Of related interest… Trace and Ultratrace Analysis by HPLC Satinder Ahuja Written by a leading scientist in the field, this monograph provides the first definitive and technically up-to-date treatment of the theory, equipment, and applications of chemistry’s most powerful reliable analytical technique. Coverage includes an encyclopedic compendium of common substances that require trace and ultratrace analysis, and features clear discussion of such important topics as considerations for HPLC equipment, sensitive detectors, sample preparation, method development, selectivity and computer-based optimizations, optimizing detectability, and much more. 1991 (0 471-51419-5) 432 pp. High Performance Liquid Chromatography in Biotechnology Edited by William S. Hancock Analytical chemists, biochemists, and chemical engineers will find this up-to-date guide to HPLC’s recent developments essential for enhancing on-the-job technical expertise. Extensive coverage includes the broad applications of HPLC, ranging from major chromatographic techniques (including reversed phase, ion exchange, affinity and hydrophobic interaction chromatography) to specific separations such as those in monoclonal antibody and nucleic acid purification. Techniques for quality control programs and advanced technology are also discussed. 1990 (0 471-82584-0) 564 pp. Unified Separation Science J. Calvin Giddings This advanced text/monograph brings together for the first time the variety of techniques used for chemical separations by outlining their common underlying mechanisms. The mass transport phenomena underlying all separation processes are developed in a simple physical-mathematical form, facilitating analysis of alternative separation techniques and the factors integral to separation power. The first six chapters provide background material applicable to a wide range of separation methods, while the final five chapters illustrate specific techniques and methods. 1991 (0 471-52089-6) 320 pp.

Practical Thin-Layer Chromatography provides thorough coverage of the principles, practices, and applications of thin-layer chromatography (TLC) for important sample and compound types. This information is directed specifically at workers in the most active scientific fields.

The CRC Handbook of Chromatography is a series of work-bench references for scientists and researchers using chromatographic systems for the analysis of organic and inorganic compounds. This handbook is an assemblage of tables where, besides data obtained by modern separation methods, older sources often difficult to access have been included to give maximum information. For use in scientific research and routine analysis where the exact determination of plant pigments, because of their light absorbing properties and defined tasks, is necessary.

The growth in the world's nuclear industry, motivated by peaking world oil supplies, concerns about the greenhouse effect, and domestic needs for energy independence, has resulted in a heightened focus on the need for next-generation nuclear fuel-cycle technologies. Ion Exchange and Solvent Extraction: A Series of Advances, Volume 19 provides a comprehensive look at the state of the science underlying solvent extraction in its role as the most powerful separation technique for the reprocessing of commercial spent nuclear fuel. Capturing the current technology and scientific progress as it exists today and looking ahead to potential developments, the book examines the overall state of solvent extraction in reprocessing, new molecules for increased selectivity and performance, methods for predicting extractant properties, and actinide-lanthanide group separation. The contributors also explore the simultaneous extraction of radionuclides by mixing extractants, the cause and nature of third-phase formation, the effects of radiation on the solvent and its performance, analytical techniques for measuring process concentrations, new centrifugal contactors for more efficient processing, and new chemistry using novel media. The long-term vision of many professionals in the field entails a proliferation-free nuclear energy economy in which little or no waste is stored or released into the environment and all potential energy values in spent nuclear fuel are recycled. This text opens a window on that possibility, offering insight from world leaders on the cutting edge of nuclear research.

Over the past four decades, notable advancements in the theory and application of ion exchange science uncovered a wealth of knowledge that fueled new scientific pursuits and created synergies with myriad scientific endeavors. Today, pioneers continue to break new ground by synthesizing novel materials and merging the interdisciplinary fields of science and engineering. Now in its 20th volume, Ion Exchange and Solvent Extraction: A Series of Advances chronicles the ongoing changes that drive innovation in this important field. Beginning with a review of research studies that show how functionalized ion exchange polymers serve as supports to stabilize metal nanoparticles (MNPs) without forming larger than nano aggregates, the book describes the sorption of different gases from the air by ion exchange resins and fibrous ion exchangers and discusses the selective ion exchange technology capable of removing and recovering perchlorate quantitatively through stable isotope ratio analysis of chlorine and oxygen atoms, allowing for the forensic analysis of perchlorate origin in contaminated water. Later chapters demonstrate how numerical simulations coupled with small-scale bench-top experiments can help tailor particle size distribution and enhance the efficiency of each application, review dual-temperature ion exchange processes in which sorption and desorption are carried out solely by varying temperature, and present the preparation and characterization of a new composite material in which microparticles of clinoptilolite are embedded in a matrix of cross-linked chitosan, opening new opportunities for the natural biopolymer. The book concludes with the preparation, characterization, and field-level experience of an emerging class of "hybrid ion exchangers" that enhance the application opportunities of ion exchange resins. Highlighting the latest and most pivotal discoveries, the 20th volume of a field standard codifies the current state-of-the-art and lays the groundwork for the next generation of growth and expansion in the field of ion exchange.

