Summary
The separation of iron, copper, nickel, and zinc by thin-layer chromatography was studied. Eight bonded-phase silica substrates and twenty-nine solvent systems were investigated. Solutions of 1% diphenylcarbazide in ethanol and 1% K4Fe(CN)6 in water were used to detect the metal ions. The best separation was obtained with an immobilized trifluoroacetylacetone substrate and 10% trifluoroacetylacetone in acetone mobile phase.
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Den Bleyker, K.T., Sweet, T.R. Thin-layer chromatography of metal ions on bonded stationary phases. Chromatographia 13, 114–118 (1980). https://doi.org/10.1007/BF02263064
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DOI: https://doi.org/10.1007/BF02263064