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Fresenius' Zeitschrift für analytische Chemie

, Volume 327, Issue 2, pp 175–178 | Cite as

Die aufschlußfreie Bestimmung von Schwermetallen (Zn, Cd, Pb, Cu) in Getränken (Wein) durch inverse Voltammetrie in einer Durchflußzelle

  • Faramarz Wahdat
  • Rolf Neeb
Originalarbeiten Lebensmittel und Biologisches Material

Digestion-free determination of trace metals (Zn, Cd, Pb, Cu) in beverages (wine) by inverse voltammetry in flow-through cells

Summary

Digestion-free determination of trace-metals (Zn, Cd, Pb, Cu) in beverages by inverse voltammetry in a flow-through cell equipped with a mercury film-electrode is described. Optimal enrichment potentials are obtained by inspection of the pseudopolarograms of the elements in the original diluted sample solution. After the deposition step in the untreated sample solution stripping is effected in a proper supporting electrolyte after medium exchange. Values obtained by this techniques with various samples compare well with those obtained by usual procedures including wet digestion of the samples.

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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Faramarz Wahdat
    • 1
  • Rolf Neeb
    • 1
  1. 1.Institut für Anorganische Chemie und Analytische ChemieJohannes Gutenberg-Universität MainzMainzBundesrepublik Deutschland

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