Skip to main content
Log in

Pyridine ketoximes as analytical reagents. XVI

The spectrophotometric determination of cobalt in refined iron and analytical reagent grade iron salts with 2-pyridyl-2-thienyl-β-ketoxime

  • Published:
Microchimica Acta Aims and scope Submit manuscript

Summary

A procedure is described for spectrophotometric determination of trace amounts of cobalt in pure iron products with the reagent 2-pyridyl-2-thienyl-β-ketoxime. The sensitivity of the procedure is increased by the use of 4-cm cells. Beer's law is obeyed over the concentration range 0.05 to 0.600 p. p. m. The precision and accuracy of the method are reported and the effect of diverse ions is described. The results of the cobalt analyses of a number of commercially available iron products are given.

Zusammenfassung

Ein Verfahren zur spektrophotometrischen Bestimmung von Spuren Kobalt in reinem Eisen mit 2-Pyridyl-2-thienyl-β-ketoxim wurde angegeben. Dessen Empfindlichkeit wurde durch Verwendung von 4-cm-Küvetten erhöht. Das Beersche Gesetz gilt von 0,05 bis 0,600 ppm. Die Genauigkeit und Richtigkeit der Methode sowie der Einfluß verschiedener Ionen wurden dargelegt. Ergebnisse für eine Anzahl handelsüblicher Eisenprodukte wurden angeführt.

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

Access this article

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

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. H. R. Notenboom, W. J. Holland, and R. G. Billinghurst, Mikrochim. Acta [Wien]1973, 467.

  2. R. C. Rooney, Metallurgia58, 205 (1958).

    Google Scholar 

  3. A. Ringbom, Z. analyt. Chem.115, 332 (1938).

    Google Scholar 

  4. G. H. Ayres, Analyt. Chemistry21, 6526 (1949).

    Google Scholar 

  5. H. Okochi, Trans. Wat. Res. Inst. Metals15 (3), 124 (1973).

    Google Scholar 

  6. J. Adam and R. Přibil, Hutn. Listy27, 137 (1972).

    Google Scholar 

  7. Tran-Van-Danh, J. Spitz, and C. Mathien, Analyt. Chim. Acta36, 204 (1966).

    Google Scholar 

  8. S. Motomizu, Japan Analyst21, 1507 (1971).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Beaupré, P.W., Holland, W.J. Pyridine ketoximes as analytical reagents. XVI. Mikrochim Acta 70, 229–234 (1978). https://doi.org/10.1007/BF01201613

Download citation

  • Received:

  • Revised:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01201613

Keywords

Navigation