Chiral Separation Techniques

A Practical Approach
Author: Ganapathy Subramanian
Publisher: John Wiley & Sons
ISBN: 352761172X
Category: Science
Page: 641
View: 5121
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Thoroughly revised, with either entirely new or completely updated contents, this is a practical manual for the small and large-scale preparation of enantiomerically pure products. The result is a vital resource for meeting the highest purity standards in the manufacture of chiral pharmaceuticals, food additives and related compounds. All the approaches covered here are highly relevant to modern manufacturing and quality control schemes in the pharmaceutical and biotech industries, addressing the increasingly important issue of drug safety in view of tougher regulatory standards worldwide.

A practical approach to chiral separations by liquid chromatography


Author: G. Subramanian
Publisher: Wiley-VCH
ISBN: N.A
Category: Science
Page: 405
View: 9641
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Both analytical and preparative-scale enantioseparation techniques are covered in a down-to-earth practical way. The most important aspects of design, economics and safety are considered with emphasis on current European and North American legislation. In addition, the theory of chiral separation is covered in sufficient detail to guide the practising chromatographer interested in developing new techniques. A team of experts from academic and industrial laboratories throughout the world have compiled their findings and experience to make this book an exceptionally timely and unique contribution to the field.

Chiral Recognition in Separation Methods

Mechanisms and Applications
Author: Alain Berthod
Publisher: Springer Science & Business Media
ISBN: 9783642124457
Category: Science
Page: 337
View: 6920
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What drives a scientist to edit a book on a speci c scienti c subject such as chiral mechanisms in separation methods? Until December 2005, the journal Analytical Chemistry of the American Chemical Society (Washington, DC) had an A-page section that was dedicated to simple and clear presentations of the most recent te- niques or the state of the art in a particular eld or topic. The “A-page” section was prepared for a broad audience of chemists including industrial professionals, s- dents as well as academics looking for information outside their eld of expertise. 1 Daniel W. Armstrong, one of the editors of this journal and a twenty-year+ long friend, invited me to present my view on chiral recognition mechanisms in a simple and clear way in an “A-page” article. In 2006, the “A-page” section was maintained as the rst articles at the beginning of each rst bi-monthly issue but the pagination was no longer page distinguished from the regular research articles published by the journal. During the time between the invitation and the submission, the A-page section was integrated into the rest of the journal and the article appeared as (2006) Anal Chem (78):2093–2099.

Chiral Separations by Liquid Chromatography


Author: Satinder Ahuja
Publisher: Amer Chemical Society
ISBN: 9780841221161
Category: Science
Page: 239
View: 5218
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A definitive reference for researchers working on problems involving chirality. Presenting state-of-the-art information, this volume covers all the major modes of separation and offers contributions from the leading researchers who developed these techniques. Four chapters provide a detailed review of the commonly used columns: brush type, cyclodextrin, polysaccaride carbonate, and protein. Many of the papers focus on HPLC, a technique which is also ideally suited for large scale preparation of optical isomers. In addition, the volume provides significant discussion on the use of chiral discriminators or selectors.

Chiral Separation Methods for Pharmaceutical and Biotechnological Products


Author: Satinder Ahuja
Publisher: John Wiley & Sons
ISBN: 9781118097755
Category: Science
Page: 495
View: 9554
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Discusses chiral separations and offers guidance for selecting the optimum method for desired results Chiral separations represent the most intriguing and, by some measures, most difficultseparations of chemical compounds. This book provides researchers and students an under-standing of chiral separations and offers a convenient route to selecting the best separation method, saving considerable time and cost in product development. Considering chiral separations in the biotechnological and pharmaceutical industries, as well as for food applications, Dr. Ahuja provides insights into a broad range of topics. Opening with a broad overview of chiral separations, regulatory considerations in drug product development, and basic issues in method development, the book: Covers a variety of modern methods such as gas chromatography, high performance liquid chromatography, supercritical fluid chromatography, and capillary electrophoresis Deals with the impact of chirality on the biological activity of small and large molecules Provides detailed information on useful chiral stationary phases (CSPs) for HPLC Includes handy information on selection of an appropriate CSP, including mechanistic studies Offers strategies for fast method development with HPLC, SFC, and CE Discusses preparatory methods utilized in the pharmaceutical industry With in-depth discussions of the current state of the field as well as suggestions to assist future developments, Chiral Separation Methods for Pharmaceutical and Biotechnological Products is an essential text for laboratory investigators, managers, and regulators who are involved in chiral separations in the pharmaceutical industry, as well as students preparing for careers in these fields.

