METHOD FOR PRETREATING OILY SAMPLE CONTAINING POLYCHLORINATED BIPHENYLS

摘要

PPROBLEM TO BE SOLVED: To provide a pretreatment method capable of sufficiently removing an oily content by simple operation in a short time from an extract acquired, by extracting polychlorinated biphenyls (PCBs) from an oily sample. PSOLUTION: In the pretreatment method, the extract, acquired by extracting PCBs from the oily sample containing PCBs by a polar solvent, is passed through a water-based filter and preferably further brought into contact with an oleophilic adsorbent, to remove the oily content contained in the extract. PCBs are eluted to a volatile solvent from the extract, in which the oily content is removed in the pretreatment method. By introducing an acquired eluate to a gas chromatograph-mass spectrometer and quantifying PCBs, PCBs contained in the oily sample are determined. PCOPYRIGHT: (C)2005,JPO&NCIPI