中国近岸部分海域海水中金属络合配位体浓度的研究

刘春颖; 张正斌; 张安慧; 郭博书; 宫海东; 刘莲生

中国近岸部分海域海水中金属络合配位体浓度的研究

中国海洋大学, 化学化工学院, 海洋化学研究所, 山东, 青岛, 266003

基金项目: “九五”国家攻关项目子课题(97-926-04-03);国家自然科学基金项目(40076020;40376022);高等学校博士点基金(20030423007);中国科学院特别支持项目(KZ95T-04-04-04)

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出版历程
- 收稿日期: 2003-11-24
- 修回日期: 2004-10-22

Study on metal complexing ligands concentrations in several waters of China coast

Institute of Marine Chemistry College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao 266003, China

摘要

摘要: 采用阳极溶出伏安法对黄河口、青岛近海、大亚湾和南海海域海水中的金属络合配位体的浓度进行了测定,同时探讨了其分布规律与相关参量的关系.结果发现:南海海域海水中的金属络合配体的浓度稍高于其他3个海域,且都明显高于大洋水的浓度;在微表层存在富集现象;在垂直分布上表层最大,然后随深度增加而降低,在底层有较大值;各海域配位体的性质呈复杂性;铜的络合配位体浓度大于镉和铅;总的来说与世界其他海域的分布规律是一致的.同时发现铜络合配位体浓度与BOD(生化需氧量)、COD(化学需氧量)、DOC(溶解有机碳)及黏度存在显著的正相关性.
- 金属络合配位体浓度 /
- 中国近岸海水 /
- 分布规律 /
- 相关性
Abstract: Metal co mplexing ligands concent rations of the Huanghe Estuary,Qingdao coastal,Daya Bay and South Sea China waters were determined by the anodic stripping voltammetry(ASV)technique.The distribution regularity and the relationship with other parameters were discussed.The results ae as follows:Metal ligands concentrations of the South China sea waters are a little higher than those of other waters,and they are apparently higher than those of the ocean.Metal complexing ligands concentration shows the enrichment phenomenon in the sea surface microlayer.The metal complexing ligands concent ration profiles of the South China Sea show that the value of sea surface is the highest,then decreases with the depth accrueing,and a higher value appears at the bottom.Ligands concentrations of copper are higher than those of cadmium and lead.The property of ligands in each waters exhibits complicated.In short,the distribution regularity of metal complexing ligands concentration in China coastal waters is consistent with that of other regions in the world.Meanwhile,the positive relationship between copper ligands concent ration and BOD,COD,DOC and the viscosity are found obviously.
- metal complexing ligands concentrations /
- China coastal waters /
- distribution regularity /
- relationship

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