215-21, (2014)

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Abstract

This study describes the preparation and the characterization of a new thiol-ene based polymeric fluorescence sensor by photo initiated polymerization of trimethylolpropane tris(3-mercaptopropionate), 2-hydroxyethylacrylate, and 2,4,6-triallyloxy-1,3,5-triazine which are used as monomers and also a photo initiator (2,2-dimethoxy-2-phenylacetophenone) for its usage as optical sensor for gold ions. The thiol-ene based polymeric membrane sensor was characterized by using attenuated total reflectance-fourier transform infrared spectroscopy (ATR-FTIR) and scanning electron microscopy (SEM). The response characteristics of the sensors including dynamic range, pH effect, response time, and the effect of foreign ions were investigated. Fluorescence spectra showed that the excitation/emission maxima of the membrane were at 379/425 nm, respectively.Copyright © 2014 Elsevier B.V. All rights reserved.