Comparison of pressurized liquid extraction and matrix solid-phase dispersion for the measurement of semivolatile organic compound accumulation in tadpoles.
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.
Department of Environmental and Molecular Toxicology, Oregon State University, 1007 ALS, Corvallis, Oregon 97331, USA.
Kerri
K
Stanley
Staci Massey
SM
Simonich
David
D
Bradford
Carlos
C
Davidson
Nita
N
Tallent-Halsell
D000818:Animals; D002623:Chemistry Techniques, Analytical / Q000379:methods*; D007814:Larva / Q000737:chemistry; D009930:Organic Chemicals / Q000032:analysis*; D011312:Pressure; D011898:Ranidae / Q000378:metabolism*; D015203:Reproducibility of Results; D052616:Solid Phase Extraction / Q000379:methods*; D014835:Volatilization
D009930:Organic Chemicals