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The adsorption of PCBs to Yangtse River sediment |
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| Authors: | Huali Yuan Shifen Xu Yongrui Tan Xin Jiang Jianfang Feng Shuokui Han |
| Institution: | 1. State Key Laboratory of Pollution Control and Resources Reuse, Department of Environmental Science and Engineering , Nanjing University , Nanjing, 210093, P.R. China;2. Institute of Soil Science , Chinese Academy of Sciences , Nanjing, 210008, P.R. China |
| Abstract: | The adsorption of six PCB congeners to natural sediments from the Yangtse River was investigated. Experiments were conducted at different PCB concentrations to get the adsorption isotherm for each compound. Analytical determinations were carried out using gas chromato‐graphy with ECD detector. Results showed that the adsorption mechanism of PCBs on Yangtse River sediment fitted the best to the Langmuir adsorption model. It was also found that the adsorption rate decreased as the solubility increased or the octanol‐water partition coefficient decreased for each compound. |
| Keywords: | Adsorption the Yangtse River sediment PCBs GC‐ECD |