Citation: Zhi Kun SI, Gui Yun ZHU, Wei JIANG, Bin ZHANG, Ning SONG. STUDY OF THE FLUORESCENCE ENHANCEMENT IN THE SYSTEM OF EUROPIUM-OR SAMAR-IUM-TERBIUM-DIBENZOYLMETHANE-CETYLTRIMETHYLAMMONIUM BROMIDE-TRITON X-100 AND ITS APPLICATION[J]. Chinese Chemical Letters, ;1992, 3(2): 145-148. shu

STUDY OF THE FLUORESCENCE ENHANCEMENT IN THE SYSTEM OF EUROPIUM-OR SAMAR-IUM-TERBIUM-DIBENZOYLMETHANE-CETYLTRIMETHYLAMMONIUM BROMIDE-TRITON X-100 AND ITS APPLICATION

Department of Applied Chemistry, Shandong University, Jinan, 250100

Received Date: 26 September 1991

A fluorescence enhancement phenomenon on adding terbium to the Eu or Sm-DBM-CTMAB-Triton X-100 fluorescence system was observed. The fluorescence intensity of this system was 50 times greater than that of the system without terbium at pH 9.0. The fluorescence intensity is a linear function of the concentration of europium or samarium in the range of 1.0×10^-10-8.0×10^-6 mol/L and 1.0×10^-7-8.0×10^-6 mol/L, respectively. The deteetion limits for them were 1.0×10^-12 mol/L and 1.0×10^-9 mol/L, respectively. This system was used for the determination of europium or samarium in rare earth samples with satisfactory results.
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