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REPLACEMENT OF CHARCOAL IN VOST
Citation:
Johnson, L., R. Fuerst, A. Foster, AND J. Bursey. REPLACEMENT OF CHARCOAL IN VOST. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/A-93/171.
Description:
EPA Method 0030, the Volatile rganic ampling rain VOST), or sampling volatile organics from has proven to be a original performer as a sampling sorbent, partly due to inconsistency in analyte recovery. n addition, commercial availability of petroleum charcoal for VOST tubes has been variable. ack of data on comparability and variability of charcoals for VOST application has created uncertainty when other charcoals are substituted. Five potential sorbent replacements for charcoal in Method 0030 were evaluated along with a reference charcoal. wo of the sorbents tested, Ambersorb XE-340 and Tenax GR, did not perform well enough to qualify as replacements. hree candidates, Anasorb 747, sieve S-111 and Kureha Beaded Activated Charcoal, performed adequately, and produced statistically equivalent results. nasorb 747 appears to be an acceptable replacement for petroleum charcoal, based on a combination of performance, availability, and cost.