IJSR - International Journal of Scientific Research

A.Vijayalakshmi; J.Thamarai selvi

Volume : VI, Issue : VII, July - 2017

CALCIUM ION SELECTIVE ELECTRODE BASED ON POLYURETHANE NANOFIBRES IONOPHORE &ITS ANALYTICAL APPLICATION.

A. Vijayalakshmi, J. Thamarai Selvi

Abstract :

A new, efficient Calcium ion selective electrode has been prepared using Polyurethane nanofie based ionophore.The prepared ionophore is characterized by UV,FT–IR,XRD..The sensor exhibits a near Nernstian response for Ca(II) ion over a concentration range of 1.0 X 10^–8M to1.0 M . The proposed sensors revealed relatively good selectivity and high sensitivity for Ca(II) over a monovalent cations. It can be used with in the pH range of 5.57 to 6.24 . The effect of medium and the selectivity coefficient values was evaluated using fixed interference method.. It was also successfully used in the analysis of concentration of Calcium ion in various real samples.