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The kinetic behaviour in the substitution reaction of RE(TCA)2 [TCA=2-(2-arsenophenylazo)-7-(2,4,6,-trichlorophenylazo)-1,8-dihy-droxy-naphthalene-3,6-disulfonic acid] with CyDTA has been studied and some kinetic parameters of the reaction system and kinetic equation for determination have been measured and established.Gd and Y in the binary mixture have been determined by using their rate difference in the ligand substitution reaction of RE(TCA).,with CyDTA at pH 3.0.A number of synthesized samples are analysed by logarithmic extrapolation method with good sensitivity and high precision,and it is simple and rapid.
The kinetic behavior in the substitution reaction of RE (TCA) 2 [TCA = 2- (2-arsenophenylazo) -7- (2,4,6 -trichlorophenylazo) -1,8-dihy-droxy-naphthalene-3,6 -disulfonic acid] with CyDTA has been studied and some kinetic parameters of the reaction system and kinetic equation for determination have been measured and established. Gd and Y in the binary mixture have been determined by using their rate difference in the ligand substitution reaction of RE (TCA)., With CyDTA at pH 3.0. A number of synthesized samples are analyded by logarithmic extrapolation method with good sensitivity and high precision, and it is simple and rapid.