Stereoselective Synthesis of Drugs and Natural Products, 2 Volume Set


Author: Vasyl Andrushko,Natalia Andrushko
Publisher: John Wiley & Sons
ISBN: 1118628330
Category: Science
Page: 1836
View: 9518
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Emphasizing synthetic strategy and practice, Stereoselective Synthesis of Drugs and Natural Products features experimental procedures for stereoselective synthetic reactions applicable to drug targets and natural products. Compiling material from leading contributors into one cohesive resource, this practical resource on synthetic methodology, reaction mechanisms, and applications for medicinal chemistry and drug discovery explores strategy and interdisciplinary work, laboratory synthesis for natural products, the preparative aspects of stereoselective synthesis for drugs, natural products, and potential biologically active compounds. The text also features experimental procedures for the different reaction methods covered.

Chiral Separations By Liquid Chromatography And Related Technologies


Author: Hassan Y. Aboul-Enein,Imran Ali
Publisher: CRC Press
ISBN: 9780203911112
Category: Science
Page: 400
View: 8530
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Unique in its systematic and detailed description of the various types, structures, and properties of chiral stationary phases (CSPs) and their preparation, application, and future scope, this volume highlights an assortment of liquid chromatographic approaches, including sub- and super-critical fluid chromatography, capillary electrochromatography, and thin layer chromatography. Readers will find: viable optimization techniques for enantiomeric resolution on various types of CSPs and new strategies in liquid chromatography and related technologies of chiral separations. It is a valuable resource filled with 1200 of the most recent and relevant literature citations.

Chiral Analysis

Advances in Spectroscopy, Chromatography and Emerging Methods
Author: P.L. Polavarapu
Publisher: Elsevier
ISBN: 0444640282
Category: Science
Page: 790
View: 4160
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Chiral Analysis: Advances in Spectroscopy, Chromatography and Emerging Methods, Second Edition covers an important area of analytical chemistry of relevance to a wide variety of scientific professionals, including chemistry graduate students, analytical chemists, organic chemists, professionals in the pharmaceutical industry, and others with an interest in chirality and chiral analysis. This thoroughly revised second edition covers several new, important areas of chiral analysis that have emerged since the first edition. Three of the new methods provide higher sensitivity than can be realized with the current methods and are expected to become mainstream applications: cavity based methods offer vastly higher sensitivity than conventional polarimetric methods, microwave chiral detection provides unsurpassed sensitivity for identifying diastereomers, and the rotating electric field method offers a competing new approach for the separation of enantiomers. Another topic, chirality in extraterrestrial life, has not been discussed in any other book and is important for understanding the origin of life. Offers the only book to cover both spectroscopic and separation methods in a single volume Provides an up-to-date and detailed review of the various techniques available, including new techniques that have emerged since the first edition Includes contributions from a range of leading experts in the field, now edited by award-winning chirality researcher Prasad Polavarapu

A Practical Handbook of Preparative HPLC


Author: Donald A Wellings
Publisher: Elsevier
ISBN: 9780080458854
Category: Technology & Engineering
Page: 176
View: 2414
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This book is a distillation of twenty years of practical experience of the high pressure liquid chromatography (HPLC) process. Deliberately steering clear of complex theoretical aspects, this book concentrates on the everyday problems associated with the technique, making it perfect for frequent use in the laboratory and for those in the pharmaceutical, agrochemical and biotechnology industries for the analysis and purification of drugs, small molecules, proteins and DNA. This book... •Provides practical, hands-on advice based on years of experience •Will help ensure optimal design, equipment and separation results for your particular task •Presents system layouts from laboratory to process scale •Will help you to devise or improve record-keeping and documentation systems ·Provides practical, hands-on advice based on years of experience ·Will help ensure optimal design, equipment and separation results for your particular task ·Presents system layouts from laboratory to process scale ·Will help you to devise or improve record-keeping and documentation systems

Thermodynamic and Kinetic Characterization of Chiral Separations with ß-cyclodextrin Stationary Phase


Author: Xiaoping Li
Publisher: N.A
ISBN: N.A
Category: Chirality
Page: 572
View: 2244
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HPLC

A Practical User's Guide
Author: Marvin C. McMaster
Publisher: John Wiley & Sons
ISBN: 0470079088
Category: Science
Page: 256
View: 5238
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This Second Edition of the classic handbook details how to set up an HPLC system that capitalizes on the latest innovations. It covers new techniques in high-temperature, micro-flow, and ultra-fast chromatography, the linking of an HPLC to a mass spectrometer, and more. Complete with a CD-ROM and appendices, this guide has everything chromatographers need to know to confidently separate, identify, purify, and quantify compounds. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.

