Skip to main content
SpringerLink
Log in

Microestimation of phosphate in the presence of large amounts of fluoride

  • Published:
Microchimica Acta Aims and scope Submit manuscript

Summary

A method for the microestimation of orthophosphate in the presence of large amounts of fluoride is described. A lead ion-selective electrode and a double-junction reference electrode are used to monitor the potentiometric titration with 0.01M lead perchlorate. Solutions are buffered at pH 8.25 to 8.75. A computer-controlled titration system is used for titration and data processing. Up to 400 mg of fluoride, a 13000-fold excess, can be tolerated in the estimation of 10−6 M phosphate.

Zusammenfassung

Ein Verfahren zur Mikrobestimmung von Orthophosphat in Gegenwart großer Mengen Fluorid wurde beschrieben. Eine bleiionen-spezifische Elektrode und eine doppelpolige Bezugselektrode wurden zur Durchführung der potentiometrischen Titration mit 0,01-m Bleiperchlorat benützt. Die Lösungen werden auf ein pH zwischen 8,25 und 8,75 gepuffert. Ein Computer-gesteuertes Titrationssystem wird für Maßanalyse und Datenverarbeitung verwendet. Bis zu 400 mg Fluorid, also ein 1300-facher Überschuß, ist bei der Bestimmung von 10−6 Mol Phosphat tolerierbar.

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. C. Eger and J. Lipke, Analyt. Chim. Acta20, 548 (1959).

    Google Scholar 

  2. D. N. Bernhardt and A. R. Wreath, Analyt. Chemistry27, 440 (1955).

    Google Scholar 

  3. D. H. McColl and T. A. O'Donnell, Analyt. Chemistry36, 848 (1964).

    Google Scholar 

  4. R. Belcher and C. L. Wilson, New Methods of Analytical Chemistry, 2nd Ed. London: Chapman & Hall. 1964. p. 325.

    Google Scholar 

  5. W. Selig, Mikrochim. Acta [Wien]1970, 564.

  6. J. W. Frazer, A. M. Kray, W. Selig, and R. Lim, Analyt. Chemistry47, 869 (1975).

    Google Scholar 

  7. W. Selig, J. W. Frazer, and A. M. Kray, Mikrochim. Acta [Wien] 1975 II, in the press.

  8. L. R. Carlson and A. M. Kray, Lawrence Livermore Laboratory, Livermore, California, Rept. UCID-30031 (1971).

    Google Scholar 

  9. A. Savitzky and M. J. E. Golay, Analyt. Chemistry36, 1627 (1964).

    Google Scholar 

  10. R. N. Heistand and C. T. Blake, Mikrochim. Acta [Wien]1972, 212.

Download references

Author information

Authors and Affiliations

  1. Lawrence Livermore Laboratory, University of California, 94550, Livermore, Cal., USA

    Walter Selig, Jack W. Frazer & Arthur M. Kray

Authors
  1. Walter Selig
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Jack W. Frazer
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Arthur M. Kray
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

This work was performed under the auspices of the U. S. Atomic Energy Commission.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Selig, W., Frazer, J.W. & Kray, A.M. Microestimation of phosphate in the presence of large amounts of fluoride. Mikrochim Acta 64, 581–587 (1975). https://doi.org/10.1007/BF01219229

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01219229

Keywords

Search

Navigation