Multiple purge technique for determining organic pollutants in groundwater

The authors describe here a novel procedure for analyzing volatile organic pollutants by GC using the purge and trap method. The procedure involves a series of successive purges on a sample. The ratio of the area of a peak to its area on the previous purge, purge ratio (PR), can be used to confirm t...

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Veröffentlicht in:Bulletin of environmental contamination and toxicology 1982-07, Vol.29 (1), p.1-6
Hauptverfasser: Kozloski, R.P, Sawhney, B.L
Format: Artikel
Sprache:eng
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Zusammenfassung:The authors describe here a novel procedure for analyzing volatile organic pollutants by GC using the purge and trap method. The procedure involves a series of successive purges on a sample. The ratio of the area of a peak to its area on the previous purge, purge ratio (PR), can be used to confirm the identity of a peak by comparison to the PR of a standard. Furthermore, a constant PR of a series of purges can be used to demonstrate the absence of underlying peaks. Successive peaks can also reveal the correct retention time of a less volatile component whose peak was merged with a more volatile component. Using this multiple purge method the authors have analyzed a number of groundwater samples from landfill sites.
ISSN:0007-4861
1432-0800
DOI:10.1007/BF01606080