应用化学 ›› 1990, Vol. 0 ›› Issue (1): 58-61.

• 研究论文 • 上一篇    下一篇

稀土高氯酸溶液导数吸收光谱的研究及其在分析中的应用——Ⅵ.高阶导数光度法直接测定轻稀土-铝中间合金中的铈、镨和钕

阎雁, 任英   

  1. 中国科学院长春应用化学研究所 长春 130022
  • 收稿日期:1989-03-04 修回日期:1989-06-13 出版日期:1990-02-10 发布日期:1990-02-10
  • 基金资助:
    国家的自然科学基金

HIGHER DERIVATIVE ABSORPTION SPECTRA OF RARE EARTH IONS IN PERCHLORIC ACID AND THEIR ANALYTICAL APPLICATION Ⅵ.DIRECT DETERMINATION OF CERIUM,PRASEODYMIUM AND NEODYMIUM IN LICHT RARE EARTH-ALUMINIUM ALLOY BY DERIVATIVE SPECTROPHOTOMETRY

Yan Yan, Ren Ying   

  1. Changchun Institute of Applied Chemistry, Academia Sinica, Changchun 130022
  • Received:1989-03-04 Revised:1989-06-13 Published:1990-02-10 Online:1990-02-10

摘要: 本文提出了用高氯酸溶液中的高阶导数光度法直接测定稀土-铝合金中铈、镨、钕、再用差减法求镧的方法。分析结果与X-荧光光谱法结果一致。本方法具有快速、简便和准确的优点。

关键词: 导数吸收光谱法, 稀土元素, 铝合金, 分光光度测定法

Abstract: A direct determination method of cerium,praseodymium and neodymium in the lightrare earth-aluminium alloy by using higher-derivative spectrophotometry in perchloric acidsolution is proposed. The content of lanthanum is determined by substraction. The resultswere in good agreement with those determined by x-ray fluorescence method. The methodis rapid, simple and accurate.

Key words: derivative absorption spectroscopy, rare earth, aluminium alloy, spectrop-hotometry