Abstract
It has been known for several decades that trace metals can become complexed by organic matter in natural waters. Only relatively recently has it become known that some interesting metals such as copper, zinc, iron, nickel, cobalt and probably more, participate in these reactions. This complexation changes the geochemistry of the metals by preventing them from being scavenged and thus increases their residence time in estuaries and the upper water column. The complexation also changes the availability to organisms (algae, mollusks or fish). It is therefore important to determine the chemical speciation of metals in addition to their dissolved concen tration in sea water. The organic complexation has been determined in the past by several methods, including fluorescence quenching (Berger et al. 1984), solubility increases (Campbell et al. 1977), anodic stripping voltammetry (Chau et al. 1974), competitive adsorption on MnO2 (van den Berg and Kramer 1979) and preconcentra tion on C18 cartridges (Mills and Quinn 1981). The most important methods to determine the chemical speciation of metals in the marine system now use voltammetry with and without ligand competition. These methods will be explained in this chapter.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Batley GE, Florence TM (1976) Determination of the chemical forms of dissolved cadmium, lead and copper in seawater. Mar Chem 4:347–363
Berger P, Ewald M, Liu D, Weber JH (1984) Application of the fluorescence quenching titration method to the complexation of copper(II) in the Gironde estuary (France). Mar Chem 14:289–295
Buckley PJM,van den Berg CMG (1986) Copper complexation profiles in the Atlantic Ocean. Mar Chem 19: 281–296
Campbell PGC, Bisson M, Gagne R, Tessier A (1977) Critical evaluation of the copper ( II) solubilization method for the determination of the complexation capacity of natural waters. Anal Chem 49: 2358–2363
Campos MLAM, van den Berg CMG (1994) Determination of copper complexation in sea water by cathodic stripping voltammetry and ligand competition with salicylaldoxime. Anal Chim Acta 284:481-496
Chau YK, Gachter R, Lum-Shue-Chan K (1974) Determination of the apparent complexing capacity of lake waters. J Fish Res B Canada 31: 1515–1519
Coale KH, Bruland KW (1988) Copper complexation in the Northeast Pacific. Limnol Oceanogr 33; 1084–1101
Coale KH, Bruland KW (199o) Spatial and temporal variability in copper complexation in the North Pacific. Deep-Sea Res 47: 317–336
Harwood-Sears V, Gordon AS (1990) Copper-induced production of copper-binding supernatant proteins by the marine bacterium Vibrio alginolyticus. Appl Environ Microbiol 56: 1327–1332
Kramer CJM (1986) Apparent copper complexation capacity and conditional stability constants in North Atlantic waters. Mar Chem 18:335–349
Leal MFC,Vasconcelos MTSD, van den Berg CMG (1999) Copper induced release of complexing ligands similar to thiols by Emiliania huxleyi in seawater cultures. Limnol Oceanogr, in proof
Mills GL, Quinn JG (1981) Isolation of dissolved organic matter and copper-organic complexes from estuarine waters using reverse-phase liquid chromatography. Mar Chem 10: 93–102
Moffett JW, Zika RG (1987) Solvent extraction of copper acetylacetonate in studies of copper(II) speciation in seawater. Mar Chem 21: 301–313
Ostapczuk P, Valenta P, Nürnberg HW (1986) Square wave voltammetry - a rapid and reliable determination method of Zn, Cd, Pb, Cu, Ni and Co in biological and environmental samples. J Electroanal Chem 214: 51–64
Raspor B, Nurnberg HW, Valenta P, Branica M (1980) The chelation of lead by organic ligands in sea water. In: Branica M, Konrad Z (eds) Lead in the marine environment. Pergamon Press, Oxford, pp 181–195
Rue EL, Bruland KW (1995) Complexation of iron(III) by natural organic ligands in the Central North Pacific as determined by a new competitive ligand equilibration/adsorptive cathodic stripping voltammetric method. Mar Chem 50: 117–138
Ruzic I. (1982) Theoretical aspects of the direct titration of natural waters and its information yield for trace metal speciation. Anal Chim Acta 140: 99–113
Shuman MS, Michael LC (1978) application of the rotating disk electrode to measurement of copper complex dissociation rate constants in marine coastal samples. Env Sci Technol 12: 1069–1072
Sueur S, van den Berg CMG, Riley JP (1982) Measurement of the metal complexing ability of exudates of marine macroalgae. Limnol Oceanogr 27:536–543
van den Berg CMG (1982) Determination of copper complexation with natural organic ligands in seawater by equilibration with Mn02. I. Theory. Mar Chem 11: 307–322
van den Berg CMG (1984a) Determination of the complexing capacity and conditional stability constants of complexes of copper(II) with natural organic ligands in seawater by cathodic stripping voltammetry of copper-catechol complex ions. Mar Chem 15: 1–18
van den Berg CMG (1984b) Direct determination of sub-nanomolar levels of zinc in seawater by cathodic stripping voltammetry. Talanta 31: 1069–1073
van den Berg CMG (1985) Determination of the zinc complexing capacity in seawater by cathodic stripping voltammetry of zinc-APDC complex ions. Mar Chem 16: 121–130
van den Berg CMG (1986) Determination of copper, cadmium and lead in seawater by cathodic stripping voltammetry of complexes with 8-hydroxyquinoline. J Electroanal Chem 215: 111–121
van den Berg CMG (1991) Potentials and potentialities of cathodic stripping voltammetry of trace elements in natural waters. Anal Chim Acta 250: 165–276
van den Berg CMG (1995) Evidence for organic complexation of iron in seawater. Mar Chem 50: 139–157
van den Berg CMG, Donat JR (1992) Determination and data evaluation of copper complexation by organic ligands in sea water using cathodic stripping voltammetry at varying detection windows. Anal Chim Acta 257: 281–291
van den Berg CMG, Kramer JR (1979) Determination of complexing capacities and conditional stability constants for copper in natural waters using Mn02. Anal Chim Acta 106: 113–120
van den Berg CMG, Nimmo M, Daly P, Turner DR (1990) Effects of the detection window on the de- termination of organic copper speciation in estuarine waters. Anal Chim Acta 232: 149–159
Vega M, van den Berg CMG (1997) Determination of cobalt in sea water by catalytic cathodic stripping voltammetry. Anal Chem 69: 874–881
Yokoi K, van den Berg CMG (1992) The determination of iron in seawater using catalytic cathodic stripping voltammetry. Electroanalysis 4: 65–69
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2000 Springer-Verlag Berlin Heidelberg
About this chapter
Cite this chapter
van den Berg, C.M.G. (2000). Determination of Organic Complexation. In: Gianguzza, A., Pelizetti, E., Sammartano, S. (eds) Chemical Processes in Marine Environments. Environmental Science. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04207-6_9
Download citation
DOI: https://doi.org/10.1007/978-3-662-04207-6_9
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-08589-5
Online ISBN: 978-3-662-04207-6
eBook Packages: Springer Book Archive