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)

计量
- 文章访问数: 783
- HTML全文浏览量: 16
- PDF下载量: 1241
- 被引次数: 0
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

HTML全文

参考文献(22)

van den BERG C M G, DONAT J R. Determination and data evaluation of copper complexation by organic ligands in sea water using cathodic stripping voltammetry at varying detection windows[J]. Analytica Chimica Acta, 1992, 257 (2): 281-291.

KOZELKA P B, BRULAND K W. Chemical speciation of dissolved Cu, Zn, Cd in Narragansett Bay, Rhode Island[J]. Mar Chem,1998, 60: 267-282.

BOYE M, van den BERG C M G, de JONG J T M, et al. Organic complexation of iron in the Southern Ocean[J]. Deep-Sea Research,2001, 48(6): 1477-1497.

张恩仁,张正斌,田玉红.南沙群岛海域海水中胶体铜、锌、铅[J].海洋学报.2003,25(2):136-140.

吕海燕,王正方,傅和芳,等.浙江西沪港重金属铜的配位容量和形态分析[J].海洋学报.2003,25(3):47-52

张正斌.南沙群岛海区化学过程研究[M].北京:科学出版社.1996.152.

BATLEY G E, FLORENCE T M. Determination of the chemical forms of dissolved cadmium, lead and copper in seawater[J]. Mar Chem, 1976, 4(4): 347-363.

国家海洋局.海洋调查规范[M].北京:海洋出版社,1991.766.

WANG J T. Determination of dissolved organic carbon in seawater using UV/Per-sulfate method and HTCO method[J]. Chin J Oceanol Limnol, 1997,15(1): 25-31.

陈春华.东海黑潮海域海水的表现络合容量[J].海洋通报,1993,12(3):37-43.

钱光,赵淑平,林建平.长江口及其邻近海域表层海水的表现络合容量[J].东海海洋,1986,3(4):10-17.

陈春华,余国辉.东海西北部海域表层海水表观铜络合容量的分布及影响因索的探讨[J].海洋环境科学,1994,13(1):27-31.

陈慈美,张路平,吴瑜端.厦门河口海湾水体中天然有机物——铜络合容量及对硅藻生长的效应[J].中国环境科学,1988,8(1):29-35.

陈春华.海口湾海域重金属自净能力研究[J].海洋学报.1997,19(5):69-75.

van den BERG C M G. Determination of copper complexation with natural organic ligands in seawater by equilibration with MnO2: Ⅱ.Experimental procedures and application to surface seawater[J]. Mar Chem, 1982, 11 (4): 323-342.

APTE S C, GARDNER M J, RAVENSCROFT J E, et al. An investigation of copper complexation in the severn estuary using differential pulse cathodic stripping voltammetry[J]. Mar Chem, 1990 29(1):63-75.

KRAMER C J M. Apparent copper complexation capacity and conditional stability constants in North Atlantic water[J]. Mar Chem,1986, 18(2-4) :335-349.

GARDNER M J, RAVENSCROFT J E. The range of copper-complexing ligands in the Tweed estuardy[J]. Chem Speciation Bioavail,1991, 3(1) :22-29.

LISS P S, DUCE R A. The Sea Surface and Globe Change[M]. Cambridge:Cambridge University Press, 1997. 519.

OSTERROTH C, KREMLING K, WENCK A. Small-scale variation of dissolved organic copper in Baltic waters[J]. Mar Chem, 1988,23(1-2): 153-165.

BUCKLEY P J M, van den BERG C M G. Copper complexation profiles in the Atlantic Ocean——a comparative study of electrochemistry and ion exchange technique[J]. Mar Chem, 1986, 19(3):281-296.

CARLSON D J. Viscosity of sea surface slicks[J]. Nature, 1987,329(29) :823-825.

施引文献

资源附件(0)

访问统计