中华医学超声杂志

应用化学 ›› 1985, Vol. 0 ›› Issue (1): 43-47.

• 研究论文 • 上一篇    下一篇

钪-甘氨酸邻甲酚红-溴化十六烷基三甲铵三元络合物显色反应的研究

任英, 张亚飞   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1984-05-18 修回日期:1984-09-24 出版日期:1985-03-10 发布日期:1985-03-10

STUDY ON THE COLOUR REACTION OF THE TERNARY COMPLEX OF SCANDIUM-GLCINE CRESOL RED-CETYLTRIMETHYL AMMONIUM BROMIDE

Ren Ying, Zhang Yafei   

  1. Changchun Institute of Applied Chemistry, Academia Sinica
  • Received:1984-05-18 Revised:1984-09-24 Published:1985-03-10 Online:1985-03-10

PDF

293

被引次数

24

摘要： 在微酸性溶液中钪与甘氨酸邻甲酚红(GCR)和溴化十六烷基三甲铵(CTMAB)形成红紫色的三元络合物。在其最大吸收波长540nm处的表观摩尔吸光系数为4.14×104。三元络合物的络合比为SC:GCR:CTMAB=1:2:2。当以乙酰丙酮及邻菲啰啉为联合掩蔽剂时,大量稀土元素及10余种共存元素不干扰钪的测定。用本法测定了合成的混合稀土样品中的少量钪,得到了较满意的结果。

Abstract: A red-violet ternary complex of scandium with GCR and CTMAB is formed in a weak acid solution. The maximum absorption. of the ternary complex is at 540nm with apparent molar absorption coefficient of 4.14?104. The composition of ternary complex is found as: Sc:GCR:CTMAB=1:2:2. For the Sc dertermination the interfreences of the diverse ions was reduced by masking with a mixture of acetylaceton and phenanthroline.The method has been used satisfactorily to determine small amount of Sc in the synthetic mixture of rare earths.

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