Liste Hans-Holger, Alexander Martin
Department of Crop and Soil Sciences, Institute for Comparative and Environmental Toxicology, Cornell University, Ithaca, NY 14853, USA.
Chemosphere. 2002 Feb;46(7):1011-7. doi: 10.1016/s0045-6535(01)00165-5.
The feasibility of a mild-solvent extraction procedure to predict the bioavailability of individual polycyclic aromatic hydrocarbons (PAHs) in soil was assessed. The quantities that were degraded during the course of biodegradation of phenanthrene and pyrene in soil with or without plants correlated with the amounts extracted by n-butanol, with R2 values of 0.971 and 0.994, respectively. Six consecutive groups of earthworms removed ca. 70% of the pyrene remaining after extensive biodegradation, a value similar to the quantity extracted by n-butanol. The amount of chrysene aged in sterilized soil that was extracted by n-butanol was not statistically different from the quantities assimilated by earth-worms (Eisenia fetida) introduced into the soil. Such a mild extraction procedure may be useful as a means of predicting PAH bioavailability.
评估了一种温和溶剂萃取程序预测土壤中单个多环芳烃（PAH）生物有效性的可行性。在有植物或无植物的土壤中，菲和芘生物降解过程中降解的量与正丁醇萃取的量相关，R2值分别为0.971和0.994。连续六组蚯蚓去除了广泛生物降解后残留芘的约70%，该值与正丁醇萃取的量相似。正丁醇从灭菌土壤中萃取的老化苊的量与引入土壤中的蚯蚓（赤子爱胜蚓）同化的量无统计学差异。这种温和的萃取程序可能作为预测PAH生物有效性的一种手段。
