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Analytical Electrochemistry

Sprache: Englisch.
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Titel: Analytical Electrochemistry
Autor/en: Joseph Wang

ISBN: 0471678791
EAN: 9780471678793
Sprache: Englisch.

April 2006 - gebunden - 250 Seiten


Third Edition covers the latest advances in methodologies, sensors, detectors, and mIcrochips

The greatly expanded Third Edition of this internationally respected text continues to provide readers with a complete panorama of electroanalytical techniques and devices, offering a balancebetween voltammetric and potentiometric techniques. Emphasizing electroanalysis rather than physical electrochemistry, readers gain a deep understanding of the fundamentals of electrodereactions and electrochemical methods. Moreover, readers learn to apply their newfoundknowledge and skills to solve real-world analytical problems.

The text consists of six expertly crafted chapters:
* Chapter 1 introduces fundamental aspects of electrode reactions and the structure of the interfacial region
* Chapter 2 studies electrode reactions and high-resolution surface characterization, using techniques ranging from cyclic voltammetry to scanning probe microscopies
* Chapter 3 features an overview of modern finite-current controlled potential techniques
* Chapter 4 presents electrochemical instrumentation and electrode materials, including modified electrodes and ultramicroelectrodes
* Chapter 5 details the principles of potentiometric measurements and various classes of ion selective electrodes
* Chapter 6 explores the growing field of chemical sensors, including biosensors, gas sensors, microchip devices, and sensor arrays

Among the new topics covered, readers discover DNA biosensors, impedance spectroscopy, detection of capillary electrophoresis, diamond electrodes, carbon-nanotube and nanoparticle-based arrays and devices, large-amplitude AC voltammetry, solid-state ion-selective electrodes, ion selective electrodes for trace analysis, and lab-on-a-chip devices. New figures, worked examples, and end-of-chapter questions have also been added to this edition.

Given the rapid pace of discovery and growth of new applications in the field, this text is essential for an up-to-date presentation of the latest advances in methodologies, sensors, detectors, and microchips. It is recommended for graduate-level courses in electroanalytical chemistry and as a supplement for upper-level undergraduate courses in instrumental analysis. The text also meets the reference needs for any industry, government, or academic laboratory engaged in electroanalysis and biosensors.



Abbreviations and Symbols.

1. Fundamental Concepts.

1.1 Why Electroanalysis?

1.2 Faradaic Processes.

1.2.1 Mass-Transport-Controlled Reactions. Potential-Step Experiment. Potential-Sweep Experiments.

1.2.2 Reactions Controlled by the Rate of Electron Transfer. Activated Complex Theory.

1.3 Electrical Double Layer.

1.4 Electrocapillary Effect.

1.5 Supplementary Reading.



2. Study of Electrode Reactions and Interfacial Properties.

2.1 Cyclic Voltammetry.

2.1.1 Data Interpretation. Reversible Systems. Irreversible and Quasi-reversible Systems.

2.1.2 Study of Reaction Mechanisms.

2.1.3 Study of Adsorption Processes.

2.1.4 Quantitative Applications.

2.2 Spectroelectrochemistry.

2.2.1 Experimental Arrangement.

2.2.2 Principles and Applications.

2.2.3 Electrochemiluminescence.

2.2.4 Optical Probing of Electrode-Solution Interfaces.

2.3 Scanning Probe Microscopy.

2.3.1 Scanning Tunneling Microscopy.

2.3.2 Atomic Force Microscopy.

2.3.3 Scanning Electrochemical Microscopy.

2.4 Electrochemical Quartz Crystal Microbalance.

2.5 Impedance Spectroscopy.




3. Controlled-Potential Techniques.

3.1 Chronoamperometry.

3.2 Polarography.

3.3 Pulse Voltammetry.

3.3.1 Normal-Pulse Voltammetry.

3.3.2 Differential-Pulse Voltammetry.

3.3.3 Square-Wave Voltammetry.

3.3.4 Staircase Voltammetry.

3.4 AC Voltammetry.

3.5 Stripping Analysis.

3.5.1 Anodic Stripping Voltammetry.

3.5.2 Potentiometric Stripping Analysis.

3.5.3 Adsorptive Stripping Voltammetry and Potentiometry.

3.5.4 Cathodic Stripping Voltammetry.

3.5.5 Abrasive Stripping Voltammetry.

3.5.6 Applications.

3.6 Flow Analysis.

3.6.1 Principles.

3.6.2 Cell Design.

3.6.3 Mass Transport and Current Response.

3.6.4 Detection Modes.




4. Practical Considerations.

4.1 Electrochemical Cells.

4.2 Solvents and Supporting Electrolytes.

4.3 Oxygen Removal.

4.4 Instrumentation.

4.5 Working Electrodes.

4.5.1 Mercury Electrodes.

4.5.2 Solid Electrodes. Rotating Disk and Rotating Ring Disk Electrodes. Carbon Electrodes. Metal Electrodes.

4.5.3 Chemically Modified Electrodes. Self-Assembled Monolayers. Carbon-Nanotube-Modified Electrodes. Sol-gel Encapsulation of Reactive Species. Electrocatalytically Modified Electrodes. Preconcentrating Electrodes. Permselective Coatings. Conducting Polymers.

4.5.4 Microelectrodes. Diffusion at Microelectrodes. Microelectrode Configurations. Composite Electrodes.




5. Potentiometry.

5.1 Principles of Potentiometric Measurements.

5.2 Ion-Selective Electrodes.

5.2.1 Glass Electrodes. pH Electrodes. Glass Electrodes for Other Cations.

5.2.2 Liquid Membrane Electrodes. Ion Exchanger Electrodes. Neutral Carrier Electrodes.

5.2.3 Solid-State Electrodes.

5.2.4 Coated-Wire Electrodes and Solid-State Electrodes Without an Internal Filling Solution.

5.3 On-line, On-site, and In Vivo Potentiometric Measurements.




6. Electrochemical Sensors.

6.1 Electrochemical Biosensors.

6.1.1 Enzyme-Based Electrodes. Practical and Theoretical Considerations. Enzyme Electrodes of Analytical Significance. Tissue and Bacteria Electrodes.

6.1.2 Affinity Biosensors. Immunosensors. DNA Hybridization Biosensors. Receptor-Based Sensors. Electrochemical Sensors Based on Molecularly Imprinted Polymers.

6.2 Gas Sensors.

6.2.1 Carbon Dioxide Sensors.

6.2.2 Oxygen Electrodes.

6.3 Solid-State Devices.

6.3.1 Ion-Selective Field Effect Transistors.

6.3.2 Microfabrication of Solid-State Sensor Assemblies.

6.3.3 Microfabrication Techniques.

6.3.4 Micromachined Analytical Microsystems.

6.4 Sensor Arrays.






JOSEPH WANG, PHD, is Director of the Center for Bioelectronics and Biosensors at the Biodesign Institute and Professor in the Departments of Chemical & Materials Engineering and Chemistry & Biochemistry at Arizona State University. Dr. Wang has authored six books and more than 680 research papers. He holds fifteen patents and is the recipient of the American Chemical Society's Award in Chemical Instrumentation and the Heyrovsky Medal. He was ranked the "Most Cited Electrochemist in the World" in 1995, and was ranked number five on the ISI list of "Most Cited Researchers in Chemistry" for the period 1995 to 2005.


"Anyone at any level wanting to get involved in electrochemical experimentation should benefit from access to this book." ( CHOICE , October 2006)
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