ChemNet
 
Previous article Next article Contents  

A. R. Bikmullina, A. A. Tereshchenkova, M. A. Statkus, T. I. Tikhomirova

Sorption of europium(III) complex with acetylacetone on hexadecyl silica-gel and hyper cross-linked polystyrene

Abstract

The sorption of europium(III) complex with acetylacetone was studied on hexadecyl silica-gel (SiO2–C16) and hyper cross-linked polystyrene. Maximum extraction was observed at pH 5–7 on SiO2–C16 and at pH 4–7 on cross-linked polystyrene. The partition coefficient is 7∙103 cm3/g and 102 cm3/g on cross-linked polystyrene and on silica-gel respectively. Extraction of europium (III) complex is quantitative on micro column (l = 10 mm length, 3 mm i.d.) packed with cross-linked polystyrene in dynamic conditions (sample volumes 10–50 ml). The desorption of europium by solutions of nitric acid with different concentrations was studied. 5 ml 1 mol/L nitric acid was ufficient for quantitative desorption. The calibration graph spectrophotometric determination of analyte in the eluate was plotted. The linearity range is 5–25 μg of europium in 10 ml sample.
Moscow University Chemistry Bulletin.
2013, Vol. 54, No. 4, P. 210
   

Copyright (C) Chemistry Dept., Moscow State University, 2002
   Overview
   Editorial board
   Tables of Contents
   Subscription

The site is supported by Russian Foundation for Basic Research
  The using of published on this page materials is not allowed without special permission
Copyright (C) Chemisty Department of Moscow State University
Web-Editor: B.I.Pokrovskii
Web-design: Copyright (C) MIG and VVM
webmaster@www.chem.msu.su