The following compounds are listed by UNEP to be POPS: • Pesticides: Aldrin, Chlordane, DDT, Dieldrin, Endrin, Heptachlor, Mirex, and Toxaphene • Industrial chemicals: Hexachlorobenzene, and PCB (polychlorinated biphenyl) • Chemical by-products (Dioxins): Polychlorinated dibenzo-p-dioxins and polychlorinated dibenzofurans (PCDD and PCDF) This application note describes methods and results for extraction of the POPs listed above, with tables comparing ASE to traditional extraction methods.

Accelerated solvent extraction is an extraction method that significantly streamlines sample preparation. PCBs are found in many solid waste materials. This AN describes the application of accelerated solvent extraction to the extraction of PCBs from sewage sludge, river sediments, marine sediments, and oyster tissue. The procedures described in this AN meet the requirements for sample extraction of solid samples as determined by U.S. EPA Method 3545.

Accelerated Solvent Extraction (ASE®) is an extraction method that significantly streamlines sample preparation. The procedures described in this application note meet the requirements for sample extraction as prescribed by EPA Method 3545. This method is applicable to the extraction of water-insoluble or slightly water-soluble volatiles and semivolatiles in preparation for gas chromatographic or GC/MS measurement. The method is applicable to the extraction of chlorinated pesticides from soils, clays, wastes, and sediments containing from 5 to 250 μg/kg of the target compounds.

Accelerated Solvent Extraction (ASE) is a new extraction method that significantly streamlines sample preparation. ASE provides a more convenient, faster, and less solvent intensive method than previously available for extraction of PAHs from solid wastes. PAH recoveries by ASE are equivalent to other more solvent intense methods such as Soxhlet or sonication. ASE also avoids the multiple washing procedures associated with sonication. The procedures described here meet the requirements for extraction of PAHs from solid waste in U.S. EPA Method 3545.

Accelerated solvent extraction provides a more convenient, faster, and less solvent intensive method than previously available for the extraction of PAHs from solid wastes. This Application Note updates the work that was done in Thermo Scientific Application Note 313 (AN 313) for the extraction of PAHs from environmental samples. A Thermo Scientific™ Dionex™ ASE™ 350 Accelerated Solvent Extractor system was used for the extraction and Thermo Scientific™ ISQ™ Single Quadrupole GC-MS system to analyze 16 PAHs from soil.