三氯偶氮胂速差动力学分析法测定Gd、Y二元混合物中的单一稀土

高等学校化学学报 ›› 1985, Vol. 6 ›› Issue (11): 967.

三氯偶氮胂速差动力学分析法测定Gd、Y二元混合物中的单一稀土

陈丹华, 蔡汝秀, 林智信, 曾云鹗

武汉大学化学系

收稿日期:1984-07-16 出版日期:1985-11-24 发布日期:1985-11-24
基金资助:
中国科学院科学基金

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

Department of Chemistry, Wuhan University, Wuhan

Received:1984-07-16 Online:1985-11-24 Published:1985-11-24

摘要/Abstract

摘要： 本文研究了稀土的三氯偶氮胂络合物与CyDTA取代反应的动力学行为,测定了反应体系的部分动力学参数,建立了动力学测定方程,利用pH3.0时,Gd、Y的三氯偶氮胂络合物与CyDTA取代反应的速率差别,采用对数外推法测定了Gd、Y二元稀土混合物中的各组份,该方法灵敏度高、准确、简便、快速。

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.

TrendMD:

陈丹华, 蔡汝秀, 林智信, 曾云鹗. 三氯偶氮胂速差动力学分析法测定Gd、Y二元混合物中的单一稀土. 高等学校化学学报, 1985, 6(11): 967.

Chen Danhua, Cai Ruxiu, Lin Zhixin, Zeng Yun'e . The Determination of Individual Rare Earth in the Binary Mixture of Gd and Y by Rate Differential Kinetic Method. Chem. J. Chinese Universities, 1985, 6(11): 967.