Capillary Electrophoresis Principles And Practice

Capillary Electrophoresis (CE) has had a very significant impact on the field of analytical chemistry in recent years as the technique is capable of very high resolution separations, requiring only small amounts of samples and reagents. Furthermore, it can be readily adapted to automatic sample handling and real time data processing. Many new methodologies based on CE have been reported. Rapid, reproducible separations of extremely small amounts of chemicals and biochemicals, including peptides, proteins, nucleotides, DNA, enantiomers, carbohydrates, vitamins, inorganic ions, pharmaceuticals and environmental pollutants have been demonstrated. A wide range of applications have been developed in greatly diverse fields, such as chemical, biotechnological, environmental and pharmaceutical analysis. This book covers all aspects of CE, from the principles and technical aspects to the most important applications. It is intended to meet the growing need for a thorough and balanced treatment of CE. The book will serve as a comprehensive reference work. Both the experienced analyst and the newcomer will find the text useful.

Capillary electrophoresis (CE) is a brand-new analytical me- thod with the capability of solving many analytical separa- tion problems very fast and economically. This method gives new information about the investigated substances which can- not easily be obtained by other means. CE has become an established method only recently, but will be implemented in almost every analytical laboratory in industry, service units and academia in the near future. The most important fields of CE application are pharmaceutical and biochemical research and quality control. The authors have exhaustive practical experience in the application of CE methods in the pharmaceutical industry and provide the reader with a comprehensive treatment of this method. The main focus is on how to solve problems when applying CE in the laboratory. Physico-chemical theory is only dealt with in depth when necessary to understand the underlying separation mechanisms in order to solve your problems at the analytical bench. An addendum includes tables on the preparation of buffers and recommended further reading.

This book is designed to be a practical guide, used by wide audience, including those new to CE, those more experienced, routine users, those interested in technology development, and those involved with applications research. References have been emphasized to allow the reader to explore the detailed specifics and theoretical foundations. This book draws together the rapidly evolving, diverse, and multidisciplinary subject of capillary electrophoresis (CE). It is designed as a practical guide to be used by a wide audience, including those new to CE as well as more experienced users. This volume presents the capabilities, limitations, potentials, and future challenges facing each area of CE. Key aspects of this technique, such as high resolution capability, full automation, high speed separations, quantification of nanoliter sample volumes, and simultaneous multiple detection capabilities are presented in a concise and logical fashion. This book is designed to help you make the most of your CE separations, and includes comprehensive information on: Electroosmosis, separation efficiency, and Joule heating Detection methods In-depth discussion of the separation principles and capabilities of the major modes of CE Sieving gel electrophoresis Isoelectric focusing Free solution CE Micellar electrokinetic capillary chromatography Entangled polymer matrix-based separation Detailed treatment of the application of CE to a wide range of molecules, supplemented with extensive "hands-on" illustrations

HPLC and CE: Principles and Practice presents the latest information on the most powerful separation techniques available: high-performance liquid chromatography (HPLC) and capillary electrophoresis (CE). Fundamental theory, instrumentation, modes of operation, and optimization of separations are presented in a concise, non-technical style to help the user in choosing the appropriate technique quickly and accurately. Well- illustrated and containing convenientend-of-chapter summaries of the major concepts, the book provides in-depth coverage of trouble-shooting, improvement of resolution, data manipulation, selectivity, and sensitivity. Graduate students, technicians, and researchers who must use separations with little or no background in analytical chemistry can overcome separation anxiety and get started in obtaining the best possible separations in minimal time. The book will alsobe useful to analytical chemists who need a better understanding of theory and processes. Fully up-to-date information on both HPLC and CE includes troubleshooting and comparisons of the two techniques Applicable to a wide variety of separation problems Covers basic concepts governing any separation as well as instrumentation and how to use it Helps the user to obtain optimal resolution in minimal time Contains information on special procedures such as chiral separations, affinity chromatography, and sample preparation Includes information on upcoming trends such as miniaturization Major concepts in each chapter are organized to allow access to information easily and quickly Contains practical bibliography for accessing the literature

This book is intended to be a working guide to the operation of capillary electrophoresis (CE) instrumentation. Since CE is still a rap idly maturing technique, detailed validated protocols are not widely established. Therefore, extensive experimental procedures are not pro vided for individual analyses. The intention is to provide general guide lines on the principles and practice of CE and to give an overview of the specific technologies and important application areas. Part I provides operating instructions for standard commercially available instruments. Guidelines are included for activities such as changing capillaries, method development, quantitative procedures, optimization of precision and sensitivity, and the validation of meth ods, fraction collection, and troubleshooting, as well as a quick guide to running a separation. The application range of CE is possibly the most diverse of all analytical techniques and ranges from large, complex macromolecules, such as proteins and nucleic acids, to small solutes, such as organic drugs and inorganic anions and cations.

The importance of capillary electrophoresis (CE) as an analytical tool has increased dramatically over the last ten years. It has changed from being an exploratory technique, mainly of academic interest, to one that is applied to solve "real" analytical problems. CE is easily adapted to its various modes of operation, often requiring little more than a change of the buffer solution, and is quickly becoming the preferred technique when analyzing minute amounts of available material. Featuring new chapters on CE analysis of inorganic ions and carbohydrates, the new edition of Capillary Electrophoresis not only presents this method as an academic tool, but also provides applications for solving "real-world" analytical problems. This updated Second Edition reflects the increasing use of CE over the last 10 years, how it is being applied, and the basic theoretical aspects of the separation and detection methodology of CE. Capillary Electrophoresis: Theory and Practice will appeal to students and professionals of analytical chemistry, physical chemistry, biochemistry, and biotechnology and includes suitable experiments designed to be attempted by university or college students, or anyone else wishing to familiarize themselves with CE.

This book examines challenges and applications, as well as principles of capillary electrophoresis. Some of the topics discusses include the preparation and application of photosensitive capillary electrophoresis coatings; the application of capillary zone electrophoresis to trace analyses of inorganic anions in seawater; theoretical principles and applications of high performance capillary electrophoresis; and the application of capillary zone electrophoresis methods for polyphenols and organic acids to separate different extracts.

Das weltweite Interesse an der Trennung von Enantiomeren, Spiegelbildern ein und derselben chemischen Verbindung, nimmt zu, da diese Formen beispielsweise verschiedene physiologische Wirkungen hervorrufen können. Eine hochaktuelle Technik der Stofftrennung in diesem Zusammenhang ist die Kapillarelektrophorese, die hier von den theoretischen Grundlagen bis hin zu analytischen Details und Anbieterlisten ausführlich beschrieben wird.