Whether pH is being used to test a sample against a legal requirement or specification; as part of an analytical method; for monitoring and controlling a reaction; as a process control in the chemical industry; or for the environmental monitoring of waste and effluents, it is important that all pH measurements are carried out in a logical and consistent manner, paying careful attention to experimental procedures, in order to obtain reliable results. This guide provides scientists with the knowledge of how to do just that, first by outlining the principles of pH measurement and buffer solutions. pH meters and electrodes are then discussed, including selection criteria and the care of electrodes. Finally, sections on making pH measurements and uncertainty are followed by a set of practical exercises. Measurement of pH is one of the Practical Laboratory Skills Training Guides, a series that aims to make achieving best practice easy. These invaluable manuals will enable both experienced and inexperienced staff to get the essential basics of any experiment right simply by following the clear and easy to use instructions provided. The guides are written by experienced scientists and include minimal theory, plenty of practical exercises in order to assess competence, and trouble shooting information. Other titles are: Measurement of Mass; Measurement of Volume; High Performance Liquid Chromatography; and Gas Chromatography.

This book presents an in-depth discussion on molecular electronics in an easy-to-understand manner, aiming at chemists, computer scientists, surface scientists, physicists, and applied mathematicians. Lighter overviews are provided for the science-minded layperson and the high tech entrepreneur in this nanoscale science. The author has included a detailed synthetic chemistry treasure chest, protocols of self-assembling routes for bottom-up fabrication atop silicon platforms, representative currentvoltage and memory readouts from molecular devices, and overviews of present architectural and mathematical approaches to programming molecular computing machines. The investment and commercial insertion landscape is painted along with a "Who's Who" in the molecular electronics business space. Advice and forewarnings are provided in a practical yet witty manner for the aspiring academic corporate founder and the business CEO wannabe seeking to establish a high tech company while wading through the idiosyncratic morass of university personalities and university-owned intellectual property.

Die Praxis der Elektrochemie im Labor wird in diesem Buch umfassend dargestellt. Dabei werden wichtige Verbindungen zu anderen wissenschaftlichen Teilgebieten und zur technisch-alltaglichen Anwendung deutlich hervorgehoben. In enger Vernetzung mit dem "Leitfaden der Elektrochemie" zeigt das Buch die gesamte Breite der Elektrochemie in Laborversuchen auf. Einheitlich und ubersichtlich aufgebaute Versuchsbeschreibungen enthalten alle fur einen erfolgreichen Versuch notwendigen Angaben. Musterresultate und deren Auswertungen helfen beim Verstandnis ebenso wie eine jeweils kurz gefasste theoretische Einfuhrung.

Originally compiled in Moscow between 1965 and 1982, and revised through 1995, this renowned 8-volume set comprises 10 parts, presenting a comprehensive set of critically selected thermal constants of inorganic, simple organic, and metallo-organic substances. Featuring 25,976 substances and more than 51,500 references, the volumes cover a broad range of constants, including enthalpy and Gibbs energy formation, dissociation energy, enthalpy content, entropy and heat capacity at standard temperature, crystallographic and critical parameters, ionization potential, and electron affinity.

A complete and up-to-date manual on HPCE theory and practice

High Performance Capillary Electrophoresis brings together in one volume essential coverage of the theory, techniques, and applications of this highly useful and efficient technology.

Suitable for the novice as well as the experienced user of HPCE, this book features expert contributions from highly respected scientists representing a wide range of disciplines. Chapters, which are grouped into sections to make information easy to find, cover:

• Theory and principles of the six HPCE techniques
• Detection systems, including indirect detection
• Essential operation topics such as sample introduction and stacking, coated capillaries, and method validation
• Recently developed methods, including two-dimensional separations, nonaqueous CE, and HPCE on microchips
• All of the basic HPCE applications, with an emphasis on bioanalytical uses
• HPCE in the determination of physico-chemical properties of molecules

With features and capabilities that match—and even surpass—those of conventional electrophoresis and HPLC, high performance capillary electrophoresis (HPCE) is the fastest developing technology for the separation and analysis of chemical compounds. Keeping pace with the rapid changes in this field and the wealth of journal articles on the subject is a difficult and time-consuming challenge for anyone needing a basic and up-to-date grasp of HPCE.

This book makes it much easier to find this important information—with comprehensive one-source coverage of all of the essential aspects of HPCE theory, techniques, and applications. Featuring the contributions of well-qualified, highly regarded scientists, it is organized into sections on:

• Theory and principles of HPCE techniques
• Detection systems
• Operation aspects and special methods in HPCE
• Uses in chemical analysis
• Physico-chemical studies

Specific topics addressed here that are not treated extensively by other books include two-dimensional separations, CE on microchips, nonaqueous CE, indirect detection, monitoring enzymatic reactions, and more.