This is the first book that comprehensively and systematically describes the new technology of hydrophilic interaction liquid chromatography (HILIC). Hydrophilic interaction chromatography is a separation technique suitable for polar and hydrophilic compounds and orthogonal to reversed phase liquid chromatography. From small organic molecules to proteins, the text explores the many applications of HILIC in the analytical field. Winner of the President's Award for Excellence, the author explains how HILIC can significantly improve analytical throughput by shortening sample preparation procedure, which is one of the bottlenecks for drug discovery and development in the pharmaceutical industry.

This book provides a detailed survey of the more powerful and less conventional HPLC detection methods available today. Addressing both theory and application, experts give their assessment of some of the most promising detection methods being developed. Long lived luminescence, near-infrared semiconductor laser fluorescence, and HPLC-mass spectrometry are among the methods discussed. In addition, an entire chapter is devoted to showing how the ultimate power of NMR may be combined with HPLC.
This book serves the needs of chromatographers who find their work restricted by the limits of conventional HPLC detection methods, and whose practical needs dictate the use of newer, more powerful methods.

Emphasis on improved quality and performance of distilled products and the demand for reduced operating costs place a heavy burden on both the personnel responsible for profitability and the manufacturing department charged with operating the processing equipment. There have been dramatic improvements in the computer software and hardware used to simulate and model the distillation process and potential response to experimentation, but mastering the art of distillation process and control still requires solid understanding of a large body of information. With a focus on achieving product purity at low cost, Distillation Control, Optimization, and Tuning: Fundamentals and Strategies highlights core concepts. These include process variables for continuous binary distillation columns and the four basic control strategies, the distillate and bottoms product quality performance objectives, and the tuning of process control loops. Without dwelling on complex mathematical descriptions, the book presents the fundamentals of process control of a distillation column as a separation and purification unit operation. It covers the concepts and functional criteria that are critical to successful implementation of process control, as well as measurement and improvement of product quality performance. It describes how process control loops for distillation columns can be tuned for stable operation, with a balance between minimum variability from setpoint changes and excellent response to load disturbances. Designed for students, engineers, technicians, and plant operators alike, this book emphasizes the prevailing need to strike a balance between the details of hypotheses and good engineering judgment. The author outlines learning objectives at the beginning of each chapter and includes chapter-end summaries, exercises, and references to help readers acquire essential knowledge and understanding. The result is a resource that will inform future decisions for the design, operation, and troubleshooting of distillation process control systems.

