Abstract:Radiochemical neutron activation analysis (RNAA) procedures for determination of Re at the ultratrace level based on use of liquid-liquid extraction (LLE) and extraction chromatography (EXC) have been developed. Two different LLE procedures were used depending on the way of sample decomposition using either 2-butanone or tetraphenylarsonium chloride in CHCl 3 . EXC employed new solid extractant materials prepared by incorporation of the liquid trioctyl-methylammonium chloride into an inert polyacrylonitrile ma… Show more
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