Selective solid phase extraction and preconcentration of Cu(II) and Zn(II) by using modified Cilicagel adsorbent by 4,2 Pyridilazo resorsinol(PAR)

In this project by the use of cilicagel as Sorbent for preconcentration of traces of Cu and Zn considered by Solid Phase Extraction prior to determination by flame Atomic Absorption Spectroscopy (FAAS). In this method 4,2 Pyridilazo resorsinol (PAR) as a complexing agent For copper and zinc ion after adsorbed in cilicagel and after that eluted by 5 ml of nitric Acid (3M). Some effective Parameter Such as pH, amount of adsorbent have been Optimized. Linear Dynamic Range for Cu and Zn were obtained 20-180, 10-160 μg lRespectively. The proposed Method Were used For Determination of analysts in Real Samples Which gave Satisfactory Results.