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Microdetermination of tellurium and organo-tellurium compounds

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Summary

A method is described to convert elemental tellurium and organotellurium compounds quantitatively to Te(IV) by digestion with a mixture of nitric and sulfuric acids in the micro-Kjeldahl flask. After removal of nitrogen oxides by means of urea, exactly 5 ml of 0.02N potassium dichromate is added, whereupon Te(IV) is oxidized to Te(VI). The tellurium content of the sample is related to the amount of dichromate consumed, the latter being determined either spectrophotometrically or by back-titration with 0.02N ferrous sulfate. This method, applicable to 1–4 mg of tellurium, is amenable to automation and multi-element determinations.

Zusammenfassung

Ein Verfahren zur quantitativen Überführung von elementarem und organisch gebundenem Tellur in Te(IV) durch Mineralisierung mit einem Gemisch von Salpetersäure und Schwefelsäure im Mikro-Kjeldahl-Kölbchen wurde beschrieben. Nach Entfernung der Stickoxide mit Harnstoff werden genau 5 ml 0,02-n Kaliumbichromat zugesetzt, wodurch Te(IV) zu Te(VI) oxydiert wird. Der Tellurgehalt der Probe ergibt sich aus der Menge verbrauchten Bichromats, die entweder spektrophotometrisch oder durch Rücktitration mit 0,02-n Eisen(II)-sulfat bestimmt wird. Dieses auf 1 bis 4 mg Te anwendbare Verfahren ist automatisierbar und bei gleichzeitiger Bestimmung mehrerer Elemente anwendbar.

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References

  1. G. Ingram, Methods of Organic Elemental Analysis. New York: Reinhold. 1962. p. 369.

    Google Scholar 

  2. H. D. K. Drew andC. R. Porter, J. Chem. Soc. London11, 2091 (1929).

    Google Scholar 

  3. E. T. Tsao, Chem. Ind. China10, No. 2, 15 (1935).

    Google Scholar 

  4. I. M. Kolthoff andP. J. Elving (ed.), Treatise on Analytical Chemistry. Part II, Vol. 12. New York: Wiley. 1965. p. 295.

    Google Scholar 

  5. M. Večeřa, Organická Elementární Analýza. Praha: Nakladatelství Technické Literatury. 1967.

    Google Scholar 

  6. K. Hozumi (ed.), Quantitative Organic Microanalysis (in Japanese). Tokyo: Nankodo. 1969. p. 418.

    Google Scholar 

  7. T. S. Ma andM. Gutterson, Analyt. Chemistry38, 186 R (1966);40, 147 R (1968);42, 105 R (1970).

    Google Scholar 

  8. N. D. Cheronis andT. S. Ma, Organic Functional Group Analysis. New York: Wiley. 1964. p. 83.

    Google Scholar 

  9. F. H. Kruse, R. W. Sanftner, andJ. F. Suttle, Analyt. Chemistry25, 500 (1953).

    Google Scholar 

  10. R. Beyak andJaselskis, Analyt. Chemistry42, 518 (1970).

    Google Scholar 

  11. F. D. Snell, C. T. Snell, andC. A. Snell, Colorimetric Methods of Analysis, Vol. II A. Princeton: Van Nostrand. 1959. p. 215.

    Google Scholar 

  12. M. Vobetsky, V. D. Nefedov, andE. N. Sinotova, Zh. obsch. Khim.35, 1684 (1965).

    Google Scholar 

  13. Selenium-Tellurium Development Association, Symposium on the Properties and Use of Selenium and Tellurium. New York. October 26–27, 1965. Conference on Organic Selenium and Tellurium Chemistry. New York. March 22–23, 1971.

  14. J. G. Gómez, M. E. D. Mora, andF. P. Pérez, Información Quim. analit. pura apl. Ind.19, 173 (1965).

    Google Scholar 

  15. C. K. Hanson, Analyt. Chemistry29, 1204 (1957).

    Google Scholar 

  16. T. S. Ma andJ. D. McKinley, Jr., Mikrochim. Acta [Wien]1954, 4.

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Authors and Affiliations

  1. The Department of Chemistry, City University of New York, 11210, Brooklyn, N. Y.

    T. S. Ma & W. G. Zoellner

  2. Department of Chemistry, New York University, 10003, New York, N. Y., USA

    T. S. Ma & W. G. Zoellner

Authors
  1. T. S. Ma
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  2. W. G. Zoellner
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Ma, T.S., Zoellner, W.G. Microdetermination of tellurium and organo-tellurium compounds. Mikrochim Acta 59, 329–334 (1971). https://doi.org/10.1007/BF01219631

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  • DOI: https://doi.org/10.1007/BF01219631

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