As interest in HPCE continues to grow, it is clear that this technology has much to offer researchers and others working in disciplines ranging from analytical chemistry and biochemistry to pharmaceutical chemistry and biotechnology. High Performance Capillary Electrophoresis equips scientists and students with the knowledge they need to take immediate advantage of the exciting potential of HPCE.

" Cluster Materials" is the fourth volume of the highly successful series " Advances in Metal and Semiconductor Clusters." In this volume the focus is on the properties of clusters which determine their potential applications as new materials. Metal and semiconductor clusters have been proposed as precursors for materials or as actual materials since the earliest days of cluster research. In the last few years, a variety of techniques have made it possible to produce clusters in sizes varying from a few atoms up to several thousand atoms. While some measurements are performed in the gas phase on non-isolated clusters, many cluster materials can now be isolated in macroscopic quantities and more convenient studies of their properties become possible.
In this volume the authors focus on measurement of optical, electronic, magnetic, chemical and mechanical properties of clusters or of cluster assemblies. All of these properties must fall into acceptable ranges of behaviour before useful materials composed of clusters can be put into practical applications. As evidenced by the various work described here, the realisation of practical products based on cluster materials seems to be approaching rapidly.

Detonation Process in Two-Phase Media

Over the past 25 years, the molecular electrostatic potential has become firmly established as an effective guide to molecular interactions. With the recent advances in computational technology, it is currently being applied to a variety of important chemical and biological systems. Its range of applicability has expanded from primarily a focus on sites for electrophilic and nucleophilic attack to now include solvent effects, studies of zeolite, molecular cluster and crystal behavior, and the correlation and prediction of a wide range of macroscopic properties. Moreover, the increasing prominence of density functional theory has raised the molecular electrostatic potential to a new stature on a more fundamental conceptual level. It is rigorously defined in terms of the electron density, and has very interesting topological characteristics since it explicitly reflects opposing contributions from the nuclei and the electrons.

This volume opens with a survey chapter by one of the original pioneers of the use of the electrostatic potential in studies of chemical reactivity, Jacopo Tomasi. Though the flow of the succeeding chapters is not stringently defined, the overall trend is that the emphasis changes gradually from methodology to applications. Chapters discussing more theoretical topics are placed near the end. Readers will find the wide variety of topics provided by an international group of authors both convincing and useful.

Theory Of Radiation Processes In Metal Solid Solutions

This book continues the series Electroanalytical Chemistry: A Series of Advances, designed to provide authoritative reviews on recent developments and applications of well-established techniques in the field of electroanalytical chemistry. Electroanalytical techniques are used in a wide range of studies, including electro-organic synthesis, fuel cell studies, and radical ion formation. Each chapter in this volume provides comprehensive coverage of a subject area, including detailed descriptions of techniques, derivations of fundamental equations, and discussions of important related articles. The primary topics include: Nanoscale scanning electrochemical microscopy Electrochemical applications of scanning ion conductance microscopy Electrode surface modification using diazonium salts Each volume in the series provides the necessary background and a starting point for graduate students undertaking related research projects. They are also of particular interest to practicing analytical chemists concerned with learning and applying electroanalytical techniques and the fundamental theoretical principles upon which these techniques are based.

This book describes the details of the research and development of nickel-saving high nitrogen austenitic stainless steel and high nitrogen steel (HNS) with excellent corrosion resistance in the sea. This resistance was realized by using nitrogen (N), one of the ubiquitous elements, as an alloying element. By using N it is possible to save nickel (Ni), a national strategic substance in Japan, to be partially reduced or to be totally free. Not only basic information about low nickel HNS but also its promising application to bipolar plates of solid polymer fuel cells are provided. Reduction of Ni ions in the cell environment can be expected to extend the life of the fuel cell. Furthermore, there is discussion of the serendipitous application and impact of nickel-free HNS in the field of biomaterials as an anti-nickel allergy material, leading to its development for coronary stents. The book includes an explanation of how to develop extremely high corrosion-resistance steel by controlling its level of oxygen. For researchers and engineers involved in the development and evaluation of corrosion-resistant materials in particular, this book is extremely helpful for understanding the details of the development of those materials.