The use of High Performance Liquid Chromatography (HPLC) techniques in the study of enzymatic reactions has grown significantly since the publication of the first edition of this highly successful book: the role of enzymes in biological research has expanded; the application of HPLC and enzymes has extended to more disciplines; advances in separation techniques and instrumentation have increased the capability of HPLC; and the discovery of new enzymes has spawned new methods of analysis.
High Performance Liquid Chromatography in Enzymatic Analysis, Second Edition addresses these developments in its coverage of the refinements of HPLC methods and their use in a wide range of laboratory applications. It offers the same practical approach found in the first edition, incorporates a wealth of new information into existing chapters, and adds new chapters to deal with new applications, including capillary electrophoresis, forensic chemistry, microdialysis, and the polymerase chain reaction. Topics include:
* Application of HPLC to the assay of enzymatic activities
* Concepts and principles of HPLC, including the latest technological advances
* Concepts and principles of capillary electrophoresis (CE)
* Strategy for design of an HPLC/CE system for assay of enzyme activity
* Preparation of enzymatic activities from tissues and single cells
* Analysis of enzymatic activities in body fluids, including chromatobiosis
* HPLC for the identification of new enzymatic activities
* Fundamentals of the polymerase chain reaction
* HPLC in forensics
* Survey of enzymatic activities assayed by the HPLC method, including many new categories
* Multienzymesystems, including many new examples
* HPLC in the analysis of contaminated food
"It is the ability of HPLC to accomplish separations completely and rapidly that led to its original application to problems in the life sciences, particularly those related to purification. An analysis of the literature revealed that this technique was used primarily for the purification of small molecules, macromolecules such as peptides and proteins, and more recently, antibodies. This application to purification has all but dominated the use of the method, and there has been a plethora of books, symposia, and conferences on the use of HPLC for these purposes. However, it was only a matter of time before others began to look beyond and to explore the possibilities that result from the capacity to make separations quickly and efficiently." --from the preface to the First Edition
Easy to read and full of practical advice and hundreds of diagrams and examples, High Performance Liquid Chromatography in Enzymatic Analysis, Second Edition is an invaluable resource for students, researchers, and laboratory workers in analytical chemistry and biochemistry, molecular biology and cell biology, and for anyone interested in keeping up with this fast-growing field.

This detailed handbook covers different chromatographic analysis techniques and chromatographic data for compounds found in air, water, and soil, and sludge. The new edition outlines developments relevant to environmental analysis, especially when using chromatographic mass spectrometric techniques. It addresses new issues, new lines of discussion, and new findings, and develops in greater detail the aspects related to chromatographic analysis in the environment. It also includes different analytical methodologies, addresses instrumental aspects, and outlines conclusions and perspectives for the future.

This book describes modern preparative chromatography techniques and their application in the separation of natural products, synthetic intermediates, metabolites, macromolecules, and biologically active substances, e.g. new lead compounds from microorganisms and both marine and terrestrial higher organisms. The authors focus their book on the applications and aim to provide the reader with a rapid idea on how to obtain milligram or gram quantities for pure constituents from complex mixtures with minimum effort. Descriptions of apparatus and operation procedures together with numerous examples of actual separations - often widely scattered in literature - are provided. This completely revised second edition has been enlarged by chapters on macromolecule and and enantiomer separation and on preparative GC.

This book brings together contributions from global experts who have helped to facilitate the exciting and rapid advances that are taking place in microbial metabolomics. The main application of this field is in clinical and veterinary microbiology, but there is a great potential to apply metabolomics to help to better understand complex biological systems that are dominated by multiple-species microbial populations exposed to changing growth and nutritional conditions. In particular, environmental (e.g., water, soil), food (e.g., microbial spoilage, food pathogens), and agricultural and industrial applications are seen as developing areas for microbial metabolomics. As such, the book includes contributions with clinical, environmental, and industrial perspectives.

Planar Chromatography-Mass Spectrometry focuses on a relatively new approach to chemical analysis in general, and to separation science in particular. It is the first book to systemically cover the theoretical background, techniques, instrumentation, and practical applications of planar chromatography-mass spectrometry as a hyphenated tool of analytical chemistry. It also examines the high and as-yet unexploited potential of planar chromatography-mass spectrometry for analytical use in scientific investigations. This book overviews the combination of planar chromatography, a relatively simple and cost-effective separation step for determining complex mixtures of compounds, with mass spectrometry, an efficient, highly instrumental, and relatively expensive technique that enables rapid identification of separated chemical species. It covers electrophoretic-mass spectrometry methods and applications, which are considered planar chromatographic techniques and are increasingly being exploited in proteomic and molecular biology studies as well as for medical diagnostic purposes. It also provides a selection of applications, such as drug control and forensic and food analysis, including more difficult substances such as carbohydrates and lipids. The book advocates growth in using planar chromatography-mass spectrometry in laboratories that have appropriate equipment but have not yet employed the techniques in combination. It also describes the use of a relatively inexpensive commercial system that can be adopted by laboratories currently working without the coupled methodology. Aiming to improve power and efficiency when other analytical methods are inadequate, Planar Chromatography-Mass Spectrometry encourages separation science practitioners in academia and industry to combine the two methods for enhanced results.

