Determination of Au(III) and Pd(II) ions by flame atomic absorption spectrometry in some environmental samples after solid phase extraction |
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| Authors: | Hamide Elvan Bayrak Mehmet Tufekci Hacer Bayrak Celal Duran Mustafa Soylak |
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| Institution: | 1. Trabzon Branch of the Council of Forensic Medicine, Department of Chemistry, Trabzon, Turkey;2. Faculty of Sciences, Department of Chemistry, Karadeniz Technical University, Trabzon, Turkey;3. Macka Vocational School, Department of Chemistry and Chemical Process Technologies, Karadeniz Technical University, Macka/Trabzon, Turkey;4. Faculty of Sciences, Department of Chemistry, Erciyes University, Kayseri, Turkey |
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| Abstract: | A simple and sensitive solid phase extraction method was developed for simultaneous separation and preconcentration of gold and palladium ions with N-(4-methylphenyl)-2-{(4-phenyl-5-pyridine-4-yl-4H-1,2,4-triazol-3-yl)thio]acetyl}hydrazine carbo thioamide complex on Amberlite XAD-1180 resin before their determination by flame atomic absorption spectrometry. Some analytical parameters such as HNO3 concentration of the sample solution, amount of complexing agent, sample volume, eluent type and volume, effects of foreign ions and adsorption capacity of the resin were investigated for quantitative recovery of gold and palladium ions. The effects of some anions and cations were also examined. Under optimum conditions, the detection limits for gold and palladium ions were found to be 0.29 and 0.19 μg L?1, respectively. The preconcentration factor for gold and palladium was 250. After being validated by standard addition and analysis of standard reference material, the procedure was successfully applied to the analysis of sea and stream water, anodic slime, gold ore, soil and electronic waste. |
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| Keywords: | Preconcentration solid phase extraction gold palladium flame atomic absorption spectrometry |
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