Preparation of trioctylamine-impregnated polystyrene–divinylbenzene porous resins for the collection of precious metals from water
作者： Tohru Saitoh , Fumio Nakane , Masataka Hiraide
DOI: 10.1016/J.REACTFUNCTPOLYM.2006.12.001
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摘要: Abstract A water-insoluble extracting solvent, trioctylamine (TOA), was solubilized in the aqueous micellar solution of a polyoxyethylene-type nonionic surfactant, polyethyleneglycol (10)-mono-4-nonylphenyl ether (PONPE-10). By mixing and polystyrene–divinylbenzene porous resin (Amberlite XAD-4), TOA successfully impregnated into resin. Gold(III), platinum(II), palladium(II) were well extracted from hydrochloric acid to TOA-impregnated resins. The extents extraction platinum(II) increased with increasing amount impregnated. filter disk also prepared by passing mixture PONPE-10 through an Empore involving polystyrene–divinylbenzene. useful for concentrating precious metals water prior their graphite furnace atomic absorption spectrometric analysis.
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