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Authors
Affiliations
1 Department of Chemistry, S.S.V. Post Graduate College, Hapur, IN
2 Department of Chemistry, B.S.A. College, Mathura (U.P.), IN
Source
Asian Journal of Research in Chemistry, Vol 3, No 1 (2010), Pagination: 214-219
Abstract
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 3.9×10-6-1.0×10-1 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.
