Cation Binding by Humic SubstancesCambridge University Press, 30 במאי 2002 - 434 עמודים Humic substances are highly-abundant organic compounds formed in soils and sediments by the decay of dead plants, microbes and animals. This book focuses on the important binding properties of these compounds which regulate the chemical reactivity and bioavailability of hydrogen and metal ions in the natural environment. Topics covered include the physico-chemical properties of humic matter and interactions of protons and metal cations with weak acids and macromolecules. Experimental laboratory methods are also discussed, together with mathematical modelling. Finally the author looks at how the results of this research can be used to interpret environmental phenomena in soils, waters and sediments. This comprehensive account of cation binding by humic matter is a valuable resource for advanced undergraduate and graduate students, environmental scientists, ecologists and geochemists. |
תוכן
| 1 | |
| 4 | |
3 Environmental solution and surface chemistry | 32 |
4 Proton dissociation from weak acids | 52 |
5 Metalligand interactions | 77 |
6 Methods for measuring cation binding by humic substances | 103 |
7 Quantitative results with isolated humic substances | 128 |
8 Cation binding sites in humic substances | 157 |
10 Applications of comprehensive parameterised models | 210 |
11 Predictive modelling | 253 |
12 Cationhumic binding and other physicochemical processes | 262 |
13 Cation binding by humic substances in natural waters | 288 |
14 Cation binding by humic substances in soils and sediments | 334 |
15 Research needs | 380 |
References | 391 |
| 422 | |
מהדורות אחרות - הצג הכל
מונחים וביטויים נפוצים
Acta adsorption aggregation aluminium aquatic humic substances atoms bidentate binding by humic binding sites bound Buffle Ca2+ Cabaniss calculated carboxylic carboxylic acid cation binding Cd2+ Chapter charge Chem chemical chemistry colloidal competition complexes Cosmochim counterions Cu2+ dependence determined dissolved organic matter Donnan electrostatic electrostatic effects Environ equation equilibrium constants example Fe(III Figure fluorescence formation fraction free metal fulvic acid Geochim groups heterogeneity humic acid humic matter humic substances hydrophobic interactions ionic strength kinetics Kinniburgh Koopal ligand measurements metal binding metal cations metal ions method mineral mmol mol dm-3 mol dm³ molecular weight natural environment natural organic matter natural waters obtained optimised oxides particles predicted proton binding proton dissociation protons and metal range reactions Redrawn samples Section sediments Soil Sci solubility solution speciation structure studies surface Suwannee River Table Technol Tipping titration total concentration WHAM