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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Soylak, Mustafa Yilmaz, Erkan Khan, Mansoor |
| Copyright Year | 2016 |
| Abstract | This paper describes a new and green approach for the preconcentration and separation of U(VI) by switchable solvent based liquid phase microextraction (SPS-LPME) and its UV-vis spectrophotometric determination. 1-(2-pyridylazo)-2-naphthol (PAN) as complexing agent was used. Conversion features of triethylamine (TEA) and protonated triethylamine bicarbonate (P-TEA-BC) as a green and cheap switchable solvent pair were used in the presented work. Protonated triethylamine bicarbonate (P-TEA-BC) as the polar form of the switchable polarity solvent (SPS) was successfully synthesized from triethylamine (TEA) via a proton transfer reaction and used for microextraction of the hydrophobic U(VI)–PAN complex at pH 9.0. The relative standard deviation was 2.5% for five repeated determinations of model solutions containing 6 μg L−1 of U(VI). The limit of detection (LOD), the limit of quantification (LOQ) and enhancement factor were 0.3 μg L−1, 1.0 μg L−1 and 40, respectively. The accuracy of the method was evaluated by analyzing certified reference materials and addition-recovery tests. The method was successfully applied to the determination of uranium in water, sediment, soil and rock samples. |
| Starting Page | 979 |
| Ending Page | 986 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 17599660 |
| Volume Number | 8 |
| Issue Number | 5 |
| Journal | Analytical Methods |
| DOI | 10.1039/c5ay02631h |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Super Proton Synchrotron Sediment Hydrophobe Coefficient of variation Bicarbonate Uranium Triethylamine Proton PH Protonation Rock music Naphthol Spectrophotometry Solvent |
| Content Type | Text |
| Resource Type | Article |
| Subject | Analytical Chemistry Engineering Chemical Engineering |
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