Fluorescence resonance energy transfer between cerium ion(III) and levofloxacin in micellar solution and its analytical application to the determination of levofloxacin |
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Authors: | Lu Wang Zeshi Wang Yongli Wang |
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Institution: | College of Chemistry and Chemical Engineering, Inner Mongolia University of Science and Technology, Baotou, Inner Mongolia, China |
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Abstract: | Fluorescence resonance energy transfer between cerium ion(III) and levofloxacin is studied in a micellar solution of cetyltrimethyl ammonium bromide. A non-fluorescent 1:2 complex was formed between excited cerium ion(III) and ground state levofloxacin. The fluorescence of cerium ion(III) is quenched by levofloxacin with the quenching in accordance with the Stern–Volmer relation. The analytical relationship was established between the ratio of the fluorescence of levofloxacin present and absent cerium ion (III) and the concentration of levofloxacin, which helped to estimate the content of levofloxacin directly. |
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Keywords: | Cerium ion (III) fluorescence quenching fluorescence resonance energy transfer levofloxacin injection |
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