Title Cation binding by humic substances / Edward Tipping

Edition 1st ed Published New York : Cambridge University Press, 2002

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Description 1 online resource (x, 434 pages) : illustrations Series Cambridge environmental chemistry series Cambridge environmental chemistry series. Contents Natural organic matter and humic substances -- Isolation and classification of humic substances -- Formation and decomposition of humic substances -- Chemical and physical properties of humic substances -- Environmental concentrations of humic substances -- Humic substances -- accident or design? -- Environmental solution and surface chemistry -- Solutions and solutes -- Natural particulate matter -- Physico-chemical interactions in environmental aqueous systems -- Equilibrium and kinetics -- Chemical speciation -- Calculation of equilibrium concentrations -- Proton dissociation from weak acids -- Acids and bases -- Buffering -- Kinetics -- Diprotic acids -- Extension to higher polyprotic acids -- Electrostatic interactions among sites -- Proton dissociation from well-defined polymers -- Proton dissociation from humic substances -- Metal-ligand interactions -- Coordination -- Chemical equilibria involving metal ions, protons and simple weak acid ligands -- Multisite ligands -- Electrostatic interactions -- Results with well-defined macromolecules -- Methods for measuring cation binding by humic substances -- The humic sample -- Determination of proton binding by potentiometry -- Analytical determination of acid group contents -- Direct measurement of equilibrium metal binding -- principles -- Separation methods to quantify equilibrium metal binding -- Competition methods -- Electrochemical techniques -- Spectroscopic methods -- Measurement of the kinetics of metal-humic interactions Summary "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 that regulate the chemical reactivity and bioavailability of hydrogen and metal ions in the natural environment." "This comprehensive account of cation binding by humic matter is a valuable resource for advanced undergraduate and graduate students, environmental scientists, ecologists and geochemists."--Jacket Bibliography Includes bibliographical references (pages 391-421) and index Notes Print version record Subject Humic acid -- Derivatives Cations. Ligand binding (Biochemistry) -- Mathematical models Cations SCIENCE -- Life Sciences -- Biochemistry. Cations Humic acid -- Derivatives Ligand binding (Biochemistry) -- Mathematical models Huminsäuren Kation Mathematisches Modell Wechselwirkung Bioquímica. Química ambiental. Húmus. Form Electronic book LC no. 2001043867 ISBN 0511039972 9780511039973 9780511535598 0511535597 9786610429394 6610429391

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