Potentiometric Studies on Some Zinc Selective Ionophores

Abstract

The membrane electrodes incorporating four ionophores can be used to determine Zn in the concentration range of 10(-5) to 10(-1)M. All these elecrodes exhibit near Nernstian slopes with detection limit of 10(-5)M. these electrodes possessed good selectivity over other divalent and trivalent metal ions. the proposed electrode worked over a wide range of pH and could also be used for determination of Zn by potentiometric titrations.