Abstract

AbstractA Nickel (II) ion- selective electrode was prepared; depend on the active material DB18C6 as a sensor, deposed in poly vinyl chloride PVC polymer, and using (DBPH) as a plastizier substance, in membrane.The behavior and characteristics properties of this electrode have been studied.The calibration linear range was (1x10-1-1x10-8) mol/ L nickel with a correlation coefficient of (0.9976) relative standard error of 1.221 % and a relative standard deviation of 1.899 %.The linearity slop is equal to 29 mV/decade with a detection limit of5 x 10-8 mol/ L.The selectivity coefficient Ki,j of the electrode was calculated, in the presence of some interferences cations . It was found that the electrode response in the pH range of (2-8), with response time of (10- 48) sec. for different concentrations at 25Co, the electrode lifetime was found to be 24 days , the effect of using different plasticizer substances was alsostudied.

869 Total full text downloads since the date of addition