Thamarai Selvi, JAiswarya Lakshmy, P R2017-02-152017-02-152012https://ir.avinuty.ac.in/handle/avu/1386A heterogeneous precipitates have been as ion carriers for the preparation of Na (I) selective membrane sensor. The electrodes give near-nernstian responses in linear concentration range of IM to IxlO'^M with detection limits of the order of 10~*M . The stable potentiometric signals are obtained with in a short time period of 3 minutes. The effect of pH, and the effect of medium have been studied found to give a better response. Selectively coefficient values (log K'^°' ) have been evaluated using fixed interference method. The sensors have also been as an indicator electrode in commercially available products.