| 摘要 |
PROBLEM TO BE SOLVED: To provide a simple and precise method of measuring the amount of nonvolatile oil in soil, in order to grasp an oil pollution state of the soil and evaluate degrees of purification and modification of the soil. SOLUTION: In the method, a nonvolatile oil component extracted from the oil polluted soil is subjected to a multi-stage deployment of a thin-layer silica gel chromatography using n-hexane, toluene and dichloromethane/methanol as deployment solvents, and fractionated into a saturated fraction, an aromatic fraction, a resin fraction or an asphaltene fraction, and then a quantitative determination of the saturated fraction using aliphatic alkane of C14-C40 as a reference material and a quantitative determination of the aromatic fraction, the resin fraction or the asphaltene fraction using polycyclic aromatic hydrocarbon of C10-C20 as a reference material are carried out by using a hydrogen flame ionization detector, thereby enabling the nonvolatile oil component to be quantitatively determined simply and precisely. COPYRIGHT: (C)2010,JPO&INPIT |
