应用化学 ›› 1985, Vol. 0 ›› Issue (3): 12-17.

• 研究论文 • 上一篇    下一篇

稀土高氯酸溶液导数光谱的研究及其在分析中的应用 Ⅲ.导数分光光度法测定混合稀土中的镨、钕、钐、铕、镝、钬、铒、铥

任英, 佟玉兰   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1984-07-13 修回日期:1984-12-13 出版日期:1985-09-10 发布日期:1985-09-10

STUDIES ON HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅲ.DETERMINATION OF PRASEODYMIUM,NEODYMIUM,SAMARIUM,EUROPIUM,DYSPROSIUM,ERBIUM,AND THULIUM IN THE RARE EARTH MIXTURE BY DERIVATIVE SPECTROPHOTOMETRY

Ren Ying, Tong Yulan   

  1. Changchun Institute of Applied Chemisry, Academia Sinica
  • Received:1984-07-13 Revised:1984-12-13 Published:1985-09-10 Online:1985-09-10

摘要: 本文探讨了共存稀土离子及温度对镨、钕、钐、铕、镝、钬、铒、铥等稀土离子的高氯酸溶液的二阶导数吸收光谱的影响。在所选定的分析峰位,共存稀土离子或不干扰或仅存在轻微干扰,而对于待测稀土离子导数峰的这种轻微干扰及温度的影响,都可用校正系数法消除。文中提出了一种在混合稀土(十五个稀土元素共存)中直接、快速测定上述八个稀土元素的导数光度法,并在合成样品及实际样品分析中获得了满意的结果。

Abstract: A higher derivative spectrophotometric method for the determination of individual rare earths has been developed. The method described appears quite adequate in terms of rapidity and simplicity and has been applied to the determination of Pr, Nd, Sm, Eu, Dy, Ho, Er and Tm in mixed rare earth samples with satisfactory results.