Synthesis of 2-[(3-Chloro-4,6-disulfanamide phenyl ) azo] -4,5 – diphenyl imidazole (Cdsai)as a new analytical reagent for the determination of Cu(II) .

Abstract

Abstract A new spectrophotometric method is described for the determination of Cu(II) in analytical sample . The proposed method based on the formation violet complex with 2-[(3-Chloro-4,6-disulfanamide phenyl ) azo] -4,5-diphenyl imidazole (Cdsai) as a new chromogenic reagent in nutral media that has a maximum absorption at λmax 588 nm . Linearity was observed from 0.25-6.00 µg.ml-1 with detection limit and 0.15µg.ml-1 . The effect of chemical, physical and analytical parameter is evaluated.