NDLI: Flow injection on-line determination of uranium after preconcentration on XAD-4 resin impregnated with dibenzoylmethane

Content Provider	Springer Nature Link
Author	Shahida, Shabnam Ali, Akbar Khan, Muhammad Haleem Saeed, Muhammad Mufazzal
Copyright Year	2011
Abstract	A flow injection on-line determination of uranium(VI) after preconcentration in a minicolumn having amberlite XAD-4 resin impregnated with dibenzoylmethane (DBM) is described. Uranium(VI) is selectively adsorbed from aqueous solution of pH 5.5 in the minicolumn (5.5 cm long with 5.0 mm i.d.) at a flow rate of 13.6 mL min$^{−1}$. The uranium(VI) complex was desorbed from the resin by 0.1 mol dm$^{−3}$ HCl at a flow rate of 4.2 mL min$^{−1}$ and mixed with arsenazo-III solution (0.05% solution in 0.1 mol dm$^{−3}$ HCl, 4.2 mL min$^{−1}$), and taken to the flow through cell of spectrophotometer where its absorbance was measured at 651 nm. Various parameters affecting the complex formation and its elution were optimized. Peak height (absorbance) was used for data analyses. The preconcentration factors of 36 and 143, detection limits of 0.9 and 0.232 μg L$^{−1}$, sample throughputs of 40 and 10 were obtained for preconcentration time of 60 and 300 s, respectively. The tolerance limits of many interfering cations like Th(IV) and rare-earth elements were improved. The proposed method was applied on different water (spiked tap, well and sea water) and biological samples and good recovery was obtained. The method was also validated on mocked uranium ore sample and the results were in good agreement with the reported value.
Starting Page	929
Ending Page	938
Page Count	10
File Format	PDF
ISSN	02365731
Journal	Journal of Radioanalytical and Nuclear Chemistry
Volume Number	289
Issue Number	3
e-ISSN	15882780
Language	English
Publisher	Springer Netherlands
Publisher Date	2011-06-04
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dibenzoylmethane Flow injection Online preconcentration Impregnation Amberlite XAD-4 resin Uranium Nuclear Physics, Heavy Ions, Hadrons Diagnostic Radiology Nuclear Chemistry Inorganic Chemistry Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Pollution Health, Toxicology and Mutagenesis Radiology, Nuclear Medicine and Imaging Analytical Chemistry Public Health, Environmental and Occupational Health Nuclear Energy and Engineering

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