Thamarai Selvi, J2017-11-082017-11-082011https://ir.avinuty.ac.in/handle/avu/3619A heterogeneous precipitate have been used as ion carriers for the preparation ofNa(I) selective membrane sensor. This electrode give near-nernstian responses in the linear concentration range o f IM to ] X10'^ M with detection limits ofthe order of 10'^ M. The stable potentiometric signals are obtained with in a short time period of 4 minutes.The effect o f pH and the effect of medium have been studied found to give a better response selectivity coefficient values (log ) have been evaluated using fixed interference method.The sensor have also been used as indicator electrode in commercial products.