Synthesis, Characterization and Theoretical Study of Azoimine and Using for Analysis of Palladium (II) Ion by Turbidimetric Method in Environmental Samples

Abstract

Simple and rapid efficiency using the turbidity method acting for the pre-concentration and estimating of Pd (II) in environmental samples by using turbidity meter device detection. In the proposed approach, 2-(((2-(((E)-2-hydroxy-4-((E)-o-tolyldiazenyl)benzylidene)amino)benzyl)imino)methyl-5-(o-tolyldiazenyl) phenol] (A3) was synthesized and characterized by UV-visible, FT-IR, 1H-NMR and Mass spectra. Additionally, the structure of chemical compound (A3) was studied the Frontier Molecular Orbitals (FMOs) of (A3) were computed at the B3LYP/6-31G(d,p) level of theory, and the synthesized compound used as a complexing agent with as a surfactant (SDS). Parameters, which provided optimum reaction conditions, were studied such as the effect of order addition, the effect of reagent concentrations, the effect of surfactant concentration (SDS), the effect of pH solution, the effects of equilibrium measure temperature, and time. A linear calibration curve where the linearity range was found to lie between 0-60μg.L-1 with a correlation coefficient of 0.999, the limit of quantification (LOQ) 0.40μgL-1, and the detection limit (LOD) 0.12μg.L-1. Precision and accuracy of the method were found to be RSD 2.80% and the method was applied successfully to determine palladium ion concentration in various environmental samples, was found the recovery in the range 99.0-102.44%.