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Related Experiment Videos

First world-wide interlaboratory study on polybrominated diphenylethers (PBDEs).

Jacob de Boer1, Wim P Cofino

  • 1Netherlands Institute for Fisheries Research, IJmuiden. j.deboer@rivo.dlo.nl

Chemosphere
|May 10, 2002
PubMed
Summary

The first global study on Polybrominated diphenyl ethers (PBDEs) found variable results, especially for BDE 209. Improvements in analytical methods are needed for accurate PBDEs quantification in environmental samples.

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Area of Science:

  • Environmental Chemistry
  • Analytical Chemistry
  • Ecotoxicology

Background:

  • Polybrominated diphenyl ethers (PBDEs) are persistent organic pollutants with potential environmental and health impacts.
  • Standardized analytical methods are crucial for reliable monitoring and risk assessment of PBDEs.
  • Interlaboratory studies are essential for evaluating and improving analytical performance.

Purpose of the Study:

  • To assess the performance of laboratories worldwide in analyzing PBDEs in various matrices.
  • To identify challenges and areas for improvement in PBDEs analytical methodologies.
  • To evaluate the accuracy and precision of PBDEs measurements across different compounds and sample types.

Main Methods:

  • An international interlaboratory study was conducted involving 18 laboratories from nine countries.

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  • Participants analyzed five biological samples, two sediment samples, and two standard solutions for PBDEs.
  • Data analysis focused on calculating relative standard deviations (Rsd) for different PBDE congeners.

    • Main Results:

    • Acceptable results were obtained for BDE 47 (Rsd 17-40%).
    • Significant variability and need for improvement were observed for BDEs 99, 100, 153, and 154.
    • BDE 209 analysis was found to be uncontrolled, with highly variable data for biota and sediment samples (Rsd up to 78%).

    Conclusions:

    • Further refinement of analytical techniques is necessary for accurate and reliable quantification of most PBDE congeners.
    • Specific attention is required for BDE 209 analysis, emphasizing control of light and temperature exposure.
    • The study highlights the need for improved standardization and quality control in environmental PBDEs monitoring.