Potentiometric Performances of Thiuram Sulphides as Coated-Wire Ion Selective Electrode for Ag (I) Ions

Abstract

A new wire coated silver ion-selective electrode with a wider concentration range(10-6 M-10-1 M) was developed using TMTMS & TETDS as a neutral carrier. An optimum mixture of PVC, neutral carrier, plasticizer (NPOE) was used in preparing the coating. The effect various parameters, such as the coating composition and solution pH on the efficiency of the electrode are described. It has shown slope of 60mv/decade over a concentration range 10-1 M-10-6 M with TETDS and slope of 59mv/decade over a concentration range 10-1 M-10-5 M with TMTMS. The selectivity co-efficient of the electrode towards various interfering ions, response time were estimated. The developed electrode used as an excellent indicator electrode.