Simultaneous Determination of Europium and Terbium by Derivative Fluorometry with Pyrazine-2,3-Dicarboxylic acid System

Abstract

Abstract: The paper studies the stoichiometry and the fluorescence emitting mechanism of Eu³⁺,Tb³⁺complexes with pyrazine-2,3-dicarboxylic acid. The optimum conditions of simultaneous determination for Eu³⁺, Tb³⁺by derivative fluorometry are established. The interference of other ions is investigated. The detection limits of Eu³⁺, Tb³⁺are 4.0ng/mLand 2.0ng/mL, respectively. This method for analyzing the amount of Eu³⁺, Tb³⁺in rare earth samples has been proved to be satisfactory.

Key words: Derivative fluorometry, Pyrazine-2,3-dicarboxylic acid, Europium, Terbium

TrendMD:

LIU Shu-Ping, HUANG Han-Guo. Simultaneous Determination of Europium and Terbium by Derivative Fluorometry with Pyrazine-2,3-Dicarboxylic acid System[J]. Chem. J. Chinese Universities, 1995, 16(4): 523.

References

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