An in-depth guide to HPLC column technology High-performance liquid chromatography and its derivative techniques have become the dominant analytical separation tools in the pharmaceutical, chemical, and food industries; environmental laboratories; and therapeutic drug monitoring. Although the column is the heart of the HPLC instrument and essential to its success, until now, no book has focused on the theory and practice of column technology. HPLC Columns provides thorough, state-of-the-art coverage of HPLC column technology for the practicing technician and academician alike. Along with a comprehensive discussion of the chemical and physical processes of the HPLC column, it includes fundamental principles, separation mechanisms and available technologies, column selection criteria, and special techniques. Special features include:

• Comprehensive overview of state-of-the-art HPLC column technology
• Explanation of the underlying principles of HPLC columns
• Methods for selecting columns
• Practical advice on using and applying columns, including examples
• Section by M. Zoubair El Fallah on methods development
• Special techniques, including preparative chromatography, continuous chromatography, and the simulated moving bed
• Troubleshooting section

This comprehensive book presents all aspects of acoustic metamaterials and phononic crystals. The emphasis is on acoustic wave propagation phenomena at interfaces such as refraction, especially unusual refractive properties and negative refraction. A thorough discussion of the mechanisms leading to such refractive phenomena includes local resonances in metamaterials and scattering in phononic crystals.

Describes the thermodynamics and kinetics underlying hydrophobic interaction chromatography of proteins. Outlines use of a kinetic model in the predictive modeling of evaporation processes that eliminates the need to know the composition and identity of the chemical constituents in the sample. Explores building and employing QSRR models in cyclodextrin modified high-performance liquid chromatography (HPLC). Reviews chemometric methods commonly paired with comprehensive 2D separations and key instrumental and preprocessing considerations.

There is a growing need for high-throughput separations in food and environmental research that are able to cope with the analysis of a large number of compounds in very complex matrices. Whereas the most common approach for solving many analytical problems has often been high-performance liquid chromatography (HPLC), the recent use of fast or ultra-fast chromatographic methods for environmental and food analysis has increased the overall sample throughput and laboratory efficiency without loss (and even with an improvement) in the resolution obtained by conventional HPLC systems.This book brings together researchers at the top of their field from across the world to discuss and analyze recent advances in fast liquid chromatography-mass spectrometry (LC-MS) methods in food and environmental analysis. First, the most novel approaches to achieve fast and ultra-fast methods as well as the use of alternative and complementary stationary phases are described. Then, recent advances in fast LC-MS methods are addressed, focusing on novel treatment procedures coupled with LC-MS, new ionization sources, high-resolution mass spectrometry, and the problematic confirmation and quantification aspects in mass spectrometry. Finally, relevant LC-MS applications in food and environmental analysis such as the analysis of pesticides, mycotoxins, food packaging contaminants, perfluorinated compounds and polyphenolic compounds are described.The scope of the book is intentionally broad and is aimed at worldwide analytical laboratories working in food and environmental applications as well as researchers in universities worldwide.

For more than four decades, scientists and researchers have relied on the Advances in Chromatography series for the most up-to-date information on a wide range of developments in chromatographic methods and applications. For Volume 53, the series editors have invited established, well-known chemists to offer cutting-edge reviews of chromatographic methods with applications in the life sciences. The clear presentation of topics and vivid illustrations for which this series has become known makes the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill.

For more than five decades, scientists and researchers have relied on the Advances in Chromatography series for the most up-to-date information on a wide range of developments in chromatographic methods and applications. For Volume 55, established, well-known chemists offer cutting-edge reviews of chromatographic methods to pay tribute to the late Eli Grushka, beloved series editor, who inspired and mentored many in the field of separation science. The clear presentation of topics and vivid illustrations for which this series has become known makes the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill.

This study investigates the role of coagulation in enhancing hydraulic performance and permeate quality of UF membranes and provides insight into options for minimizing or ideally eliminating coagulation from UF pre-treatment to SWRO. Results show that coagulation improves UF hydraulic performance mainly by reducing non-backwashable fouling of the membranes. This can be achieved at very low coagulant dose ( 0.5 mg Fe/L) by coating the membranes with sub-micron particles.
Additionally, the work highlights the applicability of UF membranes with low molecular weight cut-off as the coagulant free future of SWRO pre-treatment. Major benefits in terms of reduced environmental impact is expected when applying membranes with low molecular weight cut-off, as the need for coagulation is eliminated while ensuring longevity of downstream SWRO membranes. In general terms, the research indicates that coagulant consumption can be significantly reduced in UF pre-treatment of SWRO by optimizing operational parameters and applying alternative solutions.

