Size Exclusion Chromatography


Book Description

Although size exclusion chromatography (SEC) is perhaps the most popular and widely used technique for determining the molecular weight distribution of polymeric materials, there have been very few texts written on this topic. During the past decade, SEC has experienced a considerable amount of growth in regard to column and detector technology and new applications. With these advances, SEC can now be used for determining absolute molecular weight, polymer chain conformation and size, and branching, as well as polymer solution properties. This book introduces the reader to the fundamentals of SEC with emphasis on practical aspects of the technique, such as column and mobile selection, calibration, new detector capabilities and guidelines for performing SEC on most types of polymers, especially those of industrial importance. This book is intended for either those new to the field of SEC, or for those research workers who require a more comprehensive background.




Modern Size-Exclusion Liquid Chromatography


Book Description

The Second Edition of Modern Size-Exclusion Chromatography offers a complete guide to the theories, methods, and applications of size-exclusion chromatography. It provides an unparalleled, integrated, up-to-date treatment of gel permeation and gel filtration chromatography. With its detailed descriptions of techniques, data handling, compilations of information on columns and column packings, and tables of important solvents and reference materials, the book offers readers everything they need to take full advantage of this popular macromolecular characterization technique. Since publication of the first edition in 1979, there have been many important advances in the field of size-exclusion chromatography. This Second Edition brings the book thoroughly up to date, with expert coverage of: New and emerging industrial and research applications Practical aspects of size-exclusion chromatography (SEC) and multidetector and multidimensional SEC technologies for polymer architecture and copolymer analysis Updated information on the latest equipment and techniques New best practices for the lab SEC in relation to polymer characterization techniques such as GPEC, LCCC, and rheology Throughout the text, detailed examples guide you step by step through all the latest techniques and applications. With its extensive revisions and updates written by leading experts and pioneers in the field, Modern Size-Exclusion Liquid Chromatography remains the definitive resource for the broad range of researchers and scientists who use HPLC and GPC methods.




Size Exclusion Chromatography


Book Description

There is a large and increasing variety of polymers currently in use both for domestic and industrial applications. The properties of polymers are deter mined not only by their chemical type, but also by their molecular mass and molecular mass distributions. However, while the chemical type of polymers can be determined relatively easily, the average molecular masses and molecular mass distributions are more difficult to measure. The molecular mass averages of a polymer are measured by specialized and complex techniques such as light scattering (for weight average) and osmometry (for number average). Thus, complete characterization of the molecular mass distribution of a polymer by such means requires separating the sample into many fractions which can then be examined individually. Since size exclusion chromatography was introduced as a rapid and straightforward technique for the characterization of polymer molecular mass distributions, there have been tremendous increases in development and applications, and it was felt appropriate to bring together into a single volume the information required by scientists from many disciplines who wish to use the technique. This book should be useful to existing users, those who are new to the technique, and those who may be familiar with the basic technique and now wish to extend their capabilities to more complex applications (or to consider the potential of a number of related techniques). The book will also be of general interest to the experienced liquid chromatographer.




Column Handbook for Size Exclusion Chromatography


Book Description

Column Handbook for Size Exclusion Chromatography is the first comprehensive reference to provide everything one needs to know about commercial analytical and preparative columns for size exclusion and gel filtration chromatography (SEC and GFC). SEC is now widely used as a quality assurance method in the polymer industry (both synthetic and biopolymers) to determine molecular weight and molecular weight distribution. The Handbook contains contributions from every column manufacturer around the world and from many experienced column users. It covers the technology, characterization, application, evaluation, maintenance, and quality control of analytical and preparative columns for SEC and GFC. Also included are columns for two closely related techniques, hydrodynamic chromatography and high osmotic pressure chromatography.Key Features* Evaluate and select columns with confidence for specific applications* Optimize separations and improve the ruggedness of analytical methods* Extend the service time of a column* Establish a quality-control program to ensure consistency in column performance* Avoid the expense of column damage or purchases that do not give the expected results




Column Handbook for Size Exclusion Chromatography


Book Description

The column is the heart of a chromatographic system. For the first time, complete and authoritative information on columns for size exclusion and gel filtration chromatography is available in a single volume containing contributions from every major manufacturer worldwide and many renowned column users. This comprehensive handbook covers the technology, characterization, application, evaluation, maintenance, and quality control of commercial analytical and preparative columns for SEC, GFC, and two closely related techniques, hydrodynamic chromatography and high osmotic pressure chromatography. Experienced column users discuss various applications in organic and aqueous mobile phases for synthetic and biopolymers, small solutes, biopharmaceutical therapeutics, and high-temperature SEC.




Handbook Of Size Exclusion Chromatography And Related Techniques


Book Description

Documenting critical advances in this rapidly evolving field, the Second Edition highlights the need for new applications and technologies that assist in the determination of molecular weight and molecular weight distributions of polymers in an accurate, efficient manner. This volume presents the latest findings from a international team of specialists and continues to inspire and extend practical applications of size exclusion chromatography (SEC). It includes six new chapters covering high-speed size exclusion chromatography, SEC of low molecular weight materials, and the extended family of techniques, from two-dimensional liquid chromatography to high osmotic pressure chromatography.







Thermal and Rheological Measurement Techniques for Nanomaterials Characterization


Book Description

Thermal and Rheological Measurement Techniques for Nanomaterials Characterization, Second Edition covers thermal and rheological measurement techniques, including their principle working methods, sample preparation and interpretation of results. This important reference is an ideal source for materials scientists and industrial engineers who are working with nanomaterials and need to know how to determine their properties and behaviors. - Outlines key characterization techniques to determine the thermal and rheological behavior of different nanomaterials - Explains how the thermal and rheological behavior of nanomaterials affect their usage - Provides a method-orientated approach that explains how to successfully use each technique




Analytical Instrumentation Handbook


Book Description

Compiled by the editor of Dekker's distinguished Chromatographic Science series, this reader-friendly reference is as a unique and stand-alone guide for anyone requiring clear instruction on the most frequently utilized analytical instrumentation techniques. More than just a catalog of commercially available instruments, the chapters are wri




Ewing's Analytical Instrumentation Handbook, Fourth Edition


Book Description

This handbook is a guide for workers in analytical chemistry who need a starting place for information about a specific instrumental technique. It gives a basic introduction to the techniques and provides leading references on the theory and methodology for an instrumental technique. This edition thoroughly expands and updates the chapters to include concepts, applications, and key references from recent literature. It also contains a new chapter on process analytical technology.