There is great interest in converting electricity overcapacity e.g. from renewables; from fuels such as hydrogen and synthetic gasoline; or for the conversion of nitrogen to ammonia. Solid oxide electrolysis offers a high efficiency route to these conversions utilising technology similar to solid oxide fuel cells. However, there are significant differences between electrolysis and fuel cell operation, and the fundamental aspects of electrolysis have received little attention. This Faraday Discussion brings together the research of leading scientists to address the fundamental aspects of solid oxide electrolysis. Research in this field could yield a new clean chemical industry, potentially allowing greater harvesting of renewables by storing excess energy in a more useful and higher energy density form than electricity.

Electrochemical methods of chemical analysis have been widely used for many years, most especially the trusty pH electrode and conductivity meter, but also in the mass-manufactured glucose test strips which place electrochemical measurements into the hands of non-scientists. The purpose of this volume is to address advances that will enable new measurement strategies in the future. Surveying research and development advances based on new methods, materials and devices that achieve improved electroanalytical performances, this collection encompasses chip-based systems, through nanodomain approaches and soft interfaces. This book is a vital resource for graduate students and professional analytical chemists.

"Covers the most recent methods and materials for the construction, validation, analysis, and design of electrochemical sensors for bioanalytical, clinical, and pharmaceutical applications--emphasizing the latest classes of enantioselective electrochemical sensors as well as electrochemical sensors for in vivo and in vitro diagnosis, for DNA assay and HIV detection, and as detectors in flow systems. Contains current techniques for the assay or biochemical assay of biological fluids and pharmaceutical compounds."

Investigating the relationship between the magnetic properties and structure of molecules, molecular magnetochemistry, is an area of growing interest to scientists in a variety of fields, including physical, organic and inorganic chemistry, molecular physics, and biophysics.
For the first time, systematic results on magnetic properties of molecules such as mean magnetic susceptibility, their anisotropies and principal magnetic axes are presented. Molecular Magnetochemistry is a comprehensive and up-to-date view on experimental methods not covered in previous volumes, including the Zeeman effect in vapor phase and magnetic birefringence of diamagnetic systems (Cotton-Mouton Effect). The relationship between magnetic and related electrical phenomena is also described, summing up experimental data on magnetic and electrical anisotropies and components of molecular quadrupole moments.

During his distinguished scientific career, Alfred Saupe made important contributions to liquid crystal research, laying the groundwork on which much of the current knowledge and research in the physics of liquid crystals is based. This volume features papers presented by Prof. Saupe's colleagues, students and friends at a festschrift in honor of his 70th birthday. In addition, a selection of Prof. Saupe's articles are reprinted in the original German and in English translation, offering the reader a unique opportunity to see both the early work of this important scientist and widespread effect of that work on later discoveries in liquid crystal physics.

Laser photoelectron emission not only allows investigation of interfaces between electrodes and solution, but also provides a method for fast generation of intermediate species in the vicinity of the interface and so permits study of their electrode reactions. Laser Electrochemistry of Intermediates presents the first-ever comprehensive review of this important phenomenon and its electrochemical applications.
The book explores how the innovative method of laser electron emission from metal electrodes resolves two fundamental problems inherent in current methods of intermediate species (IS) generation and detection: difficulty generating IS quickly in the vicinity of the electrode surface and low IS surface concentration. In addition, for the first time, quasi-free and solvated electrons, hydrogen atoms, simple organic and inorganic radicals, and ions with anomalous valence are systematically studied.
Laser Electrochemistry of Intermediates incorporates a unique, two-pronged analytical approach. First, the authors consider the kinetics and thermodynamics of the processes based on the participation of IS in its one-electron stages, thus allowing the assignment of real physical meaning to the electrochemical measurables. Second, they consider electrode reactions side by side with homogeneous reactions of electron transfer, facilitating understanding of the universal theory of electron transfer reactions in polar media as well as the peculiarities of these reactions occurring in the interface between electrode and solution.

Chemists increasingly apply electrochemical methods to the investigation of their systems, in particular towards a better understanding of molecular properties, the exploration of chemical reactions involving electron-transfer (ET), the initiation of further reactions by ET, the kinetic measurements, and the establishment of the reaction mechanisms, as well as the synthesis (electrosynthesis) of desired products. Trends in Molecular Electrochemistry presents recent research on procedures in molecular electroactivation and electrocatalysis, bioelectrochemistry, spectroelectrochemistry, and unconventional electrochemistry. The book highlights the state-of-the-art in the application of electrochemistry by taking an interdisciplinary approach to the study of both static and dynamic molecular properties of coordination compounds as well as inorganic, bioinorganic, and organometallic complexes, supramolecular systems, and metalloenzymes. The principles and approaches are often also valid for organic systems, which are illustrated in various contexts.