This volume is ba. sed on the presentations gi ven at the ElectroFinnAnalysis conference held on J une 6-9, 1988 in Turku-Äbo, Finland. This event was the second in a series of electroanalytical conferences. The first was held in Ireland 1986 and the next will be held in Spain 1990. The aim of these conferences is tobring tagether scientists who use electroanalytical methods in their research. This is also reflected in the disposition of this volume where instrumentation and applications from the different fields have their own chapters. The editors are grateful to Mr. Johan Nyman, Mr. Kent Westerbolm and Mr. Markku Lehto for their technical assistance during the editorial work of this volume. Ari Ivaska Andrzej Lewenstam Ralf Sara V CONTENTS lntroduction Ari Ivaska ELECTROCHEMICAL INSTRUMENTATION AND METHODS New Instrumental Approaches to Fast Electro-Chemistry at Ultramicroelectrodes ... 5 Larry R. Faulkner, Michael R. Walshand Chuanjing Xu Photoelectroanalytical Chemistry - Methods and Instrumentation ... 15 J ouko J. Kaukare Experiences of an On-Line Fourier Transform Faradaic Admittance Measurement (FT-FAM) SystemBasedon Digital Signal Processors ... ... 21 Sten 0. Engblom, Mikael Wasberg, Johan Bobacka and Ari Iva. ska Processor-Controlled Fast Potentiostat . '. . . 31 J. Kaukare and J. Lukka. ri Smoothing of AC Polaragraphie Data by FFT Filtering . ' ... 37 J oha. n Bobacka. a. nd Ari Jvaska Reverse Pulse Voltammetry at Microelectrodes. New Possibilities in Analytical Chemistry ... 47 Zbigniew Stojek Multiple Sensor Arrays: Advantages and lmplications 51 Dermot Diamond Simultaneaus ESR-Electrochemical Investigations at Solid Electrodcs.

This laboratory book delivers hands-on advice to researchers in all fields of life and physical sciences already applying or intending to apply electro-analytical methods in their research. The authors represent in a strictly practice-oriented manner not only the necessary theoretical background but also substantial know-how on measurement techniques, interpretation of data, experimental setup and trouble shooting. The author and the editor are well-known specialists in their field.

The critically acclaimed guide to the principles, techniques, and instruments of electroanalytical chemistry-now expanded and revised Joseph Wang, internationally renowned authority on electroanalytical techniques, thoroughly revises his acclaimed book to reflect the rapid growth the field has experienced in recent years. He substantially expands the theoretical discussion while providing comprehensive coverage of the latest advances through late 1999, introducing such exciting new topics as self-assembled monolayers, DNA biosensors, lab-on-a-chip, detection for capillary electrophoresis, single molecule detection, and sol-gel surface modification. Along with numerous references from the current literature and new worked-out examples, Analytical Electrochemistry, Second Edition offers clear, reader-friendly explanations of the fundamental principles of electrochemical processes as well as important insight into the potential of electroanalysis for problem solving in a wide range of fields, from clinical diagnostics to environmental science. Key topics include: The basics of electrode reactions and the structure of the interfacial region Tools for elucidating electrode reactions and high-resolution surface characterization An overview of finite-current controlled potential techniques Electrochemical instrumentation and electrode materials Principles of potentiometric measurements and ion-selective electrodes Chemical sensors, including biosensors, gas sensors, solid-state devices, and sensor arrays

This book concentrates on the electrochemistry/environment relationship including, among others, chapters on design and operation of electrochemical reactors and separators, process simulation, development and scale-up, optimization and control of electrochemical processes applied to environmental problems, also including economic analysis, description of unique current and future applications, in addition to basic research into developing new technologies. It is hoped that this volume will be considered interesting and extremely timely to specialists in electrochemistry and environmental sciences.

This text details contemporary electroanalytical strategies of biomolecules and electrical phenomena in biological systems. It presents significant developments in sequence-specific DNA detection for more efficient and cost-effective medical diagnosis of genetic and infectious diseases and microbial and viral pathogens. The authors discuss the late

Das führende Werk auf seinem Gebiet - jetzt durchgängig auf den neuesten Stand gebracht! Die theoretischen Grundlagen der Elektrochemie, erweitert um die aktuellsten Erkenntnisse in der Theorie des Elektronentransfers, werden hier ebenso besprochen wie alle wichtigen Anwendungen, darunter modernste Verfahren (Ultramikroelektroden, modifizierte Elektroden, LCEC, Impedanzspektrometrie, neue Varianten der Pulsvoltammetrie und andere). In erster Linie als Lehrbuch gedacht, läßt sich das Werk aber auch hervorragend zum Selbststudium und zur Auffrischung des Wissensstandes verwenden. Lediglich elementare Grundkenntnisse der physikalischen Chemie werden vorausgesetzt.

This work provides comprehensive reviews on recent developments and applications of well-established techniques in the field of modern electro- and electodynamical chemistry. It presents discussions of established techniques and of areas still under investigation, and covers peripherally related areas, including the kinematics and mechanics of electrode reactions, which may be applied to electrochemical problems.

Agricultural and Food Electroanalysis offers a comprehensive rationale of electroanalysis, revealing its enormous potential in agricultural food analysis. A unique approach is used which fills a gap in the literature by bringing in applications to everyday problems. This timely text presents in-depth descriptions about different electrochemical techniques following their basic principles, instrumentation and main applications. Such techniques offer invaluable features such as inherent miniaturization, high sensitivity and selectivity, low cost, independence of sample turbidity, high compatibility with modern technologies such as microchips and biosensors, and the use of exciting nanomaterials such as nanoparticles, nanotubes and nanowires. Due to the advantages that modern electroanalytical techniques bring to food analysis, and the huge importance and emphasis given today to food quality and safety, this comprehensive work will be an essential read for professionals and researchers working in analytical laboratories and development departments, and a valuable guide for students studying for careers in food science, technology and chemistry.

Provides comprehensive, authoritative reviews on recent developments and applications of well-established techniques in the field of modern electro- and electroanalytical chemistry, defined in its broadest sense.

The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.