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Open Chemistry

formerly Central European Journal of Chemistry

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Volume 7, Issue 3


Volume 13 (2015)

Comparison of perchloroethylene extraction techniques in soil gas survey quantification

B. Zdravkov / M. Kubal / J. Janků
Published Online: 2009-06-21 | DOI: https://doi.org/10.2478/s11532-009-0028-9


Subsurface pollution by volatile organic compounds has emerged as a widespread problem in industrialized countries. This study compares static headspace technique and methanol extraction/purge-and-trap analysis followed by thermal desorption/gas chromatography in attempts for quantification of gas survey results in the determination of these chemicals in soil. Several soils were contaminated with aqueous solution of perchloroethylene (PCE) (140 mg L−1) using a vapor treatment method. Soil spiking took place up to 24 h in desiccator by exposing individual soil samples contained in open 40 mL glass vials to PCE evaporated from the solution. After exposure the samples were stored and analyzed within 2 days. The achieved results strongly suggest that gas extraction can provide quantitative results, regarding PCE concentration in soils, which are not significantly different from liquid based extraction analysis.

Keywords: Soil; PCE; VOCs; Extraction; Gas survey; Vapor contamination

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About the article

Published Online: 2009-06-21

Published in Print: 2009-09-01

Citation Information: Open Chemistry, Volume 7, Issue 3, Pages 274–280, ISSN (Online) 2391-5420, DOI: https://doi.org/10.2478/s11532-009-0028-9.

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© 2009 Versita Warsaw. This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License. BY-NC-ND 3.0

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