Copper binding by dissolved organic matter: II. Variation in type and source of organic matter

Copper binding by dissolved organic matter: II. Variation in type and source of organic matter

Copper binding properties of several fulvic acid (FA) and whole water samples are compared by means of an empirical model that was calibrated using Suwannee River FA. Within the calibration limits of the model (pH 5.0–8.5, total Cu concentration 0.1–100 μM, ionic strength 0.1, and dissolved organic...

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Veröffentlicht in:Geochim. Cosmochim. Acta; (United States) 1988, Vol.52 (1), p.195-200
Hauptverfasser: Cabaniss, S.E., Shuman, M.S.
Format: Artikel
Sprache:eng
Schlagworte:
580400 - Geochemistry- (-1989)
CARBON IONS
CHARGED PARTICLES
CHEMICAL BONDS
CHEMICAL COMPOSITION
CHEMISTRY
COPPER IONS
DISSOLVED GASES
ELEMENTS
FLUIDS
FULVIC ACIDS
GASES
GEOCHEMISTRY
GEOSCIENCES
IONS
MATHEMATICAL MODELS
MOLECULAR MODELS
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC MATTER
OXYGEN
PH VALUE
RIVERS
SOLUTES
STREAMS
SURFACE WATERS
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Zusammenfassung:Copper binding properties of several fulvic acid (FA) and whole water samples are compared by means of an empirical model that was calibrated using Suwannee River FA. Within the calibration limits of the model (pH 5.0–8.5, total Cu concentration 0.1–100 μM, ionic strength 0.1, and dissolved organic carbon, DOC, 1–10 mg C/1), ρCu in solutions of a variety of FA samples are predicted with < 0.2 ρ Cu units root mean square error (RMSE). Within the calibration limits, many whole water sample ρCu's are predicted with
ISSN:0016-7037
1872-9533
DOI:10.1016/0016-7037(88)90067-1