Journal ArticleDOI
Voltammetric study of humic and fulvic substances
TLDR
A detailed qualitative investigation of the behavior of lead complexes with fulvic substances has been carried out using several polarographic techniques, e.g. d.c. polarography, normal and differential pulse polarography and cyclic voltammetry.About:
This article is published in Journal of Electroanalytical Chemistry.The article was published on 1979-08-10. It has received 88 citations till now. The article focuses on the topics: Polarography & Cyclic voltammetry.read more
Citations
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Journal ArticleDOI
Diffusional characteristics of hydrogels used in DGT and DET techniques
Hao Zhang,William Davison +1 more
TL;DR: In this paper, the diffusion coefficients of trace metals and fulvic and humic substances in five different hydrogels were measured and the results were consistent with the known open structures of AGE and APA gels and the dependence of the structure of BPA gels on monomer concentration.
Journal ArticleDOI
Determination of copper complexation with natural organic ligands in seawater by equilibration with MnO2 II. Experimental procedures and application to surface seawater
TL;DR: In this article, the MnO 2 adsorption method combined with voltammetry is proposed for the direct determination of metal complexation in seawater of various salinities as a more satisfactory alternative to direct voltammetric measurements and bioassay methods.
Journal ArticleDOI
Diffusion Coefficients and Polydispersities of the Suwannee River Fulvic Acid: Comparison of Fluorescence Correlation Spectroscopy, Pulsed-Field Gradient Nuclear Magnetic Resonance, and Flow Field-Flow Fractionation
Jamie R. Lead,Kevin J. Wilkinson,Eric Balnois,Benjamin J. Cutak,Cynthia K. Larive,Shoeleh Assemi,Ronald Beckett +6 more
TL;DR: In this article, the Suwannee River fulvic acid (SRFA) was compared as a function of pH (4.0−8.5) and ionic strength (5−500 mM) and the results imply that the majority of SRFA components have hydrodynamic diameters between 1.5 and 2.5 nm.
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Trace metal complexing capacity of natural waters: A review
TL;DR: The theoretical basis of trace metal complexing capacity of natural waters and analytical methods used to measure it are reviewed in this paper, in an attempt to draw out the most important features relating to the validity of the methods used and the nature of the metal binding ligands and complexes formed.
References
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Journal ArticleDOI
The complexation of metals with humic materials in natural waters
TL;DR: In this paper, the authors used the HALTAFALL program of Ingri et al. (1967) to compute speciation models for freshwaters and seawater which take into account metal-humic interactions.
Journal ArticleDOI
Measurement of complexation properties of humic and fulvic acids in natural waters with lead and copper ion-selective electrodes.
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The analytical concentration of humic substances from natural waters
R.F.C. Mantoura,J.P. Riley +1 more
TL;DR: In this article, the thermodynamics of the adsorption of humic and fulvic acids on the macroreticular polystyrene resin Amberlite XAD-2 have been investigated with a view to optimizing the conditions for its application to the analytical concentration of these compounds.