柱层析净化沉积物中多环芳烃的研究

method for purgation of polycyclic aromatic hydrocarbons in marine sediments by colum chromatography had been established. By changing different kinds of eluted reagent , the volume of eluted reagent and the kinds of sorbent, the optimal conditions under the pre-treatment of polycyclic aromatic hydrocarbons in the samples of sediments can be used for detection analysis. The optimized condition of separating for sixteen kinds of PAHs adsorbed in glass column filled in 2g of silica gel on superstratum and 3g of alumina on underlayer with eluting of 15 mL hexane and 35 mL mix solution of hexane and dichloromethane and (1：1, v/v) in turn could be obtained in the recoveries of PAHs ranged from 67.4% to 89.8%.