The analysis of contaminated soil and sludge samples for semi-volatile organic compounds (SVOC) has traditionally been performed using gas chromatography/mass spectrometry (GC/MS) (EPA SW-846, Method 8270). This method relies on the extraction of contaminants from the samples utilizing a variety of organic and chlorinated solvents. Pressurized fluid extraction (EPA SW-846, Method 3545) has been shown to efficiently extract SVOC contaminants from soil using methylene chloride as the extraction solvent. This technique minimizes the use of organic solvents but still requires a lengthy evaporation step. The major areas of concern regarding traditional extraction techniques are: 1.) laboratory contamination resulting from the presence of organic solvents; 2.) health and environ
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