PAH Residues in Soil from a Superfund Site

EPA Superfund sites were funded to reclaim dangerously toxic land by cleaning the soil and water of contaminants such as PAHs left behind by creosote wood treatment plants, industrial sludge lagoons, and oil and tar sources. The utility of the PDD is illustrated in this analysis of PAH residues in a soil sample from an actual Superfund site. The chromatogram also illustrates the ability of the PDD to handle complex matrices.

PAHs in soil from a superfund site

Courtesy of Ohio University, Dept. of Chemistry and Biochemistry, Hongyan Zhang and Anthony R. J. Andrews, Ph.D.

Run conditions
Sample EPA Superfund soil (1 g)
Sample volume 2 µl (solvent microextraction), 25:1 split
Injector temp 275°C
Detector mode Helium photoionization
Discharge gas Helium
Dopant gas None
Detector temp 300°C
Column RTX-35, 30 m x 0.25 mm x 0.25 µm
Column temp 200°C for 1 min, to 250°C at 45°C/min (1 min),
to 300°C at 45°C/min (11 min)
Attenuation 1