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Ultra turrax® tube drive for the extraction of pesticides from egg and milk samples

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Abstract

The Ultra turrax® tube drive, already successfully applied for the extraction of plant materials, has also proved to be suitable for the analysis of pesticides in eggs and milk. In comparison to the matrix solid-phase dispersion (MSPD), the extraction is less time-consuming at excellent extraction efficiency. Further advantages are the flexibility of the extraction conditions with respect to the pH value and water activity. So, even strongly acidic pesticides such as phenoxy carboxylic acids can be extracted. Eighty-nine GC-amenable and 75 LC-amenable pesticides, which had been detected successfully in whole chicken eggs following MSPD extraction and further processing according to Hildmann et al., could also be analyzed with the modified method. In addition, the analysis spectrum could be expanded by 4 GC- and 37 LC-amenable substances. Of the 208 pesticides tested, 205 substances could be detected in whole chicken eggs. Similar excellent results were achieved for the milk matrix. Furthermore, the modified extraction method allows a determination of the fat content from the same analysis approach.

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Authors and Affiliations

  1. TU Dresden, Chair of Special Food Chemistry and Food Production, Bergstraße 66, 01062, Dresden, Germany

    Julia Sturm & Karl Speer

  2. Saxon State Institute of Health and Veterinary Affairs, Jägerstraße 8/10, 01099, Dresden, Germany

    Peter Wienhold & Thomas Frenzel

Authors
  1. Julia Sturm
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  2. Peter Wienhold
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  3. Thomas Frenzel
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  4. Karl Speer
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Corresponding author

Correspondence to Karl Speer.

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The authors declare that they have no conflict of interest.

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Published in the topical collection Food Safety Analysis with guest editor Steven J. Lehotay.

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Sturm, J., Wienhold, P., Frenzel, T. et al. Ultra turrax® tube drive for the extraction of pesticides from egg and milk samples. Anal Bioanal Chem 410, 5431–5438 (2018). https://doi.org/10.1007/s00216-018-1254-9

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  • DOI: https://doi.org/10.1007/s00216-018-1254-9

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