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Chromatographia

, Volume 11, Issue 6, pp 331–334 | Cite as

A thin-layer chromatographic procedure for estimating traces of copper in edible fats

  • N. Turina
  • S. Turina
Originals

Summary

To carry out estimations as stated in the title, the sample matrix was first destroyed by an improved incineration procedure. Very small quantities of copper (not exceeding, however, 0.03 μg/cm in the chromatogram) were estimated by measurement of fluorescence after spraying with an ammonium phosphate reagent. Larger quantities (up to 0.3 μg/cm) were estimated on the basis of copper-induced quenching of fluorescence produced by spraying the developed chromatograms with glucose. In these experiments the metal is located as non-fluorescent areas on a yellowish-green fluorescent background.

Keywords

Glucose Copper Phosphate Ammonium Analytical Chemistry 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. [1]
    S. Turina, V. Jamnicki, Anal. Chem.44, 1893 (1972).CrossRefGoogle Scholar
  2. [2]
    N. Turina, S. Turina, Chromatogr.10, 97 (1977).Google Scholar
  3. [3]
    “Camag”: Manual for Camag-Turner Scanning fluorimeter.Google Scholar
  4. [4]
    S. Turina, L. Klasinc, Chromatogr.7, 203 (1974).Google Scholar
  5. [5]
    G. W. Snedecor, “Statistical Methods”, Iowa State College Press, Ames, Iowa 1956, p. 122.Google Scholar

Copyright information

© Friedr. Vieweg & Sohn Verlagschesellschaft mbH 1978

Authors and Affiliations

  • N. Turina
    • 1
  • S. Turina
    • 2
  1. 1.Economic FacultyUniversity of ZagrebZagrebYugoslavia
  2. 2.Institute of Materials ResearchUniversity of ZagrebZagrebYugoslavia

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