Extraction chromatography of palladium and platinum complexes with nitroso-R-salt.
1985
Abstract 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°. The affinity of the complexes for an Aliquat 336 stationary phase increases in the following order: PdCl 4 2− ~ Pt-NRS 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 0.25 M perchloric acid (Pt) and 1 M perchloric acid (Pd).
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