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SELECTION AND EVALUATION OF SORBENT RESINS FOR THE COLLECTION OF ORGANIC COMPOUNDS
Citation:
Adams, J., K. Menzies, AND P. Levins. SELECTION AND EVALUATION OF SORBENT RESINS FOR THE COLLECTION OF ORGANIC COMPOUNDS. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/7-77/044 (NTIS PB268559), 1977.
Description:
The report gives results of an experimental program to characterize the behavior of resins which can be used in the sorbent trap module of a sampling train used for environmental assessment studies. Experimental design considerations were based on the sorbent canister in the new source assessment sampling system (SASS) train. Both XAD-2 and Tenax-GC resins were studied. Investigated compounds represented both a regular homologous series and compounds of direct interest to shipboard incineration studies. Two experimental approaches were used: a gas chromatography method using elution analysis to determine volumetric capacity (Vg) at low pollutant concentrations; and a steady state apparatus for frontal analysis to determine weight capacities of the resins. The studies showed that XAD-2 has a greater volumetric and weight capacity than Tenax-GC and is, therefore, preferred for use in the SASS train sorbent canister. A regular relationship was observed between the capacity of the resin and the volatility of the compounds studied. Under normal SASS train sampling conditions, materials such as POMs, PCBs, and Agent Orange would be completely retained by either the XAD-2 or Tenax-GC resin.