| 摘要: |
| 据文献报道，海水中若干微量金属离子的浓度，远低于饱和含量。并认为，对于Zn、Pb、Cu、Cd等许多元素来说，吸附可能是个控制浓度的因素。硫化物沉淀也可能出现，但可能不是浓度的控制因素。
本文用可靠的极谱法，对海水中Zn++、Pb++，Cu++、Cd++的饱和含量进行了研究，并与作者的单池示差反向极谱法现场海水测定数据作比较；进行了Zn++、Cu++的吸附试验；探讨了海水中微量金属离子与环境间可能存在的平衡过程。从而，探明了海水中微量金属元素的离子浓度(包括不稳定络合物)及其控制因素。 |
| 关键词: 微量金属离子 浓度 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第401号；国家海洋局第三研究所 |
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| ON THE CONCENTRATIONS OF IONS OF TRACE METALS IN SEA WATER |
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Gu Hongkan,Liu Mingxing,Zhang Xingjun,Bao Wanyou,Guo Ruxin,Wang Qi,Zeng Zhaowen
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Institute of Oceanology, Academia Sinica
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| Abstract: |
| The degree of unsaturation of several ions (include unstable complex) of trace metals in sea water and its control factor are studied. It is concluded that the ions are unsaturated in sea water and are at thermodynamic unstable state (nonequilibrium concentration and nonequilibrium state). The control factor is that the continent (natural processes) not to supply the sea water with sufficient ion content (no suspended matter) which reach the saturation. Chemical, biological and physical processes affect the ion content wíth a degree. |
| Key words: ions of trace metals concentration |
