Supramolecular solvent microextraction of uranium at trace levels from water and soil samples

Authors : Mansoor KHAN, Erkan YILMAZ, Mustafa SOYLAK

Pages : 61-69

View : 10 | Download : 7

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A supramolecular solvent microextraction procedure was established for the separation/preconcentration of uraniuminsert ignore into journalissuearticles values(VI); insert ignore into journalissuearticles values(Uinsert ignore into journalissuearticles values(VI);); prior to its determination by UV-Vis spectrophotometry. 1-insert ignore into journalissuearticles values(2-Pyridylazo);-2-naphthol insert ignore into journalissuearticles values(PAN); was used to form a red chelate insert ignore into journalissuearticles values(U-PAN); with Uinsert ignore into journalissuearticles values(VI); at pH 10. U-PAN was extracted by undecanol in tetrahydrofuran. All the parameters that affect extraction efficiency like solution pH, amount of ligand, type and volume of supramolecular solvent, sample volume, and diverse ion effect were optimized. The preconcentration factor was 17. The detection limit was 0.31 $\mu $g L$^{-1}$. The method was validated using GBW07424 insert ignore into journalissuearticles values(GSS-10 certified reference material);. Microextraction was also applied to water and soil samples.
Keywords : Supramolecular solvent, microextraction, spectrophotometric determination, uranium, 1 2 pyridylazo, 2 naphthol