Abstract
The effect of the second ligand and surfactant micelles on the solid-phase time-resolved fluorescence of europium sensitized by doxycycline on Silasorb 600 is studied. A procedure of the sorption-luminescence determination of doxycycline using micelles of Triton X-100 nonionic surfactant is developed; the detection limit is 1.1 × 10−7. The analytical range for doxycycline is 3 × 10−7 to 3 × 10−5 M. The procedure is tested on a doxycycline pharmaceutical drug; RSD was no worse than 4%.
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Original Russian Text © I.I. Parashchenko, T.D. Smirnova, S.N. Shtykov, V.I. Kochubei, N.N. Zhukova, 2013, published in Zhurnal Analiticheskoi Khimii, 2013, Vol. 68, No. 2, pp. 125–129.
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Parashchenko, I.I., Smirnova, T.D., Shtykov, S.N. et al. Doxycycline-sensitized solid-phase fluorescence of europium on silica in the presence of surfactants. J Anal Chem 68, 112–116 (2013). https://doi.org/10.1134/S1061934813020123
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DOI: https://doi.org/10.1134/S1061934813020123