A Dynamic Electrode for the Selective Determination of Aluminum in Solution

1,1’-[benzene-1,4-diyldimethylylidene]bis(3-phenylurea)) was synthesized andtested for the fabrication of aluminum selective membrane electrode. the membraneelectrode with dimethyl phthalate (dmp) as plasticizer works satisfactorily in the linearconcentration range of 1.3×10-6 to 1.0×10-1 m with best optimized composition of dmp:pvc: ionophore: natpb of 60:35:3:2 (%, w/w). the membrane electrode has a fast responsetime (5 s) and wide ph range (2.5–8.5). the selectivity coefficients were calculated withfixed interference method. the membrane sensor was also used as an indicator electrode forthe titration of al(iii) with edta and na3po4