Thin Layer Chromatography in Chiral Separations and Analysis


Author: Teresa Kowalska,Joseph Sherma
Publisher: CRC Press
ISBN: 9780849343964
Category: Science
Page: 436
View: 5987
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Thin layer chromatography (TLC) is well suited for performing enantioseparations for research as well as larger-scale applications. A fast, inexpensive, and versatile separation technique, there are many practical considerations that contribute to its effectiveness. Thin Layer Chromatography in Chiral Separations and Analysis is the first book to focus solely on the theory, capabilities, and applications of TLC for direct and indirect enantioseparations. The first part of the book examines the fundamental principles of chirality and TLC. It describes the necessary materials, laboratory equipment, procedures, and strategies for the separation, quantification, isolation, and analysis of chiral compounds. The second part evaluates the real-world enantioseparations and densitometric analyses. Emphasizing pharmaceutical applications, the book discusses chiral separation mechanisms and methods for analyzing the chiral purity of diastereoisomers, amino acids, beta-blockers, and NSAIDS. Topics also include commercial stationary phases and chiral modifiers of mobile phases. Thin Layer Chromatography in Chiral Separations and Analysis presents a unified perspective of theory and experimental details underlying the collective developments in the field. The book offers scientists in a variety of disciplines and levels of expertise a complete guide to understanding the current and potential applications of chiral TLC.

Introduction to Modern Liquid Chromatography


Author: Lloyd R. Snyder,Joseph J. Kirkland,John W. Dolan
Publisher: John Wiley & Sons
ISBN: 1118210395
Category: Science
Page: 960
View: 6740
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The latest edition of the authoritative reference to HPLC High-performance liquid chromatography (HPLC) is today the leading technique for chemical analysis and related applications, with an ability to separate, analyze, and/or purify virtually any sample. Snyder and Kirkland's Introduction to Modern Liquid Chromatography has long represented the premier reference to HPLC. This Third Edition, with John Dolan as added coauthor, addresses important improvements in columns and equipment, as well as major advances in our understanding of HPLC separation, our ability to solve problems that were troublesome in the past, and the application of HPLC for new kinds of samples. This carefully considered Third Edition maintains the strengths of the previous edition while significantly modifying its organization in light of recent research and experience. The text begins by introducing the reader to HPLC, its use in relation to other modern separation techniques, and its history, then leads into such specific topics as: The basis of HPLC separation and the general effects of different experimental conditions Equipment and detection The column—the "heart" of the HPLC system Reversed-phase separation, normal-phase chromatography, gradient elution, two-dimensional separation, and other techniques Computer simulation, qualitative and quantitative analysis, and method validation and quality control The separation of large molecules, including both biological and synthetic polymers Chiral separations, preparative separations, and sample preparation Systematic development of HPLC separations—new to this edition Troubleshooting tricks, techniques, and case studies for both equipment and chromatograms Designed to fulfill the needs of the full range of HPLC users, from novices to experts, Introduction to Modern Liquid Chromatography, Third Edition offers the most up-to-date, comprehensive, and accessible survey of HPLC methods and applications available.

Practical HPLC Method Development


Author: Lloyd R. Snyder,Joseph J. Kirkland,Joseph L. Glajch
Publisher: John Wiley & Sons
ISBN: 1118591518
Category: Science
Page: 800
View: 7896
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This revision brings the reader completely up to date on the evolving methods associated with increasingly more complex sample types analyzed using high-performance liquid chromatography, or HPLC. The book also incorporates updated discussions of many of the fundamental components of HPLC systems and practical issues associated with the use of this analytical method. This edition includes new or expanded treatments of sample preparation, computer assisted method development, as well as biochemical samples, and chiral separations.

Chiral Analysis


Author: Kenneth W. Busch,Marianna A. Busch
Publisher: Elsevier Science Limited
ISBN: N.A
Category: Science
Page: 704
View: 7045
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Chiral Analysis covers an important area of analytical chemistry of relevance to a wide variety of scientific professionals. The target audience is scientific professionals with an undergraduate background in chemistry or a related discipline, specifically organic chemists, researchers in drug discovery, pharmaceutical researchers involved with process analysis or combinatorial libraries, and graduate students in chemistry. Chapters have been written with the nonspecialist in mind so as to be self-contained. * Broad coverage - spectroscopic and separation methods covered in a single volume * Up-to-date and detailed review of the various techniques available and/or under development in this field * Contributions from leading experts in the field

