抄録
The aqueous-phase sorption of microorganic pollutants into liposomes and the effects of coexisting humic substances on the sorption were experimentally evaluated. The liposome, used for simulating a living cell membrane, was synthesized in the laboratory, and two PAHs (polycyclic aromatic hydrocarbons, i. e., pyrene and phenanthrene) were used as sorbates in this research. A new methodology for measuring the degree of PAHs sorption into the liposome was developed using the fluorescence enhancement phenomenon observed with the sorption. The batch sorption results indicate that the sorption into the liposome (i. e., liposome/water sorption coefficient (Klipw)) could be a better parameter for estimating the transport of microorganic pollutants into a living cell than the n-octanol/water partition coefficient (Kow), and humic substances suppress this transport by binding microorganic pollutants.
