| Determination of copper complexation in surface microlayer of Daya Bay and Jiaozhou Bay |
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| 作者姓名： | 张正斌 刘春颖 于志刚 刘莲生 王肇鼎 宫海东 |
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| 作者单位： | Institute of Marine Chemistry，Ocean University of Qingdao，Qingdao 266003，China，Institute of Marine Chemistry，Ocean University of Qingdao，Qingdao 266003，China，Institute of Marine Chemistry，Ocean University of Qingdao，Qingdao 266003，China，Institute of Marine Chemistry，Ocean University of Qingdao，Qingdao 266003，China，South China Sea Institute of Oceanology，Chinese Academy Sciences，Guangzhou 510301，China，Institute of Marine Chemistry，Ocean University of Qingdao，Qingdao 266003，China |
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| 基金项目： | Supported by subproject of the China’s “Ninth Five Year Plan” Scientific Research Project No. 97-926-04-03，the Natural Science Foundation of China (No. 40076020, 40376022)，the Doctoral Research Program of Higher Education (No. 98042304) and KZ95T-04-04-04 Fund. |
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| 摘 要： | 1 INTRODUCTION Bioavailability to the biota and the biogeo-chemistry of trace metals in marine environment areaffected by their chemical speciation in the naturalsystem (Bruland et al., 1991; Van den Berg andDonat, 1992; Wells et al., 1998). Therefore, thesetwo parameters, the ligands concentrations andconditional stability constants, are important todetermine the complexing capacity. Sea surface microlayer (SML), the thin interfa-cial boundary between ocean and atmosphere, playsan imp…
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| 关 键 词： | 海平面微层 铜复化配合基 胶州湾 大亚湾 元素富集 |
| 收稿时间： | 27 October 2003 |
| 修稿时间： | 27 September 2004 |
Determination of copper complexation in surface microlayer of Daya Bay and Jiaozhou Bay |
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| Zhang Zhengbin,Liu Chunying,Yu Zhigang,Liu Liansheng,Wang Zhaoding,Gong Haidong.Determination of copper complexation in surface microlayer of Daya Bay and Jiaozhou Bay[J].Chinese Journal of Oceanology and Limnology,2005,23(2):238-245. |
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| Authors: | Zhang Zhengbin Liu Chunying Yu Zhigang Liu Liansheng Wang Zhaoding Gong Haidong |
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| Institution: | (1) Institute of Marine Chemistry, Ocean University of Qingdao, 266003 Qingdao, China;(2) South China Sea Institute of Oceanology, Chinese Academy Sciences, 510301 Guangzhou, China |
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| Abstract: | Copper complexing ligands concentration (C C) and conditional stability constant of the sea surface microlayer (SML) and subsurface layer (SSL) samples, collected from
Baya Bay of Guangdong Province and Jiaozhou Bay of Shandong Province, were determined by anodic stripping voltammetry (ASV)
technique. C C of Daya Bay in the SML ranged from 6.19×10−7 to 3.52×10−7 mol/L.C C of Jiaozhou Bay in the SML ranged from 5.30×10−7 to 3.03×10−7 mol/L in August 1998 and from 3.46×10−7 to 1.36×10−7 mol/L in May 2000. TheC C concentrations were higher in all surface microlayer samples, compared with corresponding subsurface samples. The average
enrichment factors of copper complexation in the SML observed above were 1.58, 1.41 and 1.56, respectively. The enrichment
ofC C concentration in the microlayer demonstrated that organic ligands had certain buffer action on the toxicity of the enriched
trace metals in the same layer. Conditional stability constants of the SML in Jiaozhou Bay were lower than those of the SSL;
however, it showed just opposite for Daya Bay.BOD (biological oxygen demand) andCOD (chemical oxygen demand) indicated the organic matter content, also showed enriched in the SML.C C had an obvious relationship withBOD orCOD.
Supported by subproject of the China’s “Ninth Five Year Plan” Scientific Research Project No. 97-926-04-03; the Natural Science
Foundation of China (No. 40076020, 40376022); the Doctoral Research Program of Higher Education (No. 98042304) and KZ95T-04-04-04
Fund. |
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| Keywords: | the sea surface microlayer (SML) copper complexing ligands concentration (C C) enrichment correlation Daya Bay Jiaozhou Bay |
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