Summary
The chromatographic behaviour of nine noble metals on paper strips impregnated with mixtures of HCl and HNO3 and developed with solutions of secondary and tertiary amine salts or quatermary alkylammonium salts in organic diluents was investigated. It was found that very sharp separation of the pair Pt−Pd is obtainable at development of chromatograms with 0.1 Aliquat 336 in xylene or with 0.1 mol dm−3 TOA in kerosene at high concentrations of the acids in the stationary phase. The increase of concentration of HNO3 in acids mixture decreases the RF or RM values for the platinum metals more distinctly than increase of concentration of HCl.
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Przeszlakowski, S., Flieger, A. Paper chromatography of noble metals in mixed chloride-nitrate media with use of solutions of liquid anion exchangers as mobile phases. Chromatographia 11, 647–652 (1978). https://doi.org/10.1007/BF02268999
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DOI: https://doi.org/10.1007/BF02268999