| 邻硝基苯酚在黄河沉积物和水相间的平衡分配 |
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| 引用本文： | 李改枝,刘颖,李景峰,郭博书.邻硝基苯酚在黄河沉积物和水相间的平衡分配[J].宁夏大学学报(自然科学版),2001,22(4):437-439. |
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| 作者姓名： | 李改枝 刘颖 李景峰 郭博书 |
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| 作者单位： | 内蒙古师范大学化学系,内蒙古,呼和浩特,010022 |
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| 基金项目： | 内蒙古自治区自然科学基金资助项目 (2 0 0 0 130 1) |
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| 摘 要： | 研究了邻硝基苯酚在黄河沉积物和水相间的分配行为，计算出中性分子和离子形态的分配系数Kd，Kdi以及总分配系数Kdo，结果表明，分配行为与体系的pH值有关，中性分子的分配系数Kd随pH增大而增大，中性分子和离子形态的总分配系数Kdo在pH大于6.12时减小，当pH大于5.08时，吸附态分数在0.85以上。
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| 关 键 词： | 邻硝基苯酚 黄河 沉积物 水 平衡分配 污染物 |
| 文章编号： | 0253-2328(2001)04-0437-03 |
| 修稿时间： | 2001年3月5日 |
Equilibrium partition behavior of o-nitrophenol between sediments and aqueous phase in the Yellow River |
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| LI Gai-zhi,LIU Ying,LI Jing-feng,GUO Bo-shu.Equilibrium partition behavior of o-nitrophenol between sediments and aqueous phase in the Yellow River[J].Journal of Ningxia University(Natural Science Edition),2001,22(4):437-439. |
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| Authors: | LI Gai-zhi LIU Ying LI Jing-feng GUO Bo-shu |
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| Abstract: | The equilibrium partition coefficients K d, K di and total partition coefficient K do of neutral molecule and charged ion of o-nitrophenol were calculated in the samples taken from the Yellow River. The results show that partitioning behavior relates with pH of the system. The partition coefficient K d of neutral molecule increases with system's pH increasing. The total partition coefficient K do of neutral molecule and charged ion decreases when system's pH is higher than 6.12, and the part of adsorption is more than 0.85 when system's pH is above 5.08. |
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| Keywords: | o-nitrophenol partition coefficient sediment the Yellow River |
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