Enhanced luminescence of the europium/terbium/thenoyltrifluoroacetone/1,10-phenanthroline/surfactant system, and its analytical application

Abstract The enhanced luminescence of europium in a thenoyltrifluoroacetone/1,10-phenanthroline/Triton X-100 system in the presence of terbium is studied. The sensitivity is increased by two orders of magnitude, giving a detection limit of 1 × 10 −13 M. The optimized procedure is applied to the determination of europium in lanthanide oxide samples.