| 几种络合态铜对彩虹方头鱼的生物有效性 |
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| 引用本文： | 龙爱民,陶澍,潘波,刘国敬.几种络合态铜对彩虹方头鱼的生物有效性[J].环境化学,2001,20(4):320-325. |
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| 作者姓名： | 龙爱民 陶澍 潘波 刘国敬 |
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| 作者单位： | 北京大学城市与环境学系, |
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| 基金项目： | 国家杰出青年基金(49525102)，国际铜协会(TPT0604)资助 |
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| 摘 要： | 通过暴露实验和化学形态计算方法研究了彩虹方头鱼(Ｐａｒａｃｈｅｉｒｏｄｏｎｉｎｎｅｓｉ)对四种铜络合物的吸收．结果表明,络合态铜可被彩虹方头鱼吸收,但对络合态铜的吸收率显著低于对非络合态铜的吸收率,在其它形态铜含量基本恒定的条件下,铜吸收量随络合态铜含量的增加而呈线性增加趋势．不同络合态铜的有效性也有显著差别,条件稳定常数越高,则越不容易被吸收．由于铜暴露导致的粘液分泌量的变化从另一侧面证实了络合态铜的可吸收性．
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| 关 键 词： | 鱼 络合 铜 生物有效性 |
| 修稿时间： | 2000年8月7日 |
BIOAVILABILITY OF COPPER COMPLEXES TO NEON TETRAS |
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| Long Aimin Tao Shu Pan Bo Liu Guojing.BIOAVILABILITY OF COPPER COMPLEXES TO NEON TETRAS[J].Environmental Chemistry,2001,20(4):320-325. |
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| Authors: | Long Aimin Tao Shu Pan Bo Liu Guojing |
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| Abstract: | The copper uptake by neon tetras exposed to copper complexed with EDTA, diaminoethane, oxalic acid, and tartaric acid was investigated. It was demonstrated that at constant concentration of free copper, the amount of copper taken by the fish increased with the increase in concentration of the complexed copper, indicating that the copper complexes are available for fish uptake but at a relatively low speed. For the complexes studied, the lower the conditional stability constant showed the faster absorption of copper by fish. |
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| Keywords: | fish complex copper bioavailability |
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