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Preparation and characterization of chelating resins loaded with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol for preconcentration of rare earth elements

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Abstract

 Chelating resins prepared by sorption of 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol (5-BrPADAP) on macroporous resins (Amberlite XAD-4 and XAD-7) were characterized. The adsorption properties (amount of chelating agent adsorbed per gram of resin, sorption kinetics, retention capacity, etc.) and the thermodynamic quantities of each adsorption process were determined. The retention of some rare earth elements (e.g. Er, Yb and Lu) on these chelating resins was studied in order to preconcentrate them for their determination by X-Ray fluorescence spectrometry.

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Authors and Affiliations

  1. Department of Analytical Chemistry “Dr. Carlos B. Marone”, Faculty of Chemistry, Biochemistry and Pharmacy, National University of San Luis, San Luis, Argentine, , , , , , XX

    Adriana N. Masi & R. A. Olsina

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  1. Adriana N. Masi
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  2. R. A. Olsina
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Received: 7 September 1995/Revised: 2 January 1996/Accepted: 10 January 1996

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Masi, A., Olsina, R. Preparation and characterization of chelating resins loaded with 2-(5-bromo-2-pyridylazo)-5-(diethylamino)phenol for preconcentration of rare earth elements. Fresenius J Anal Chem 357, 65–68 (1997). https://doi.org/10.1007/s002160050112

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  • DOI: https://doi.org/10.1007/s002160050112

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