ELECTROD CU MATRICE POLIMERICĂ, SELECTIV LA SURFACTANTUL ANIONIC LAURILSULFAT

Mihail REVENCO, Mariana DÎRU, Waell A.A. DAYYIH* Facultatea de Chimie şi Tehnologie Chimică *University Petra, Amman, Jordan

Abstract

new anionic surfactant sensor has been prepared, based on trinuclear chromium(III) pivalate as sensing material incorporated into the plasticized PVC-membrane. The sensor exhibited Nernstian response (59-61mV/decade) in the region between 10-3-10-5mol/l for dodecylsulfate. The potentiometric selectivity coefficients were determined by fixed interferential method. Application of these electrodes to the analysis of some products containing anionic surfactants has been realized and results have been compared with the two-phase titration method.