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Toxic trace metals in food

II. A comparative study of the levels of toxic trace metals in wine by differential pulse anodic stripping voltammetry and electrothermal atomic absorption spectrometry

Toxische Spurenmetalle in Lebensmitteln

II. Eine vergleichende Studie über die Konzentration toxischer Spurenmetalle im Wein durch differentielle anodische Pulsinversvoltammetrie und elektrothermale Atomabsorptionsspektrometrie

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Zusammenfassung

Eine neue besonders leistungsfähige Methode zur Bestimmung der Gehalte der toxischen Spurenmetalle Cadmium, Blei und Kupfer in Weinen mit der differentiellen anodischen Pulsinversvoltammetrie (DPASV) nach vorhergehender UV-Bestrahlung der Probe wird mit der bislang weithin angewandten Alternative elektrothermale Atomabsorptionsspektrometrie (AAS) verglichen. Auf diese Weise wird auch wechselseitig die mit beiden methodischen Alternativen erhältliche Richtigkeit der Daten ermittelt. Die besonderen Vorzüge der neuen voltammetrischen Methode zur Kontrolle des Gehaltes toxischer Spurenmetalle im Wein demonstrieren die Resultate der Untersuchung einer typischen Auswahl von 36 Weinen der letzten Jahrgänge und wichtigsten Rebsorten aus den deutschen und einigen europäischen Hauptanbaugebieten.

Summary

A new high-performance analytical procedure for the determination of the toxic trace metals cadmium, lead and copper in wines by differential pulse anodic-stripping voltammetry (DPASV) subsequent to UV irradiation of the sample is compared with the hitherto more common application of electrothermal atomic absorption spectrometry (AAS). In this manner also mutually the accuracy attainable with both alternatives has been established. The particularly favourable potentialities of the new voltammery approach for toxic metal control of wines are demonstrated by the investigation of a typical selection of 36 wines from recent vintages and common vine types of the German and some European wine cultivating regions.

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Authors and Affiliations

  1. Institute of Chemistry, Institute 4 Applied Physical Chemistry, Nuclear Research Center (KFA), D-5170, Juelich 1, Germany

    Jerzy Golimowski, Pavel Valenta, Markus Stoeppler &  Hans Wolfgang Nürnberg

Authors
  1. Jerzy Golimowski
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  2. Pavel Valenta
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  3. Markus Stoeppler
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  4. Hans Wolfgang Nürnberg
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Additional information

Attached from Institute of Fundamental Problems of Chemistry, University of Warsaw, Poland, in the frame of the joint research project on “Toxic Metals in the Environment”

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Golimowski, J., Valenta, P., Stoeppler, M. et al. Toxic trace metals in food. Z Lebensm Unters Forch 168, 439–443 (1979). https://doi.org/10.1007/BF01479257

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  • DOI: https://doi.org/10.1007/BF01479257

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