Extraction of PAHs from Urban Air Particulates Using Supercritical Fluids

SCF 509 Method Extraction of PAHs from Urban Dust Using Supercritical Fluids Place 1.0g of soil/sediment into a 5mL extraction vessel and add 1mL of tri-sil. Extract sample at specified conditions. Extraction Conditions Extraction vessel: Sample: Pressure: Temperature: CO2 Flow…

SCF 511 Extraction of PAHs from Soil Using Supercritical Fluids Introduction Supercritical CO2 alone easily dissolves polyaromatic hydrocarbons (PAHs) from spiked matrices, but not from weathered, aged samples. The addition of a small amount of co-solvent is necessary to displace…

SCF 502 Method The Extraction of PCBs from River Sediment Place 0.5g of soil/sediment into a 1mL extraction vessel and add 100µL of methanol. Extract sample at specified conditions. Extraction Conditions Extraction vessel: Sample: Pressure: Temperature: CO2 Flow Rate: Collection:…

SCF 522 Extraction of Irganox 1076 from Polystyrene Introduction Since the presence and amount of additives may affect a polymer’s performance, it is necessary to monitor additive concentrations for QC. Traditionally, additives are extracted from the polymer by methods that…