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Novel extractant impregnated resin for preconcentration and determination of uranium from environmental samples

Tetgure, Sandesh R. and Choudhary , Bharat C. and Garole, Dipak J. and Borse, Amulrao U. and Sawant, Arun D. and Prasad, Surendra (2017) Novel extractant impregnated resin for preconcentration and determination of uranium from environmental samples. Microchemical Journal, 130 . pp. 442-451. ISSN 0026-265X

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    Abstract

    A novel method based on impregnation of Amberlite XAD-4 with extractant isonitroso-4-methyl-2-pentanone (IMP) has been developed for U6 + extraction and determination in various samples. The prepared extractant im- pregnated resin (EIR) sorbent was characterized by the field emission scanning electron microscope. The sorbent was packed in a glass column and investigated for various parameters such as pH, eluent, sample and eluent flow rates to optimize sorption desorption conditions for U6+. U6+ is quantitatively determined at pH 4 with flow rate 2 mL/min which showed recovery of 98.9%. The sorption behaviour of U6 + by EIR was also studied using different equilibrium isotherms and kinetic models and the experimental data confirmed that it follows Freundlich iso- therm and Weber-Morris pore diffusion kinetic model. The investigation of foreign ions influence on U6+ sorp- tion showed least interference and thus, facilitated its extraction and determination in Uranmicrolite (leachate) ore tailing, synthetic mixtures and spiked water samples. The detection limit was 0.41 μg/L while the limit of quantification as 1.35 μg/L made the method quite accurate.

    Item Type: Journal Article
    Uncontrolled Keywords: Uranium determination, Isonitroso-4-methyl-2-pentanone, Amberlite XAD-4, Solid phase extraction, Uranium recovery
    Subjects: Q Science > QD Chemistry
    Divisions: Faculty of Science, Technology and Environment (FSTE) > School of Biological and Chemical Sciences
    Depositing User: Repo Editor
    Date Deposited: 26 Apr 2017 14:59
    Last Modified: 26 Apr 2017 14:59
    URI: http://repository.usp.ac.fj/id/eprint/9789
    UNSPECIFIED

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