Statistical evaluation of spectrophotometric determination of nickel(II) using Micelle-mediated extraction.

Abstract

Abstract An organic reagent namely 2-(2-bromophenyl)imino)methyl)-4- (5,6-dimethylpyridin-2-yl)diazenyl)phenol was synthesized and used for the determination of nickel after preconcentration using Micelle-mediated extraction.In this precocentration method the ligand (2-(2-bromophenyl)imino)methyl)-4- (5,6-dimethylpyridin-2-yl)diazenyl)phenol was used as a chelating agent for the extraction of Ni(II), using the nonionic surfactant Triton X-114 medium. Uv-Vis spectrophotometry was applied for the quantitation of the analyte at λmax(650)nm. All factors affecting the extraction and determination of Ni(II) ion using micelle mediation extraction(e.g. pH, surfactant and reagent concentrations, incubation time and temperature) were executed by using a classical optimization, the calibration plot was subjected to the statistical evalution by using the analysis of variance (ANOVA), The method was applied to the determination of Ni (II) in invironmental samples.