Comparison of perchloroethylene extraction techniques in soil gas survey quantification

• Authors: B. Zdravkov , M. Kubal , J. Janků
• Languages of publication: EN

Abstracts

EN

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

EN

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

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2009
• Volume: 7
• Issue: 3
• Pages: 274-280

Dates

published

1 - 9 - 2009

online

21 - 6 - 2009

Contributors

author

B. Zdravkov

• Department of Environmental Chemistry, Institute of Chemical Technology Prague, 166 28, Prague 6, Czech Republic

author

M. Kubal

• Department of Environmental Chemistry, Institute of Chemical Technology Prague, 166 28, Prague 6, Czech Republic

author

J. Janků

• Department of Environmental Chemistry, Institute of Chemical Technology Prague, 166 28, Prague 6, Czech Republic

References

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Identifiers

DOI

10.2478/s11532-009-0028-9