Spectrophotometric Determination of Nickel(II) with Some Schiff Base Ligands

Abstract

Sensitive and convenient methods for the spectrophotometric determination of nickel(II) with N, N′-bis(salicylaldehyde)ethylenediamine, N, N′-bis(salicylaldehyde)O-phenylenediamine and N, N′-bis(2-hydroxy-1-naphthaldehyde)O- phenylenediamine have been developed. The optimum concentration range evaluated by Ringbom′s method and the effect of diverse ions on the determination were also investigated. Themolar absorptivity and the Sandell sensitivity of the complexes were obtained. The present methods have been applied for the analysis of standard samples of nickel(II) in tap water and in industrial wastewater.