Spectrofluorimetric Determination of Trace Amounts of Europium(III) Ion with Lutetium(III)-Sparfloxacin-Sodium Dodecyl Sulfate Luminescence Enhancement System | Zendy

Lei Wang | Zendy

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Spectrofluorimetric Determination of Trace Amounts of Europium(III) Ion with Lutetium(III)-Sparfloxacin-Sodium Dodecyl Sulfate Luminescence Enhancement System

Author(s) -

Lei Wang

Publication year - 2004

Publication title -

analytical sciences

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.392

H-Index - 73

eISSN - 1348-2246

pISSN - 0910-6340

DOI - 10.2116/analsci.20.1237

Subject(s) - europium , chemistry , lutetium , sodium dodecyl sulfate , luminescence , detection limit , sulfate , sparfloxacin , inorganic chemistry , fluorescence , sodium , fluorescence spectrometry , nuclear chemistry , trace amounts , analytical chemistry (journal) , ion , chromatography , organic chemistry , yttrium , alternative medicine , pathology , oxide , ofloxacin , physics , biochemistry , optoelectronics , antibiotics , quantum mechanics , ciprofloxacin , medicine

A new luminescence-enhancement system based on complex formation between europium and sparfloxacin in the presence of lutetium in a sodium dodecyl sulfate solution has been discovered. By adding a suitable amount of Lu3+ to the Eu-sparfloxacin-sodium dodecyl sulfate system, the luminescence can be enhanced by approximately 5-fold compared with that of the system without Lu3+. Under the optimum conditions, the luminescence intensity of the system is a linear function of the concentration of europium in the range of 1.0 x 10(-10) - 5.0 x 10(-7) mol L(-1). The detection limit of europium is 2.0 x 10(-13) mol L(-1) (S/N = 3). The system was used for the determination of trace amounts of europium in rare earth samples with satisfactory results.

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