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Fast, Repetitive GC/MS Analysis of Thermally Desorbed Polycyclic Aromatic Hydrocarbons (PAHs) from Contaminated Soils

  • William H. McClennen
  • , Neil S. Arnold
  • , Kenneth A. Roberts
  • , Henk L.C. Meuzelaar
  • , JoAnn S. Lighty
  • , Eric R. Lindgren
  • University of Utah

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

A syslem for on-line  analysis of  organic vapors by short column gas chromatography/mass spectrometry ( GC / MS ) has been used to monitor products from a  thermal  soil  desorption  reactor. The system consists of a unique air sampling inlet with a 1 meter long capillary column coupled directly to a modified Ion Trap Mass Spectrometer (Finnigan MAT) with demonstrated detection limits for alkylbcn-zencs in the low ppb range. In this work the mobile instrument is used for  repetitive   GC / MS and GC / MS<sup> n</sup> (tandem  MS )  analysis  at 30 to 60s intervals of PAH products from coal tar  contaminated  soils in a bed characterization reactor. Results for naphthalene through dibenzanthracenes arc compared to conventional. more detailed  GC / MS   analyses of extracts from soil before and after thermal  treatment.
Original languageAmerican English
JournalCombustion Science and Technology
Volume74
Issue number1-6
DOIs
StatePublished - 1990
Externally publishedYes

Keywords

  • PAH
  • contaminated soil
  • gas chromatography
  • mass spectrometry
  • on-line vapor analysis
  • thermal desorption

EGS Disciplines

  • Chemical Engineering

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