A novel ion- selective electrode sensor based on crafted polymer sugar thia crown ether for the determination of Cadmium (II)

A Cadmium (II) ion-selective electrode (ISE) based on Thia polymeric crown ether (SPCE-Cd2+) as a membrane carrier in PVC matrix was successfully built for the determination of Cd2+ ions. Using Dimethyl phthalate (DMP) plasticizer, showed Nernstian liner response spanning range 1*10-1 to 1*10-7 M with slope (28) ±2 mV per decade charge and detection limit 1*10-9 M. The sensor has 10-second time. cadmium is highly precise its selectivity over other cations. Some alkali transition metal ions have coefficients 1 * 10-7 10-1. It worked well an indicator potentiometric measurement ion.