一种新的有机污染物C18 EmporeTM膜/水分配系数测定方法的探讨

本文采用C18Empore^TM膜替代正辛醇模拟生物体，建立了一套新的C18Empore^TM膜／水分配系数的测定方法，并从理论和实验两方面分析了C18Empore^TM膜／水分配 系数与正辛醇／水分配系数的异同点。实验结果表明，此法测定混合有机化合物的C18Empore^TM膜／水分配系数，可以取得较为满意的结果，这种新的有机污染物C18Empore^TM膜／水分配系数测定方法的建立，可为受污染可流中混合有机物生物富集因子（BCF）的预测和水环境纳污容量的评价提供技术支持，也为多经且分有机化合物定量结果－活性相关（QSARs）的研究和实际应用开辟广阔前景。

A NEW METHOD FOR DETERMINING THE C18 EMPORETMDISK/WATER PARTITION COEFFICIENTS OFORGANIC POLLUTANTS

A new method for determining the partition coefficient of organic pollutants using C18 solid phase embedded Empore?disk, which was used to substitute the octanol and to simulate the biotic body was reported. The difference and similarity between C18 EmporeTM /water partition coefficients and Kow were discussed basing on theories and experiments. Thus C18 Empore?water partition co-efficients of a large number of organic mixtures were determined, and satisfied results were gained. According to these results, it was expected to extend the method to predict bioconcentration factor (BCF) of mixed organic pollutants in rivers, and to estimate pollution load leve of water systems, as well as to develop the quantitative structure - activity relationships on multicomponent organic compounds.