期刊
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
卷 23, 期 16, 页码 16096-16103出版社
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-016-6791-1
关键词
POCIS; Sampling rate; Perfluorinated chemical; Dissolved organic matter
资金
- National Natural Science Foundation of China [51479067, 51209068]
A modified polar organic chemical integrative sampler (POCIS) could provide a convenient way of monitoring perfluorinated chemicals (PFCs) in water. In the present study, the modified POCIS was calibrated to monitor PFCs. The effects of water temperature, pH, and dissolved organic matter (DOM) on the sampling rate (R (s)) of PFCs were evaluated with a static renewal system. During laboratory validation over a 14-day period, the uptake kinetics of PFCs was linear with the POCIS. DOM and water temperature slightly influenced POCIS uptake rates, which is in consistent with the theory for uptake into POCIS. Therefore, within a narrow span of DOM and water temperatures, it was unnecessary to adjust the R (s) value for POCIS. Laboratory experiments were conducted with water over pH ranges of 3, 7, and 9. The R (s) values declined significantly with pH increase for PFCs. Although pH affected the uptake of PFCs, the effect was less than twofold. Application of the R (s) value to analyze PFCs with POCIS deployed in the field provided similar concentrations obtained from grab samples.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据