Spectrophotometric determination of uranium using chromotrope 2R complexes

  • Nusrat Jalbani
  • Mustafa Soylak


A simple, fast and reliable spectrophotometric method for the determination and microextraction of trace amounts of uranium using chromotrope 2R as a chelating agent and 1-butyl-3-methylimidazolium hexafluorophosphate ionic liquid (IL) was used as an extractant solvent. Influence variables such as pH, volume of ligand and IL were inspected by full factorial design. In the view of Pareto chart a contour plot was studied to examine the significant variables and their interactions. The detection limit and the preconcentration factor were found to be 0.87 and 50 μg L−1, respectively. The developed method was successfully applied to ore samples.


Uranium Chromotrope 2R Ionic liquid based micro-extraction Multivariate determination UV–Vis spectrophotometry 



Nusrat Jalbani is thankful to the Scientific and Technological Research Council of Turkey (TUBITAK) under “2216 Research Fellowship Programme for Foreign Citizens” for financial support.


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Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2014

Authors and Affiliations

  1. 1.Department of Chemistry, Fen FacultyErciyes UniversityKayseriTurkey
  2. 2.PCSIR LaboratoriesKarachiPakistan

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