高等学校化学学报

高等学校化学学报 ›› 1986, Vol. 7 ›› Issue (3): 225.

• 研究论文 • 上一篇    下一篇

氨基C酸偶氮氯膦与稀土元素β型显色反应的研究

过乃蓉1, 罗庆尧2, 曾云鹗2   

  1. 1. 武汉市环境保护科学研究所;
    2. 武汉大学化学系
  • 收稿日期:1984-10-16 出版日期:1986-03-24 发布日期:1986-03-24

Spectrophotometric Study of the β-Type Color Reaction of Rare Earths-Amino C Acid Chlorophosphorazo

Guo Nairong1, Luo Qingyao2, Zeng Yun' e2   

  1. 1. The Research Institute of Environmental Protection Sciences of Wuhan, Wahan;
    2. Department of Chemistry, Wuhan University, Wuhan
  • Received:1984-10-16 Online:1986-03-24 Published:1986-03-24

PDF (PC)

摘要： 氨基C酸偶氮氯膦,化学名称为2-[2-(5-氯苯膦酸)-偶氮]-7-[2-(4,8-二磺酸)-偶氮)-1,8-二羟基萘-3,6-二磺酸[1]。具有良好的分析性能[2.3]。本文研究在盐酸介质中,与稀土元素发生的β型显色反应。主要试剂和仪器同文献[2]。

Abstract: In a HC1 medium, amino Cacid chlorophosphorazo reacts with rare earth elements, forming β-type complexes. The color reactions arc related to the acidity of the solutions both initial and final, the kinds and concentrations of the RE.The Ce-sub group demonstrates more strong trend than the Y-sub group one in forming β-type complexes. All of this is different from the other color reagents of this kind. It is seldom seen that the REdevelops color in such high acidity.

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