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Related Experiment Videos

Development of a murre (Uria spp.) egg control material.

Stacy S Vander Pol1, Michael B Ellisor, Rebecca S Pugh

  • 1Hollings Marine Laboratory, Analytical Chemistry Division, National Institute of Standards and Technology (NIST), 331 Fort Johnson Rd., Charleston, SC, 29412, USA. stacy.vanderpol@nist.gov

Analytical and Bioanalytical Chemistry
|November 15, 2006
PubMed
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A new seabird egg control material was developed for the Seabird Tissue Archival and Monitoring Project (STAMP) to accurately track environmental contaminants. This material provides a better matrix match for Alaskan murre eggs than existing options.

Area of Science:

  • Environmental Science
  • Ecotoxicology
  • Wildlife Monitoring

Background:

  • The Seabird Tissue Archival and Monitoring Project (STAMP) uses seabird eggs to monitor decadal trends in environmental contaminants across Alaska.
  • Existing quality assurance materials, like herring gull egg quality assurance (HGQA), have contaminant concentrations higher than those found in Alaskan murre eggs, limiting their effectiveness.
  • A need existed for a matrix- and concentration-specific control material for seabird eggs to ensure analytical quality.

Purpose of the Study:

  • To develop and characterize a new control material using common and thick-billed murre eggs for environmental contaminant monitoring.
  • To ensure the quality and accuracy of analytical data generated by the STAMP initiative.
  • To provide a more appropriate reference material for analyzing contaminants in Alaskan seabird eggs.

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Main Methods:

  • Collected 12 murre eggs from Bering Sea and Gulf of Alaska nesting sites.
  • Cryohomogenized eggs to create 190 aliquots of control material.
  • Analyzed the control material at National Institute of Standards and Technology (NIST) and Environment Canada (EC) facilities for PCB, organochlorine pesticide, and PBDE congeners.

Main Results:

  • Characterized concentrations of 63 polychlorinated biphenyl (PCB) congeners, 20 organochlorine pesticides, and 11 polybrominated diphenyl ether (PBDE) congeners in the new control material.
  • Determined a total PCB concentration of approximately 58 ng g(-1) wet mass.
  • Presented results for analytes not previously available on existing control material certificates of analysis.

Conclusions:

  • The developed murre egg control material is suitable for ensuring analytical quality in the STAMP project.
  • This new material offers improved accuracy for contaminant monitoring in Alaskan seabird populations.
  • The findings support long-term environmental contaminant trend analysis in Arctic and sub-Arctic ecosystems.