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Solid phase extractive preconcentration of uranium(VI) using quinoline-8-ol anchored chloromethylated polymeric resin beads

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dc.contributor.author Praveen, R S
dc.contributor.author Metilda, P
dc.contributor.author Sobhi Daniel
dc.contributor.author Prasada Rao, T
dc.date.accessioned 2015-09-14T16:13:07Z
dc.date.available 2015-09-14T16:13:07Z
dc.date.issued 2005
dc.identifier.citation Talanta 67(5):960-967; Oct 2005 en_US
dc.identifier.issn 0039-9140
dc.identifier.uri http://ir.niist.res.in:8080/jspui/handle/123456789/2044
dc.description.abstract A new chelating polymeric sorbent has been developed using Merrifield chloromethylated resin anchored with quinoline-8-ol (HQ). The modified polymeric resin was characterized by FT-IR spectroscopy and elemental analysis. The HQ anchored resin showed superior binding affinity for U(VI) over Th(IV) and La(III). The influence of various physicochemical parameters on the recovery of U(VI) were optimized by both static and dynamic methods. The phase exchange kinetic studies performed for U(VI) revealed that <5 min was sufficient for reaching equilibrium metal ion sorption. The maximum sorption capacity of HQ anchored resin for U(VI) was found to be 120.30 mg g(-1) of resin which is higher than other solid phase extraction sorbents reported so far excepting N,N-dibutyl,N'-benzoyl thiourea sorbed Amberlite XAD-16. The developed HQ anchored polymeric resin is highly selective as none of the extraneous species were found to have any deleterious effect. Solid phase extraction (SPE) studies performed using HQ anchored polymeric resin offered enrichment factor of 100 and the lowest concentration below which recoveries become non-quantitative is 5 mu g l(-1). The accuracy of the developed SPE method in conjunction with Arsenazo III procedure was tested by analyzing marine sediment (MESS-3) and soil (IAEA-Soil 7) reference materials. Furthermore, the above procedure has been successfully employed for the analysis of real soil and sediment samples. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.subject Quinoline-8-ol en_US
dc.subject Merrifield chloromethylated resin en_US
dc.subject Grafting en_US
dc.subject Preconcentrative separation en_US
dc.subject Uranium(VI) en_US
dc.subject Soils and sediments en_US
dc.title Solid phase extractive preconcentration of uranium(VI) using quinoline-8-ol anchored chloromethylated polymeric resin beads en_US
dc.type Article en_US


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