Extraction chromatography of palladium and platinum complexes with nitroso-R-salt.
The retention of palladium and platinum complexes with nitroso-R-salt on silica gel treated with Aliquat 336 has been investigated. The complexation of platinum with nitroso-R-salt (NRS) requires heating of H(2)PtCl(6) with an excess of NRS at 100 degrees . The affinity of the complexes for an Aliquat 336 stationary phase increases in the following order: PdCl(4)(2-) ~ Pt-NRS < PtCl(6)(2-) Pd-NRS. The complexes of palladium and platinum can be separated by column chromatography on silica treated with Aliquat 336 and eluted with 0.25M perchloric acid (Pt) and 1M perchloric acid (Pd).
Flieger
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Department of Inorganic and Analytical Chemistry, Medical School, 20-081 Lublin, Poland.
Przeszlakowski
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