Spectrophotometric Determination of Rare Earths in Ligand Buffer Masking Systems

  • Jai-kai Cheng
  • Qing-yao Luo
  • Ru-xiu Cai
  • Xin-xiang Li
  • Yung-ao Tseng

Abstract

Metal ions such as Fe(III), Al(III), Cr(III), Ti(IV) and Zr(IV) interfere strongly with the spectrophotometric determination of rare earths with organic reagents. We have utilized “ligand buffers” (1) for the spectrophotometric determination of rare earths with arsenazo III, dicarboxyarsenazo III, chlorophosphonazo III, carboxynitrazo and semixylenolorange cetylpyridiniumbromide (CPB)

Keywords

EDTA Yttrium HEDTA Dicarboxy 

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References

  1. 1.
    Motharu Tanaka, Anal. Chim. Acta, 29: 193 (1963).CrossRefGoogle Scholar
  2. 2.
    Yung-ao Tseng, etal.. Chemical Journal of Chinese Universities, 1:60 (1980).Google Scholar

Copyright information

© Plenum Press, New York 1982

Authors and Affiliations

  • Jai-kai Cheng
    • 1
    • 2
  • Qing-yao Luo
    • 1
    • 2
  • Ru-xiu Cai
    • 1
    • 2
  • Xin-xiang Li
    • 1
    • 2
  • Yung-ao Tseng
    • 1
    • 2
  1. 1.Laboratory of Analytical ChemistryWuhan UniversityWuhanChina
  2. 2.Department of ChemistryWuhan UniversityWuhanChina

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