For more than five decades, scientists and researchers have relied on the Advances in Chromatography series for the most up-todate information on a wide range of developments in chromatographic methods and applications. The clear presentation of topics and vivid illustrations for which this series has become known makes the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill. Key Features: Includes a chapter dedicated to Izaak Maurits Kolthoff, offering a unique look at his non-professional life as well as his impact and legacy in Analytical Chemistry. Discusses recent advances in two-dimensional liquid chromatography for the characterization of monoclonal antibodies and other therapeutic proteins. Reviews solvation processes, methodologies of their measurement, and parameters influenced solvation Explores recent advances in TLC analysis of natural colorings, determination of synthetic dyes, and determination of EU-permitted natural colors, in foods. Offers comprehensive and critical insights on the key aspects of CE-MS analysis of intact proteins

Many new methods directed to organic and inorganic syntheses of useful intermediates are being developed to specifically address green and sustainable chemistry principles. Highlighting the importance of green metrics, the Green Syntheses series focuses on how to reliably substantiate and validate the level of "greenness" of chemical processes, providing practical synthetic methodologies and metrics for a rigorous proof of "greenness." In Green Syntheses, Volume 1, the first book of its kind, the editors determine appropriate material efficiency green metrics and use them to compare syntheses provided by the chapter authors with those previously published. Presenting a new concept in green chemistry, this book demonstrates what future publications might look like if green principles are followed and also incorporate the important ethical aspect of supplying rigorous procedures in laboratory practice and evidence of greenness of a given synthesis protocol using metrics analysis. This inaugural volume initiates the much-needed transition from stating the 12 guiding principles on the philosophy of green chemistry to the actualization and verification of it. The book addresses primarily the issue of material efficiency metrics, which measure the amount of waste produced relative to desired product. In each contributed example, full experimental details are given showing all quantities of materials used in the procedure. Authors discuss the green merits of their protocols in conjunction with the results of a thorough metrics analysis, allowing for in-depth discussion of insights about synthesis strategy and performance characteristics of the new and prior cited plans.

This volume presents recent progress and perspectives in multi-photon processes and spectroscopy of atoms, ions, molecules and solids. The subjects in the series cover the experimental and theoretical investigations in the interdisciplinary research fields of natural science including chemistry, physics, bioscience and material science.This volume is the latest volume in a series that is a pioneer in compiling review articles of nonlinear interactions of photons and matter. It has made an essential contribution to the development and promotion of the related research fields. In view of the rapid growth in multi-photon processes and multi-photon spectroscopy, care has been taken to ensure that the review articles contained in the series are readable not only by active researchers but also those who are not yet experts but intend to enter the field.

Presenting the latest developments in the field for more than four decades, the Advances in Chromatography series is relied on by scientists and researchers for the most up-to-date information on a wide range of chromatographic methods and applications. Volume 52 continues this tradition with contributions by established, well-known chemists, offering cutting-edge reviews of chromatographic methods with applications in the life sciences. Featured topics include The history, development, and theory behind aerosol-based detectors Protein and peptide biomarkers that are chromatographic endpoints measured in biological fluids and tissues, such as serum, urine, and tissue biopsies Multisegment linear gradient optimization strategy in reversed-phase and hydrophilic interaction chromatographic systems Enantioselective gas chromatography performed using three distinct chiral stationary phases based on hydrogen bonding, metal ion complexation, and inclusion Analysis of the dynamic phenomena of liquid chromatographic systems with six typical reactions in the mobile phase Providing a clear presentation of topics and vivid illustrations for which this series has become known, the latest volume makes the material accessible and engaging to analytical, biochemical, organic, polymer, and pharmaceutical chemists at all levels of technical skill.

The third edition of this guidebook provides all the basic applications needed to practice thin layer chromatography (TLC). New material includes the latest techniques on sample preparation and zone detection, the hybridization of TLC with high performance liquid chromatography (HPTLC) as it has been developed in the last few years, emphasis on numerous applications of HPTLC involving pharmaceuticals and drugs, plus the fundamental studies of mechanisms, theories and optimization of TLC.