Fluorescence in the system Eu(III) - oxytetracycline - co-ligand - sodium dodecylbenzene sulphonate micelles and its analytical application

Sergei N. Shtykov; Tatyana D. Smirnova; Natalja V. Kalashnikova; Yurii G. Bylinkin; Dmitry A. Zhemerichkin

doi:10.1117/12.696852

8 August 2006 Fluorescence in the system Eu(III) - oxytetracycline - co-ligand -sodium dodecylbenzene sulphonate micelles and its analytical application

Sergei N. Shtykov, Tatyana D. Smirnova, Natalja V. Kalashnikova, Yurii G. Bylinkin, Dmitry A. Zhemerichkin

Author Affiliations +

Proceedings Volume 6165, Saratov Fall Meeting 2005: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VI; 61650Q (2006) https://doi.org/10.1117/12.696852
Event: Saratov Fall Meeting 2005, 2005, Saratov, Russian Federation

Abstract

Fluorescence enhancement of the Eu³⁺ - oxytetracycline (OTC) chelate by addition of phenanthroline (Phen) and trioctyiphosphine oxide (TOPO) as well as micelles of anionic, catiomic and nonionic surfactants has been studied. As was found, in the presence of Phen as co-ligand and micelles of dodecylbenzene sulfonate as anionic surfactant the analytical signal increased by a factor of 8.5 and reached maximum value at pH 8.0 ± 0.5. The dynamic concentration range of OTC determination was found to be 8.0 x 10^-8 - 4.0 × 10^-5 M (R² = 0.991) and the detection limit 5.3 × 10^-8 M (3 σ criterion). The procedure based on europium-sensitized fluorescence has been developed for the determination of OTC in chicken meat with the recovery of 98.0-103.3%.

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Sergei N. Shtykov, Tatyana D. Smirnova, Natalja V. Kalashnikova, Yurii G. Bylinkin, and Dmitry A. Zhemerichkin "Fluorescence in the system Eu(III) - oxytetracycline - co-ligand -sodium dodecylbenzene sulphonate micelles and its analytical application", Proc. SPIE 6165, Saratov Fall Meeting 2005: Laser Physics and Photonics, Spectroscopy and Molecular Modeling VI, 61650Q (8 August 2006); https://doi.org/10.1117/12.696852

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