利用Triolein半渗透膜采样技术测定洋河水中的优先污染物

Application of Triolein SPMD to Monitor Prior Pollutants in the Yanghe River

应用Ｔｒｉｏｌｅｉｎ半渗透膜采样器采集了河北洋河宣化至官厅水库河段水样，根据测定采样器中多氯联苯污染物（ＰＣＢｓ）及其它优先污染物浓度，可以估算这些污染物在河段水体中的平均浓度。将结果与同时同地采集的水样，经萃取浓缩后分析得到的结果比较，发现对于不同类型污染物，二者符合程度不同。本研究证明半渗透膜被动采样技术可用于水中多氯联苯等难降解污染物的定量监测。

Semipermeable membrane devices (SPMDs) were used to monitor prior pollutants including PCBs,PAHs,pesticides et al.in the Yanghe River,where organic pollutants are considered to be the major concern.Concentrations of pollutants in water were estimated based on the concentrations in SPMDs by either sampling rates (R S) or partitioning coefficients (K L W ),and were compared with concentrations determined by extraction of water samples with dichloromethane.The results show that SPMDs are specially suitable to monitor persistent hydrophobic pollutants in river waters,such as PCBs and PAHs.