期刊
ESTUARINE COASTAL AND SHELF SCIENCE
卷 80, 期 4, 页码 538-544出版社
ACADEMIC PRESS LTD ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ecss.2008.09.010
关键词
trace metals; colloids; estuarine waters; frontal ultrafiltration; stripping chronopotentiometry
The frontal cascade ultrafiltration (UF) technique in conjunction with stripping chronopotentiometry (SCP) has been evaluated for determining the colloidal distribution of Cu, Pb and Cd in estuarine waters. Metallic concentrations in seven size fractions (0.45 mu m-0.22 mu m; 0.22 mu m-300 kDa; 300-50 kDa; 50-30 kDa; 30-10 kDa; 10-5 kDa; <5 kDa) were determined with the aim to investigate their changes along the salinity gradient of the Penz system (NW France). These data, completed by analysis of the total dissolved metals at 10 stations over the whole freshwater-seawater mixing zone, provided some insights in the removal and addition processes that affect Cu, Pb and Cd in estuaries. (C) 2008 Elsevier Ltd. All rights reserved.
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