The Principles of Ion Selective Electrodes and of Membrane Transport

Author: W.E. Morf
Publisher: Elsevier
ISBN: 0444597557
Format: PDF, Docs
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The Principles of Ion Selective Electrodes and of Membrane Transport is a collection of research works on the theory, principles, and fundamentals of ion-selective electrodes and of membrane transport. This book is organized into two parts encompassing 15 chapters that highlight the application of the membrane model. Part A is a general discussion of membrane potentials and membrane transport. This part describes the formulations of the interfacial potential contribution due to phase boundaries. This part also explores the diffusion potential, the nonideality of diffusion layers or membrane phases, the liquid-junction potential arising in conventional potentiometric measuring cells. Other topics covered in this part include the practical solution for the membrane potential; the ion-transport and the electrical properties of bulk membranes; and the characteristics of lipid bilayer membranes. Part B considers the fundamentals of ion-selective electrodes. This part begins with discussions of the principles, response behavior, ion selectivity, and detection limits of solid-state membrane electrodes. This part also examines several important extensions and modifications of the Sandblom-Eisenman-Walker theory; the characteristics of neutral carrier membrane electrodes; and the theory of glass electrodes.

Small Scale Structures

Author: N.F. de Rooij
Publisher: Elsevier
ISBN: 0444596305
Format: PDF, Mobi
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This book contains the proceedings of 3 symposia dealing with various aspects of small scale structures. Symposium A deals with the development of new materials, including ceramics, polymers, metals, etc., their microstructuring as well as their potential for application in microsystems. All kinds of microsystems are considered, e.g. mechanical, magnetic, optical, chemical, biochemical and issues related to assembly and packaging were also covered. Symposium B deals with four topics: synthesis and preparation of nanostructured ceramics and composites with well-controlled geometric order and chemical composition; coupling of these structures to transducers for current and future chemical and biochemical devices based upon microoptics, microelectronics, microionics, microelectrodes or molecular cages; planar thin film structures and the control of covalent thin film/transducer couplings, the control of selective, stable and sensitive recognition centers at the surface, at grain boundaries or in the bulk of selected nanostructured materials with extremely narrow particle size distributions; analysis of these structures and sensor functions by means of techniques utilizing photons, electrons, ions, or atomic particle beam probes. Symposium E examines the structure-property relationships in thin films and multilayers, from the point of view of both fundamental studies and practical applications.

Ion Selective Electrodes

Author: E. Pungor
Publisher: Elsevier
ISBN: 1483287238
Format: PDF, Mobi
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This volume presents recent developments and the state-of-the-art of ion-selective electrodes, taken from discussions and papers presented at the 5th Symposium, held at Matrafured in Hungary. Contains 44 papers.

Ion Selective Electrodes in Analytical Chemistry

Author: Henry Freiser
Publisher: Springer Science & Business Media
ISBN: 1468437763
Format: PDF, ePub, Mobi
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We continue in this second volume the plan evident in the first; i.e., of presenting a number of well-rounded up-to-date reviews of important developments in the exciting field of ion-selective electrodes in analytical chemistry. In this volume, in addition to the exciting applications of ISE'S to biochemistry systems represented by the description of enzyme electrodes, there is featured the most recent development in ISE'S, namely, the joining of the electrochemical and solid state expertise, resulting in CHEMFETS. The scholarly survey of the current status of ISE'S will undoubtedly be welcomed by all workers in the field. Tucson, Arizona Henry Freiser vii Contents Chapter 1 Potentiometric Enzyme Methods Robert K. Kobos 1. Introduction . . . . . . 1 2. Soluble Enzyme Systems . . . 5 2.1. Substrate Determinations 5 2.2. Enzyme Determinations . 13 2.3. Inhibitor Determinations. 18 3. Immobilized Enzyme Systems . 19 3.1. Methods of Immobilization. 19 3.2. Characteristics of Immobilized Enzymes 23 3.3. Analytical Applications with Ion-Selective Electrodes 23 4. Enzyme Electrodes 31 4.1. Urea Electrodes 35 4.2. Amygdalin Electrodes 39 4.3. Glucose Electrodes . 40 4.4. Penicillin Electrodes 40 4.5. Amino Acid Electrodes 41 4.6. Nucleotide Electrodes 46 4.7. Uric Acid Electrode 47 4.8. Creatinine Electrode 48 48 4.9. Acetylcholine Electrodes. 4.10. D-Gluconate Electrode 49 4.11. Lactate Electrode 49 4.12. Inhibitor Determination 50 4.13. Substrate Electrodes 50 4.14. Current Trends . . . .