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Comparison of pressurized liquid extraction and matrix solid‐phase dispersion for the measurement of semivolatile organic compound accumulation in tadpoles
Author(s) -
Stanley Kerri,
Simonich Staci Massey,
Bradford David,
Davidson Carlos,
TallentHalsell Nita
Publication year - 2009
Publication title -
environmental toxicology and chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.1
H-Index - 171
eISSN - 1552-8618
pISSN - 0730-7268
DOI - 10.1897/08-342.1
Subject(s) - extraction (chemistry) , matrix (chemical analysis) , dispersion (optics) , chromatography , pesticide , environmental chemistry , chemistry , detection limit , phase (matter) , trace amounts , ecology , medicine , physics , alternative medicine , organic chemistry , pathology , optics , biology
Analytical methods capable of trace measurement of semivolatile 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 present 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 more than 70 SOCs in tadpole tissue, including current‐use pesticides. 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.