Luminescent complexes of terbium ion for molecular recognition of ibuprofen |
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| Authors: | Natalia Selivanova Kristina Vasilieva Yury Galyametdinov |
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| Institution: | Kazan National Research Technological University, Department Physical and Colloid Chemistry, Kazan, Russia |
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| Abstract: | The complexation behavior and luminescent properties of terbium (Tb3+) complexes containing bi‐dental ligands were studied: nitrogen – 1,10‐phenanthroline, and oxygen – trifluoroacetylacetone as well as acetylacetone ligands with ibuprofen (Ibu; a non‐steroidal anti‐inflammatory drug). Aqueous and aqueous alcohol microheterogeneous solutions were used as media. The effects of solubilization by various micellar solutions, pH and ligand type on luminescent properties of Tb3+ complexes were investigated. Sensitized luminescence of mixed ligand complex Tb(1,10‐phenanthroline)‐Ibu and dynamic quenching effect in complex Tb(trifluoroacetylacetone)3‐Ibu allow Ibu determination with the limit of detection 5.3 × 10–8 mol/L and 1.26 × 10–6 mol/L, respectively. Copyright © 2013 John Wiley & Sons, Ltd. |
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| Keywords: | ibuprofen micelle quenching luminescence sensitized luminescence terbium |
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