The apparent copper complexing capacity of seawater and the interaction of copper with humic matter[J]. 海洋湖沼学报(英文), 1985,3(2):224-234.
Mingyi, S. The apparent copper complexing capacity of seawater and the interaction of copper with humic matter., Chin. J. Ocean. Limnol. 3, 224–234 (1985). https://doi.org/10.1007/BF02906797
The apparent copper complexing capacity of seawater and the interaction of copper with humic matter[J]. 海洋湖沼学报(英文), 1985,3(2):224-234. DOI: 10.1007/BF02906797.
Mingyi, S. The apparent copper complexing capacity of seawater and the interaction of copper with humic matter., Chin. J. Ocean. Limnol. 3, 224–234 (1985). https://doi.org/10.1007/BF02906797DOI:
The apparent copper complexing capacity of seawater and the interaction of copper with humic matter
摘要
Abstract
The anodic stripping voltammetry with physically-coating mercury film electrode was used to investigate the complexing action of trace heavy metals in seawater with organic ligands. The apparent copper complexing capacity of seawater was determined by titrating the organic ligands in natural seawater with standard ionic copper solution. The complexing actions of copper in seawater with humic acid (HA) or fulvic acid (FA) were investigated by titrating copper in seawater with HA or FA solution. The equilibrium time
electrodeposition potential
and effect of pH etc. were investigated respectively. The results show that the interaction of copper in seawater with organic matter is a fast process. At natural pH
HA or FA tend to act with copper in seawater to form nonlabile complexes. During experimental electrode process
these complexes did not significantly dissociate. The experimental results were calculated according to 1∶1 complex formation.
关键词
Keywords
references
Barcndrecht, E., 1967. Electroanalytical Chemistry. Edited by A. J. Bard, Marcel Dekker, New York.2: pp. 53–109.
Chau, Y. K., R. Gächter and K. Lum-Shue-Chan, 1974. Determination of the apparent complexing capacity of lake waters.J. Fish. Res. Board Can. 31: 1515–1519.
Davis, J. A. and J. O. Leckie, 1978. Effect of adsorbed complexing ligands on trace metal uptake by hydrous oxides.Environ. Sci. Technol. 12: 1309–1315.
Heyrovsky, J. and J. Kuta, 1965. Principles of Polarography. Academic Press, New York, p. 147.
Lazar, B., A. Katz and S. Ben-Yaakov, 1981. Copper complexing capacity of seawater; a critical appraisal of the direct ASV method.Mar. Chem. 10: 221–231.
Plavsic, M., D. Krznaric and M. Branica, 1982. Determination of the apparent copper complexing capacity of seawater by anodic stripping voltammetry.Mar. Chem. 11: 17–31.
Reuter, J. H. and E. M. Perdue, 1977. Importance of heavy metal—organic matter interactions in natural waters.Geochim. Cosmochim. Acta. 41: 325–334.
Shuman, M. S. and G. P. Woodward, Jr., 1977. Stability constants of copper—organic chelates in aquatic samples.Environ, Sci. Technol. 11: 809–813.
Shuman, M. S. and J. L. Cromer, 1979. Copper association with aquatic fulvic and humic acids. Estimation of conditional formation constants with a titrimetric anodic stripping voltammetry procedure.Environ. Sci. Technol. 13:543–545.
Steemann, N. E. and S. Wium-Andersen, 1970. Copper ions as poison in the sea and in frash water.Mar. Biol. 6: 93–97.
Van der Berg, C. M. G., 1982. Determination of copper complexation with natural organic ligands in seawater by equilibration with MnOa. I.Theor. Mar. Chem. 11: 307–322.
The trial reading is over, you can activate your VIP account to continue reading.