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基于渗透泵和液相微萃取的水体污染物时间序列浓度被动采样器的研制及初步应用

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基于渗透泵和液相微萃取的水体污染物时间序列浓度被动采样器的研制及初步应用 龚静 水环境污染物的时间序列数据是其时空分布、通量、迁移转化研究和环境风险评价的基础。样品采集是获取监测数据的重要步骤,但现有的采样技术难以用于获取时间序列监测数据。有鉴于此,本论文将渗透泵(osmoticpump,OP)和液相微萃取(liquidphasemicroextraction,LPME)相结合,研制了一种以OP为动力、以LPME为采样手段的新型被动采样器,并尝试将其应用于水体中污染物的时间序列浓度监测。主要的研究内容和结果如下: (1)将OP与LPME联用,研制了可获取水环境中污染物的时间序列浓度数据的OP-LPME采样器。该采样器包含6个部件,分别为1个OP、1个萃取溶剂储存盘管、1...; The studies of the spatial and temporal distribution, flux, transport, transformation, and environmental risk assessment of pollutants in aquatic environment depend mainly on the time-series monitoring data of the pollutants. Sample collection is the key step for environmental monitoring. However, it is difficult to obtained time-series data when the traditional sampling technique is applied. In t...

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