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View Actual EPA Method 8275A (PDF File)
EPA Method 8275A:SEMIVOLATILE ORGANIC COMPOUNDS (PAHs AND PCBs) IN SOILS/SLUDGES AND SOLID WASTES USING THERMAL EXTRACTION/GAS CHROMATOGRAPHY/MASS SPECTROMETRY (TE/GC/MS)
Summary:A portion of sample (0.003-0.250 g, depending on the expected concentration) is weighed into a sample crucible. The crucible is placed in a thermal extraction chamber and then heated to 340EC where it is held for 3 minutes. Thermally-extracted compounds are swept into a GC equipped with a split/splitless injection port (split ratio set at ~35:1 for a low concentration sample or ~400:1 for a high concentration sample) and then concentrated on the head of GC column. Thermal desorption lasts 13 minutes. The temperature program of the GC oven is adjusted to the specific temperature conditions required to elute the target analytes. The target analytes are swept into a mass spectrometer for qualitative and quantitative determination.
Scope:Method 8275 is a thermal extraction capillary GC/MS procedure for the rapid quantitative determination of targeted PCBs and PAHs in soils, sludges and solid wastes.
Report Number:SW-846 Ch 4.3.2