air sampling cartridge services

Semi-volatile organic compounds (SVOC) cannot be collected in a SUMMA canister because their vapor pressure is low and they attach themselves to the canister surfaces by a undefined mechanism. SVOC's in ambient and indoor air samples are collected on a sorbent cartridge made of polyethylene foam (PUF) or a combination of PUF and XAD-2 resin. 

By Environmental Analytical Service based in San Luis Obispo, CALIFORNIA (USA). from Services - Summary Service line

Special techniques are used to analyze SVOCs. Because of their low vapor pressures, SVOCs tend to condense on surfaces and only very low concentrations are measured in air. Consequently, standard environmental chamber techniques used for VOCs are unreliable for determining the emissions of SVOCs from products because these compounds stick to ...

By Berkeley Analytical Associates, LLC based in Richmond, CALIFORNIA (USA).