Determination of Rhodium by Differential Pulse Polarography

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  • Received : 1999.06.01
  • Published : 2000.02.25

Abstract

Determination of trace rhodium, based on catalytic reduction of protons by the adsorbed Rhformaldehyde complexes formed in formaldehyde-hydrochloric acid medium, was demonstrated. The condition for the measurements of Rh at trace levels was 0.004%(w/v) formaldehyde-0.75M hydrochloric acid. In this medium detection limit was $7.0{\times}10^{-12}M$ and the linear dynamic range was $1.0{\times}10^{-11}{\sim}1.0{\times}10^{-8}M$ Rh. There were no interferences from other platinum group metal ions even in the presence of a 500-fold excess.

Keywords

Rhodium;Differential Pulse Polarography

References

  1. J. Korean Chem. Soc. v.39 M.Z. Czae;C. Lee;T.K. Hong;Y.S. Kwon;M.J. Hong
  2. Bull. Korean Chem. Soc. v.15 T.K. Hong;M.Z. Czae;C.Lee;Y.S. Kwon;M.J. Hong
  3. J. Korean Chem. Soc. v.41 M.Z. Czae;Y.S. Kwon;S.J. Kim
  4. Talanta v.38 J. Wang;Z. Taha
  5. J. Electroanal. Chem. v.3 P.W. Alexander;G.L. Orth
  6. Talanta v.50 M.Z. Czae
  7. Z. analyt. chem. v.219 R. Neeb;W. Horstmann
  8. unpublished result Y.S. Kwon;M.Z. Czae