高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (6): 591.

• 研究论文 • 上一篇    下一篇

稀土-锌-茜素氨羧络合剂异核络合物极谱吸附波研究

李南强, 吴大南   

  1. 北京大学化学系
  • 收稿日期:1987-09-23 出版日期:1989-06-24 发布日期:1989-06-24
  • 通讯作者: 李南强
  • 基金资助:

    国家自然科学基金

Studies on the Polarographic Adsorptive Wave of Isonuclear Complex of Rare Earth-Zinc- Alizarin Complexon

Li Nanqiang, Wu Danan   

  1. Department of Chemistry, Peking University, Beijing
  • Received:1987-09-23 Online:1989-06-24 Published:1989-06-24

PDF (PC)

被引次数

12

摘要： 本文报道了稀土-锌-茜素氨羧络合剂异核络合物的极谱吸附波的形成条件,络合物组成的测定及电极过程机理的研究。

关键词: 稀土异核络合物, 极谱吸附波, 单扫极谱

Abstract: In the 0.2mol/Lacetate buffer solution, at pH 4.8, a sensitive adsorptive wave of RE( Ⅲ)-Zn( Ⅱ )-ALCisonuclear complex was obtained by means of single-sweep polarograph with the exception of scandium. The limit of detection is 2.0×10-8 mol/Lfor light rare earth ions. The composition of the isonuclear complex was determined as RE( Ⅲ ):Zn( Ⅱ ):ALC = 1: 1 :2 by using the polarographic continuous variation method and the analysis of the isonuclear complex precipitate. The electrode processes of the adsorptive wave may be represented as follows:(这里有图片1989067-591-1.gif)where L' is the anthrahydroquinone anion of ALC.

Key words: Isonuclear complex of rare earth ion, Polarographic adsorptive wave, Single-sweep polarograph

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