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Organic azo-dyes in quantitative analysis

III. Spectrophotometric determination of thorium
  • M. R. Zaki
  • K. Shakir
Originalabhandlungen

Summary

Chrom Red Brown 5 RD has been found as a sensitive reagent for the spectrophotometric determination of thorium. Concentrations as low as 1 μg thorium/1 ml can be easily determined at wave length 485 nm. Sulphate, chloride, ferric and zirconium ions badly interfere, while Li, Na, K, Ni, Co, Cu2+, Cd, Ca, Mg and Cr3+ do not. U6+ and Ce4+ are permissible as traces.

Keywords

Sulphate Chloride Physical Chemistry Analytical Chemistry Zirconium 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1961

Authors and Affiliations

  • M. R. Zaki
    • 1
  • K. Shakir
    • 1
  1. 1.Atomic Energy EstablishmentCairo

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