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2005 | 3 | 2 | 252-262

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Determination of gold, palladium and copper by flame atomic absorption spectrometry after preconcentration on silica gel modified with 3-(2-aminoethylamino)propyl group


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A preconcentration method of gold, palladium and copper based on the sorption of Au (III), Pd (II) and Cu (II) ions on a column packed with 3-(2-aminoethylamino)propyl bonded silica gel is described. The modified silica gel was synthesized and characterized by FT-IR and C, H, N elemental analysis. At column preconcentration, the effects of parameters such as pH, volume, flow rate, matrix constituents of solutions and type of eluent on preconcentration of gold, palladium and copper were studied. The recoveries of Au (III), Pd (II) and Cu (II) were 98.93±0.51, 98.81±0.36 and 99.21±0.42 % at 95 % confidence level, respectively. The detection limits (δ) of the elements were 0.032, 0.016 and 0.012 μg ml−1, respectively. The preconcentration method was applied for determination of gold and palladium in certified reference material SARM 7B and copper in river and synthetic seawater by FAAS. Gold, palladium and copper were determined with relative error lower than 10 %.










Physical description


1 - 6 - 2005
1 - 6 - 2005


  • Department of Chemistry of Faculty of Science and Art, Sakarya University, 54100, Sakarya, Turkey
  • Department of Chemistry of Faculty of Science and Art, Sakarya University, 54100, Sakarya, Turkey
  • Department of Chemistry of Faculty of Science and Art, Sakarya University, 54100, Sakarya, Turkey


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