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 language | American English |
|---|---|
| Journal | Combustion Science and Technology |
| Volume | 74 |
| Issue number | 1-6 |
| DOIs | |
| State | Published - 1990 |
| Externally published | Yes |
Keywords
- PAH
- contaminated soil
- gas chromatography
- mass spectrometry
- on-line vapor analysis
- thermal desorption
EGS Disciplines
- Chemical Engineering
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