1Department of Chemistry, S.S.V. Post Graduate College, Hapur, India
2Department of Chemistry, B.S.A. College, Mathura (U.P.) India
*Corresponding Author E-mail: susheelsindhu@yahoo.co.in
Online published on 13 March, 2013.
A PVC membrane based nickel(II) selective electrode was constructed using 11,14-diaza-4,7-dioxo-2(3), 8(9)-dibenzoyl-cyclotetradeca-10,14(1)-diene (DADOCTD) as a neutral carrier. The sensor exhibits a Nernstian response for Ni(II) ions over a wide concentration range of 3.9 x 10−6 -1.0 x 10−1 with a slope of 29.0 mV/decade. It has a relatively fast response time and can be used for 120 days without any considerable divergence in potentials. The proposed sensor revealed relatively good selectively and high sensitivity for Ni(II) over a bi-, tri-and tetravalent metal ions and could be used in a pH range of 3–8. It was successfully also used as an indicator electrode in potentiometer titration and in analysis of concentration of nickel in real samples.
