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SUPERCRITICAL FLUID EXTRACTION OF SEMI-VOLATILE ORGANIC COMPOUNDS FROM PARTICLES
Citation:
Vallero, D A., J. L. Farnsworth, AND J. J. Peirce. SUPERCRITICAL FLUID EXTRACTION OF SEMI-VOLATILE ORGANIC COMPOUNDS FROM PARTICLES. Presented at PM 2000 AWMA Conference, Charleston, SC, January 24-28, 2000.
Description:
A nitrogen oxide flux chamber was modified to measure the flux of semi-volatile organic compounds (SVOCs). Part of the modification involved the development of methods to extract SVOCs from polyurethane foam (PUF), sand, and soil. Breakthroughs and extraction efficiencies were determined for PUF, and supercritical fluid extraction (SFE) conditions, including temperature, dynamic time and solvent modification, were optimized for porous media in the chamber. These conditions were applied to airborne particle matter to determine the effect of different particle size and composition on extraction efficiencies.
This work has been funded wholly by the United States Environmental Protection Agency. It has been subjected to Agency review and approved for publication. Mention of trade names or commercial products does not constitute endorsement or recommendation for use.