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Use of o phenylene dioxydiacetic acid impregnated in Amberlite XAD resin for separation and preconcentration of uranium VI and thorium IV     
Yazarlar
Serap Seyhan Bozkurt
Dokuz Eylül Üniversitesi, Türkiye
Melek Merdivan
Dokuz Eylül Üniversitesi, Türkiye
Prof. Dr. Nadir DEMİREL Prof. Dr. Nadir DEMİREL
Dicle Üniversitesi, Türkiye
Özet
The impregnation of o-phenylene dioxydiacetic acid (OPDA) into a polymeric matrix, Amberlite XAD-2000, is reported and was characterized by infrared spectroscopy. The amount of attached OPDA to the polymer resin was found to be 1.77 mmol g-1 resin. The resin was used for the sorption of U(VI) and Th(IV) from aqueous solution. This sorbent was capable of preconcentrating U(VI) and Th(IV) from weakly acidic or neutral solution. The retained metals were eluted sequentially using 0.25 mol L-1 HCl for U(VI) and 1 mol L-1 HCl for Th(IV) and determined spectrophotometrically using arsenazo-(III). The capacity of the resin for U(VI) and Th(IV) was found to be 0.121 and 0.113 mmol g-1, respectively. The impregnated resin exhibits a high chemical stability, reusability and fast equilibration. The method was used for the determination of U(VI) and Th(IV) in synthetic samples and rock samples. © 2007 Elsevier B.V. All rights reserved.
Anahtar Kelimeler
o-Phenylene dioxydiacetic acid | Sorption | Thorium(IV) | Uranium(VI) | XAD-2000
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Journal of Hazardous Material
Dergi ISSN 0304-3894
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2008
Cilt No 152
Sayı 1
Sayfalar 79 / 84
Doi Numarası 10.1016/j.jhazmat.2007.06.065