DOI: 10.36347/sajp

Pages: 438-443

A Schiff base N, N’-benzene-1, 2-diylbis [1-(pyridin-2-yl) ethanimine] was synthesized and used as ionophore for selective determination zinc ion in various samples. The proposed sensor show good selectivity for zinc (Zn2+) ions over all alkali, alkaline earth, transition and rare earth metal cations. The electrode works satisfactorily in a wide concentration range (1.4 x 1 0-7 M to 1.0 x 1 0-1 M). It has a response time of about 8s and can be used for at least 2 months without any considerable divergence in potentials. The proposed membrane sensor revealed good selectivities for Zn2+ ion in a pH range 1.0-7.0.