Humic substances, the remarkable brown biomaterials in animals, coals, plants, sediments, soils and waters, are crucial components of the carbon cycle and other life processes. Thus greater knowledge and understanding of these versatile materials is of great importance to the productivity, health and safety of the world's ecosystems, humans, land and water. Presenting the best and most recent research in this important area, this book focuses on the molecular and chemical aspects of humic substances, with sophisticated analytical, chemical and physical techniques providing vital information. Areas covered include spectroscopy, modelling, mobility, properties and analysis of humic substances. Humic Substances: Structures, Models and Functions will be welcomed by researchers and professionals in academia, industry and government agencies worldwide, particularly where the science of humic substances finds applications, such as environmental remediation and sustainable agriculture.
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The Study of Humic Substances: In Search of A Paradigm; Humic Substances and Humification; Humification of Duck Farm Wastes; Catalytic Effects of Hydroxy-Aluminum and Silicic Acid on Catechol Humification; Effect of Cover Crop Systems on the Characteristics of Soil Humic Substances; Structural-Group Quantitation by CP/MAS 13C NMR Measurements of Dissolved Organic Matter from Natural Surface Waters; Structural Investigation of Humic Substances Using 2D Solid-State Nuclear Magnetic Resonance; Procedures for the Isolation and Fractionation of Humic Substances; Differences in High Perfomance Size Exclusion Chromatography between Humic Substances and Macromolecular Polymers; Characterization of the 'Fluorescent Fraction' of Soil Humic Acids; Investigations of Humic Materials Aggregation with Scattering Methods; Application of MALDI-TOF-MS to the Characterisation of Fulvic Acids; Sorption of Aqueous Humic Acid to a Test Aquifer Material and Implications for Subsurface Remediation; Validation of a One-Parameter Concept to Elucidate the Absorption of Hydrophobic Organic Compounds into Humic Organic Matter and Bioconcentration Processes; The Interaction between Esfenvalerate and Humic Substances of Different Origin; Adsorption-Desorption Interactions of Environmental Endocrine Disruptors with Humic Acids from Soils and Urban Sludges; Binding of Organic Nitrogen Compounds to Soil Fulvic Acid as Measured by Molecular Fluorescence Spectroscopy; Flow Field-Flow Fractionation-Inductively Coupled Plasma-Mass Spectrometry (FLOW-FFF-ICP-MS): A Versatile Approach for Characterization of Trace Metals Complexed to Soil-Derived Humic Acids; EXAFS and XANES Studies of Effects of pH on Complexation of Copper by Humic Substances; Main Conclusions of the EC-Humics Project: "Effects of Humic Substances on the Migration of Radionuclides: Complexation and Transport of Actinides;" Natural Organic Matter from a Norwegian Lake: Possible Structural Changes Resulting from Lake Acidification; Organoclays Remove Humic Substances from Water; Mass Spectrometry and Capillary Electrophoresis Analysis of Coal - Derived Humic Acids Produced from Oxihumolite. A Comparison Study; Analysis and Characterization of a "Standard" Coal Derived Humic Acid; Performance Improvement and Applications of Humasorb-CsTM: A Humic Acid-Based Adsorbent for Contaminated Water Clean Up; Humic Acid Products for Improved Phosphorus Fertilizer Management; Subject Index.About the Author:
Elham Ghabbour is a Senior Scientist at Northeastern University, Boston. With two decades of research experience in physical /analytical chemistry, her major interest is understanding the macro- and microstructures of humic substances with solutes and metals as probes and catalysis by HSs.
Geoffrey Davies is Matthews Distinguished University Professor at Northeastern University. With research experience in physical inorganic chemistry, his major interests are the thermodynamics and kinetics of solute binding by humic substances and the development of models for HSs systems.
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