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초록

The extraction applicability of TPH and PCBs in soil was evaluated by the
pressurized solvent extraction(PFE) method. For this purpose, several experiments were
conducted using a temperature range of 50∼150℃ and three extraction solvents, namely
dichloromethane, hexane, and acetone/dichloromethane (1:1). The results showed that
extraction by the PFE method satisfied the target value for quality control as presented
in the standard test method for soil pollution in Korea. For TPH analysis,
dichloromethane was a better extraction solvent than the others, and the recovery rate of
TPH by dichloromethane increased with temperature. In the case of PCB, recovery rate
was more than 80% for all three solvents in the entire temperature range, and no
temperature dependence was shown. Also, we found that the two analytes were
extracted simultaneously by using dichloromethane as an extraction solvent. Consequently,
PFE the method