Study on Extraction of Rhenium with Isoamylol and Its Application in Geological Samples

Extraction process of rhenium(Ⅶ) from the media of nitric,sulfuric and hydrochloric acids using isoamylol was studied.Effect of types and concentrations of acids,and volume of extraction reagent on extraction yield of rhenium was discussed.The extraction mechanism of rhenium(Ⅶ) was proved to be an anion exchange reaction by UV-Vis spectra.A method for the determination of trace rhenium in geological samples,such as pyrite,chalcopyrite,magnetite and rock,using isotope dilution-inductive coupled plasma mass spectrometry was developed.This method was verified by analyzing the international reference material(CCRMP,WPR-1) and the analysis results were in good agreement with the value reported by Meisel and Moser.RSD(n=5) for Re content in chalcopyrite sample was 1.03%.