Ionic liquids for simultaneous preconcentration of some lanthanoids using dispersive liquid-liquid microextraction technique in uranium dioxide powder.
Ionic liquids in a dispersive liquid-liquid microextraction technique were used for determination of lanthanoids such as samarium, europium, gadolinium, and dysprosium in uranium dioxide powder. In this process, an appropriate mixture of extraction solvent and disperser is rapidly injected into an aqueous sample containing samarium, europium, gadolinium, and dysprosium ions complexes with 1-hydroxy-2, 5-pyrrolidinedione, and consequently a cloudy solution is formed. It consists of fine droplets of extraction solventwhich are dispersed entirely into the aqueous phase. After centrifugation of this solution, the whole enriched phase was determined by inductively coupled plasma optical emission spectrometry. In the present work, the preconcentration factor, limit of detection, and relative standard deviation were investigated for samarium, europium, gadolinium, and dysprosium in uranium dioxide powder.
Department of Analytical Chemistry, Faculty of Chemistry, Group of Science, University of Tehran, P.O. Box 14155-64555, Tehran, Iran.
Mohammad H
MH
Mallah
Farzaneh
F
Shemirani
Mohammad G
MG
Maragheh
D005591:Chemical Fractionation / Q000379:methods*; D004785:Environmental Pollutants / Q000737:chemistry*; D052578:Ionic Liquids / Q000737:chemistry*; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D017974:Uranium Compounds / Q000737:chemistry*
D004785:Environmental Pollutants; D052578:Ionic Liquids; D028581:Lanthanoid Series Elements; D017974:Uranium Compounds; C012597:uranium dioxide