| Measurement of Labile Cu, Pb and Their Complexation Capacity in Yueqing Bay in Zhejiang Province, China |
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| 作者姓名： | 王正方 吕海燕 傅和芳 |
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| 作者单位： | Second Institue of Oceanography，State Oceanography Administration，Second Institue of Oceanography，State Oceanography Administration，Second Institue of Oceanography，State Oceanography Administration Hangzhou 310012，China，Hangzhou 310012，China，Hangzhou 310012，China |
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| 基金项目： | ProjectNo .40 0 760 2 5supportedbytheNSFC . |
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| 摘 要： | 1 INTRODUCTIONRecently ,thepollutionoftracemetalinseawaterhasbecomeincreasinglyevident.Researchershavefo cusedattentiontotracemetalpresentinvariousexistenceforms ,especiallyorganiccomplexingphases.Theexistencestatesandtransportmechanismofbaytracemetalswerethesubjectofstudybysomere searchers(Gu ,1 991 ;Florence ,1 998;Guo ,1 998;Wells,1 991 ,1 998a ,b ;Wellsetal.,1 998) .Whetherinfreshwaterorseawater,colloidsareclearlydominantfactorsaffectingtheexistencestatesandtransportmechanismoftrac…
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| 关 键 词： | 测量 铜 铅 络合 |
| 收稿时间： | 17 September 2002 |
| 修稿时间： | 9 July 2003 |
Measurement of labile Cu,Pb and their complexation capacity in Yueqing Bay in Zhejiang Province,China |
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| Wang?Zhengfang,Lu?Haiyan,Fu?Hefang.Measurement of Labile Cu, Pb and Their Complexation Capacity in Yueqing Bay in Zhejiang Province, China[J].Chinese Journal of Oceanology and Limnology,2004,22(1):64-69. |
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| Authors: | Wang Zhengfang Lu Haiyan Fu Hefang |
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| Institution: | (1) Second Institue of Oceanography, State Oceanography Administration, 310012 Hangzhou, China |
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| Abstract: | The complexation capacity of Cu and Pb and their labile and organic contents were determined separately for surface seawater
samples from Yueqing Bay. The samples were prepared using Nuclepore filtration method yielding <1.0 μ, <0.4μm and <0.2μm particulate
water samples. Our data indicated that the <0.2μm colloidal fraction is a major carrier for distribution of copper in seawater.
Affinity of Cu to marine microparticles plays an important role in the process. Pb however, tends to be absorbed by >0.2μm
particles. The complexation capacity of Pb with <0.2μm particulates was smaller than that with 0.2–1.0μm particulates, and
averaged 11.5 and 23.0nmol/L respectively. The results suggested that colloidal particles were responsible for the distribution
and concentration of Pb in seawater.
Project No. 40076025 supported by the NSFC. |
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| Keywords: | colloidal particles labile state complexation capacity trace metals Yueqing Bay |
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