A 20 g of apple and tomato (fruit) and Alllium cepal grilled and tiny small particle) organic content of their samples were oxidized in the presence of 1% (w/w) of H2O2 and addition of concentrated HNO3. Then they was heated in silica crucible for 3 h on a hot plate and the charred material was transferred to furnace for overnight heating at 650 C. The residue was cooled, treated with 10.0 mL concentrated nitric acid and 3 mL 30% (w/w) H2O2 again kept in furnace for 2 h. The final residue was treated with 3 mL concentrated hydrochloric acid and 2–4 mL 70% (w/w) perchloric acid and evaporated to fumes. The solid residue was dissolved in water, filtered and by keeping the pH at 7.0 by addition of KOH and HCl. For the preconcentration procedure, pH of the 250 mL of water samples was adjusted to 6 and the sample passed through the column at flow rate of 3 mL min1. The metals retained on modified solid phase were eluted with 2 mL of 2 mol L1 of HNO3 in methanol.The preconcentration procedure given above was applied to these solutions.