Simultaneous determination of samarium, europium and terbium with quinaldic acid and phenanthroline by synchronous derivative fluorimetry.

作者: X Du

DOI: 10.1016/0039-9140(94)80108-8

关键词: TerbiumFluorescence spectroscopyAqueous solutionNuclear chemistryInorganic chemistrySamariumFluorescenceChemistryEuropiumFluorescence spectrometryPhenanthroline

摘要: Synchronous derivative fluorescence of samarium, europium and terbium complexes with quinaldic acid phenanthroline was examined in aqueous solution. The composition these determined. maximum emission wavelengths are 645 nm, 617 nm 545 for terbium, respectively. Under the optimal experimental conditions, intensity a linear function concentration range 10-250 ppm 0.5-50 0.5-300 terbium. Simultaneous determination successfully carried out samarium oxide middle rare earth mixture. precision method, expressed as relative standard deviation, is within 1.1-2.5%.

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