Abstract
A fluorescence enhancement phenomenon in the europium (Eu)–Ofloxacin (OF)–Sodium Dodecyl Benzene Sulfonate (SDBS) fluorescence system was observed when Gd3+ was added. The fluorescence intensity of the systems was measured (λ ex/λ em = 280/612 nm) at pH 7.8. Under optimum conditions, a linear relationship between the enhanced fluorescence intensity and the Eu3+ concentration in the range of 5.0 × 10−10 ∼ 2.0 × 10−7 mol·L−1 was observed. The detection limit of Eu3+ was 1.46 × 10−10 mol·L−1 (S/N = 3). This method was used for the determination of trace amounts of europium in synthetic rare earth samples with satisfactory results. In addition, the interaction mechanism is also studied.
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Wang, F., Huang, W., Hou, Y. et al. The Co-luminescence Effect of Eu–Gd–Ofloxacin–SDBS System and its Analytical Application. J Fluoresc 17, 105–111 (2007). https://doi.org/10.1007/s10895-006-0136-2
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DOI: https://doi.org/10.1007/s10895-006-0136-2