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• W2018867504 endingPage "376" @default.
• W2018867504 startingPage "365" @default.
• W2018867504 abstract "A solid phase extraction method for simultaneous preconcentration and separation of trace amounts of copper, cobalt and silver in different samples, using a column packed with modified Amberlyst®15 resin is developed. Amberlyst®15 resin was modified with 5-(4-dimethylaminobenzylidene)rhodanine and then the modified resin was used as a support material for the solid phase extraction and preconcentration of Cu(II), Co(II) and Ag(I) ions from aqueous solution in the pH range 3.5–4.5. The adsorbed metal ions on the column were quantitatively eluted with a 7% thiourea solution prepared in 2 mol L−1 HNO3, which were detected by flame atomic absorption spectrometry. The effects of analytical parameters including pH of the solution, eluent type, flow rate of samples, eluent and matrix ions were investigated for optimization of the presented procedure. The detection limits were 2.1, 0.9 and 0.9 ng mL−1 for Cu(II), Co(II) and Ag(I) ions, respectively based on the three times the standard deviations of the blanks. The preconcentration factor was 112.5. The calibration graphs were obtained in the ranges of 0.05 to 10.0, 0.03 to 13.0 and 0.04 to 9.0 µg mL−1 for Cu(II), Co(II) and Ag(I) ions concentrations, respectively. Relative standard deviations (n = 7) for Cu(II), Co(II) and Ag(I) ions were found ±2.5 %, ±0.84% and ±3.8% respectively. The method was applied to the determination of mentioned ions in well water, waste water and lettuce sample." @default.
• W2018867504 created "2016-06-24" @default.
• W2018867504 creator A5021239787 @default.
• W2018867504 creator A5057834478 @default.
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• W2018867504 date "2013-04-01" @default.
• W2018867504 modified "2023-09-26" @default.
• W2018867504 title "Simultaneous separation and preconcentration of trace amounts of copper (II), cobalt (II) and silver (I) by modified Amberlyst®15 resin" @default.
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• W2018867504 doi "https://doi.org/10.1080/03067319.2012.663753" @default.
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