Skip to main content
SpringerLink
Log in

An extraction-photometric method for the determination of rare earths using mixed ligands

Eine Methode zur Extraktion und photometrischen Bestimmung Seltener Erden mit gemischten Liganden

  • Published:
Microchimica Acta Aims and scope Submit manuscript

Summary

A new procedure has been developed for the photometric determination of rare-earth metal ions with 4-(2-pyridyl azo)resorcinol (PAR), antipyrine and perchlorate and extraction into nitrobenzene of the mixed ligand complex formed at pH 6.5. Optimum conditions for the photometric determination, Beer's law range, sensitivity of the colour reaction, photometric precision and the interference of various foreign ions are reported. The method is simple, sensitive and fairly accurate. The composition of the mixed-ligand complexes and their conditional extraction constants have been determined.

Zusammenfassung

Ein neues Verfahren zur photometrischen Bestimmung Seltener Erden mit 4-(2-Pyridylazo)~resorcin (PAR), Antipyrin und Perchlorat nach Extraktion der Komplexverbindung bei pH 6,5 mit Nitrobenzol wurde beschrieben. Die optimalen Arbeitsbedingungen, das Gültigkeitsgebiet des Beerschen Gesetzes, die Empfindlichkeit der Farbreaktion, die photometrische Genauigkeit und die Störung durch verschiedene Fremdionen wurden be- schrieben. Das Verfahren ist einfach, empfindlich und genau. Die Zusammensetzung der Komplexverbindungen und deren jeweilige Extraktionskonstanten wurden ermittelt.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. K. N. Munshi and A. K. Dey, Analyt. Chemistry36, 2003 (1964).

    Google Scholar 

  2. K. N. Munshi and A. K. Dey, Mikrochim. Acta [Wien]1971, 751.

  3. L. Sommer and H. Novotná, Talanta14, 457 (1967).

    Google Scholar 

  4. I. M. Kolthoff and P. J. Elving, Treatise on Analytical Chemistry, Part II, Vol. 8, New York: Interscience. 1963, p. 57.

    Google Scholar 

  5. I. M. Kolthoff and R. Belcher, Volumetric Analysis, Vol. III, New York: Interscience. 1957. p. 403.

    Google Scholar 

  6. R. A. Chalmers and D. M. Dick, Analyt. Chim. Acta31, 520 (1964).

    Google Scholar 

  7. V. I. Egorova and V. N. Kumok, Zh. Obshch. Khim.41, 1786 (1971).

    Google Scholar 

  8. J. Ueda, Nippon Kagaku Zasshi92, 849 (1971).

    Google Scholar 

  9. P. Spacu, E. Antonescu, and S. Plostinaru, Rev. Roumaine chim.9, 121 (1964).

    Google Scholar 

  10. Chang Tiao-Hsu, Lin Ai-Ling, and Yang Sub-Ing, Hua Hsuch4, 111 (1971).

    Google Scholar 

  11. J. S. Coleman, L. P. Varga, and S. H. Mastin, Inorg. Chem.9, 1015 (1970).

    Google Scholar 

  12. P. Job, Ann. chim., Paris9, 113 (1928).

    Google Scholar 

  13. H. Irving and T. B. Pierce, J. Chem. Soc.1959, 2565.

  14. T. B. Pierce and P. F. Peck, U. K. Atomic Energy Authority Research Group Project-AERE-R 4187, unclassified, 1962.

  15. H. E. Bent and C. L. French, J. Amer. Chem. Soc.63, 568 (1941).

    Google Scholar 

  16. W. Likussar and D. F. Boltz, Analyt. Chemistry43, 1265 (1971).

    Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Department of Chemistry, Andhra University, 530003, Waltair, India

    M. V. Krishna Murthy & D. Satyanarayana

Authors
  1. M. V. Krishna Murthy
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. D. Satyanarayana
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Krishna Murthy, M.V., Satyanarayana, D. An extraction-photometric method for the determination of rare earths using mixed ligands. Mikrochim Acta 73, 97–105 (1980). https://doi.org/10.1007/BF01197236

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01197236

Keywords

Search

Navigation