Determination of Europium by DPN-Triton X-100 Fluorescence System

Abstract

Abstract: Anew fluorescence system of Eu-DPN-NH₃-Triton X-100 is investigated in this paper. The optimum conditions to form the system are as follows: concentration of DPN is equal to 5. 0×10^-6 mol/L, Triton X-1000. 01% and pH = 9. 0. The fluorescence intensity is a linear function of the concentration of europium at the range of 1. 0× 10^-8-8.0× 10^-7 mol/L. The method can be used for spectrofluorimetric determination of Eu³⁺ in a aqueous solution and the detection limit is 6. 0× 10^-11 mol/L (9. 1× 10^-3 ng/mL). Several samples were analyzed with satisfactory results.

Key words: Europium, Diphacinone, Fluorescence analysis

TrendMD:

Si Zhikun, Zhu Guiyun, Zhu Wenjing. Determination of Europium by DPN-Triton X-100 Fluorescence System[J]. Chem. J. Chinese Universities, 1990, 11(10): 1138.

References

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