The novel exchanger titanium(IV) tungstovanadate has been prepared by sol-gel method. The characterization of sensor has been done with FTIR, SEM, EDS and X-ray diffraction studies. Membranes containing different composition of electroactive material and epoxy resin as binder were prepared. The membrane with 60 % electroactive material and 40 % epoxy binder gives the best response. Potentiometric result shows that the sensor can be used in the concentration range of 10-7 to 10-1 M Cd(II) ions with a near Nernstian slope of 21 mV/ decade. The electrode shows a fast response time of < 10 sec. The working pH range of the electrode is 2.62 to 8.66 and it behaves well in the partially non aqueous medium upto 30 % concentration of ethanol, methanol and acetone. Fixed interference method was used for determining the selectivity coefficient with respect to different metal ions like Pb 2+ , Cr 3+ , La 2+ , Co 2+ , Hg 2+ , As 3+ , Cu 2+ , Ni 2+ , Mn 2+ , Sm 3+ etc. and effect of internal solution was also studied. The developed sensor can be used as an indicator electrode in the potentiometric titration of Cd(II) against EDTA and oxalic acid.
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