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Comparison of pressurized liquid extraction and matrix solid phase dispersion for the measurement of semi-volatile organic compound accumulation in tadpoles

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Abstract
  • Analytical methods capable of trace measurement of semi-volatile organic compounds (SOCs) are necessary to assess the exposure of tadpoles to contaminants as a result of long-range and regional atmospheric transport and deposition. The following study compares the results of two analytical methods, one using pressurized liquid extraction (PLE) and the other using matrix solid phase dispersion (MSPD), for the trace measurement of over 70 SOCs, including current-use pesticides, in tadpole tissue. The MSPD method resulted in improved SOC recoveries and precision compared to the PLE method. The MSPD method also required less time, consumed less solvent, and resulted in the measurement of a greater number of SOCs than the PLE method.
  • Keywords: pressurized liquid extraction, tadpoles, semi-volatile organic compounds, pesticides, matrix phase solid dispersion
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  • Stanley, K., Simonich, S. M., Bradford, D., Davidson, C. & Tallent-Halsell, N. (2009). Comparison of pressurized liquid extraction and matrix solid-phase dispersion for the measurement of semivolatile organic compound accumulation in tadpoles. Environmental Toxicology and Chemistry, 28(10), 2038–2043. doi:10.1897/08-342.1
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  • 28
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  • 10
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  • The research described herein was funded, in part, by the U.S. Environmental Protection Agency, through Interagency Agreement DW14989008 with the National Park Service and this article has been approved for publication. Funding has also been provided in part through an agreement with the California State Water Resources Control Board (SWRCB) pursuant to the Costa-Machado Water Act of 2000 (Proposition 13) and any amendments thereto for the implementation of California's Nonpoint Source Pollution Control Program. This publication was made possible in part by the U.S. National Institute of Environmental Health Sciences (grantP30ES00210).
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