Chem. J. Chinese Universities ›› 1985, Vol. 6 ›› Issue (11): 967.

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The Determination of Individual Rare Earth in the Binary Mixture of Gd and Y by Rate Differential Kinetic Method

Chen Danhua, Cai Ruxiu, Lin Zhixin, Zeng Yun'e   

  1. Department of Chemistry, Wuhan University, Wuhan
  • Received:1984-07-16 Online:1985-11-24 Published:1985-11-24

Abstract: The kinetic behaviour in the substitution reaction of RE(TCA)2 (TCA=2-(2-arsenophenylazo) - 7 - (2,4,6-trichlorophenylazo) -1, 8-dihydroxynaphthalene-3,6-di-sulfonic acid) with CyDTAhas been studied, and some kinetic parameters of the reaction system and kinetic equation for determination have been measured and established. Gd and Yin the binary mixture have been determined by their rate difference in the ligand substitution reaction of RE(TCA)2 with CyDTAat pH3.01 Anumber of synthesized samples was analysed by logarithmic extrapolation method with good sensitivity and high precision, and it is simple and rapid.

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