Chromatography

fundamentals and applications of chromatography and related differential migration methods
Author: Erich Heftmann
Publisher: Elsevier Science Ltd
ISBN: N.A
Category: Science
Page: 1156
View: 4355
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Chromatography has emerged as the most important and versatile analytical method. The book is not only an updated version of Heftmann's classical text, but it covers areas of future importance, such as microfluidics and computer resources. Under his experienced guidance, authorities in each field have contributed their practical experience to an integrated treatment of modern micro analysis. In Part A the theoretical basis of individual separation methods is explained and the technical aspects are illustrated. It includes the theory of gas and liquid chromatography as well as specific chromatographic techniques, such as size-exclusion, planar, ion, and affinity chromatography as well as various electrokinetic separation techniques. Microfluidics are covered fotr the first time and useful sources of analytical instruments are listed and evaluated. Part B brings the traditional field of application up to date. These include amino acids and proteins, nucleic acids and their constituents, lipid, and carbohydrates. Special chapters are devoted to the most important areas of application: drug and environmental analysis. Forensic and phytochemical applications are covered for the first time. Together with an overview of computer resources, the subject index allows novices as well as experts to obtain rapid and authoritative guidance to analytical problems, such as choice of methods and optimization of techniques and instrumentation.

Handbook of Advanced Chromatography /Mass Spectrometry Techniques


Author: Michal Holcapek,Wm. Craig Byrdwell
Publisher: Elsevier
ISBN: 0128117338
Category: Science
Page: 520
View: 6487
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Handbook of Advanced Chromatography /Mass Spectrometry Techniques is a compendium of new and advanced analytical techniques that have been developed in recent years for analysis of all types of molecules in a variety of complex matrices, from foods to fuel to pharmaceuticals and more. Focusing on areas that are becoming widely used or growing rapidly, this is a comprehensive volume that describes both theoretical and practical aspects of advanced methods for analysis. Written by authors who have published the foundational works in the field, the chapters have an emphasis on lipids, but reach a broader audience by including advanced analytical techniques applied to a variety of fields. Handbook of Advanced Chromatography / Mass Spectrometry Techniques is the ideal reference for those just entering the analytical fields covered, but also for those experienced analysts who want a combination of an overview of the techniques plus specific and pragmatic details not often covered in journal reports. The authors provide, in one source, a synthesis of knowledge that is scattered across a multitude of literature articles. The combination of pragmatic hints and tips with theoretical concepts and demonstrated applications provides both breadth and depth to produce a valuable and enduring reference manual. It is well suited for advanced analytical instrumentation students as well as for analysts seeking additional knowledge or a deeper understanding of familiar techniques. Includes UHPLC, HILIC, nano-liquid chromatographic separations, two-dimensional LC-MS (LCxLC), multiple parallel MS, 2D-GC (GCxGC) methodologies for lipids analysis, and more Contains both practical and theoretical knowledge, providing core understanding for implementing modern chromatographic and mass spectrometric techniques Presents chapters on the most popular and fastest-growing new techniques being implemented in diverse areas of research

Separation Methods in Drug Synthesis and Purification


Author: Klara Valko
Publisher: Elsevier
ISBN: 9780080541099
Category: Science
Page: 612
View: 2454
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Separation Methods in Drug Synthesis and Purification

Supercritical Fluid Chromatography


Author: Colin F. Poole
Publisher: Elsevier
ISBN: 0128093676
Category: Science
Page: 572
View: 6445
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Supercritical fluid chromatography (SFC) is a rapidly developing laboratory technique for the separation and identification of compounds in mixtures. Significant improvements in instrumentation have rekindled interest in SFC in recent years and enhanced its standing in the scientific community. Many scientists are familiar with column liquid chromatography and its strengths and weaknesses, but the possibilities brought to the table by SFC are less well-known and are underappreciated. Supercritical Fluid Chromatography is a thorough and encompassing reference that defines the concept of contemporary practice in SFC and how it should be implemented in laboratory science. Given the changes that have taken place in SFC, this book presents contemporary aspects and applications of the technique and introduces SFC as a natural solution in the larger field of separation science. The focus on state-of-the-art instrumental SFC distinguishes this work as the go-to reference work for those interested in implementing the technique at an advanced level. Edited and authored by world-leading chromatography experts Provides comprehensive coverage of SFC in a single source Extensive referencing facilitates identification of key research developments More than 200 figures and tables aid in the retention of key concepts

Chiral Separations

Methods and Protocols
Author: Gerald Gübitz,Martin G. Schmid
Publisher: Springer Science & Business Media
ISBN: 1592596487
Category: Science
Page: 448
View: 9131
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Prominent experts from around the world detail the chromatographic and electroseparation techniques they have developed for chiral separations on an analytical scale. Described in step-by-step detail to ensure successful experimental results, the procedures are presented as either general methods or as specific applications to substance classes and special compounds, with emphasis on high performance liquid chromatography and capillary electrophoresis techniques, but also including thin layer chromotographic, gas chromatographic, supercritical fluid chromatographic as well as recent electrochromotographic techniques.