Chiral separation techniques

a practical approach
Author: G. Subramanian
Publisher: Vch Verlagsgesellschaft Mbh
ISBN: 9783527298754
Category: Science
Page: 350
View: 4708
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This is a completely revised and updated sequel to 'A Practical Approach to Chiral Separations by Liquid Chromatography' by the same editor. The scope has been extended to further chiral separation techniques like electrophoresis, membrane separations, or biological assays. More emphasis is put on preparative separation techniques From reviews of the previous edition: "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" --European Journal of Drug Metabolis "The dense mass of information contained in this book will make it a valuable resource..." --Chemical Engineering Researc "... this is a worthwhile addition to the expanding chiral literature and the book should be of value to those working in this field" --The Analyst

Chiral Separation Techniques

A Practical Approach
Author: Ganapathy Subramanian
Publisher: John Wiley & Sons
ISBN: 352761172X
Category: Science
Page: 641
View: 1832
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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: 4072
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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: 7232
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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.

HPLC richtig optimiert

Ein Handbuch für Praktiker
Author: Stavros Kromidas
Publisher: John Wiley & Sons
ISBN: 3527660356
Category: Science
Page: 810
View: 8523
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Neben der Methodenentwicklung ist die Optimierung bestehender Methoden eine zentrale Aufgabe im HPLC-Labor. Eine Aufgabe, die heute in immer kurzerer Zeit und kosteneffizient erledigt werden muss. Das Handbuch bietet eine fundierte Hilfe, um diese Herausforderung noch besser zu meistern. International renommierte Autoren behandeln sowohl die allgemeinen Grundlagen und Strategien der Optimierung als auch die spezifischen Aspekte der unterschiedlichen Techniken wie RP-HPLC, NP-HPLC, Micro- und Nano-HPLC sowie der Kopplungstechniken wie LC-MS. Auch die richtige Saulenauswahl sowie Enantiomerentrennungen gehoren zu den behandelten Themen. Die Autoren liefern konkrete, praktische Tipps ebenso wie relevante Hintergrundinformationen. Sie bieten daruber hinaus Einblicke in die Optimierungspraxis sieben international renommierter Firmen verschiedener Branchen. Einige Beitrage stellen die Anwendung gangiger Optimierungssoftware wie DryLab oder ChromSword dar. Das ganze wird abgerundet durch praxisnahe Berichte erfahrener Anwender aus den verschiedenen Anwendungsgebieten, inbesondere aus den Life Sciences, wie beispielsweise Proteomics oder Pharmaentwicklung. Alle Beitrage sind in einem auf das Wesentliche konzentrierten und anwendungsnahen Stil geschrieben. Der Aufbau des Buches mit abgeschlossenen Kapiteln erleichtert das gezielte Nachschlagen.

Stereoselective Synthesis of Drugs and Natural Products


Author: Vasyl Andrushko,Natalia Andrushko
Publisher: John Wiley & Sons
ISBN: 1118628330
Category: Science
Page: 1836
View: 5647
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Brings together the best tested and proven stereoselective synthetic methods Both the chemical and pharmaceutical industries are increasingly dependent on stereoselective synthetic methods and strategies for the generation of new chiral drugs and natural products that offer specific 3-D structures. With the publication of Stereoselective Synthesis of Drugs and Natural Products, researchers can turn to this comprehensive two-volume work to guide them through all the core methods for the synthesis of chiral drugs and natural products. Stereoselective Synthesis of Drugs and Natural Products features contributions from an international team of synthetic chemists and pharmaceutical and natural product researchers. These authors have reviewed the tremendous body of literature in the field in order to compile a set of reliable, tested, and proven methods alongside step-by-step guidance. This practical resource not only explores synthetic methodology, but also reaction mechanisms and applications in medicinal chemistry and drug discovery. The publication begins with an introductory chapter covering general principles and methodologies, nomenclature, and strategies of stereoselective synthesis. Next, it is divided into three parts: Part One: General Methods and Strategies Part Two: Stereoselective Synthesis by Bond Formation including C-C bond formation C-H bond formation C-O bond formation C-N bond formation Other C-heteroatom formation and other bond formation Part Three: Methods of Analysis and Chiral Separation References in every chapter serve as a gateway to the literature in the field. With this publication as their guide, chemists involved in the stereoselective synthesis of drugs and natural products now have a single, expertly edited source for all the methods they need.

Chiral Separation Methods for Pharmaceutical and Biotechnological Products


Author: Satinder Ahuja
Publisher: John Wiley & Sons
ISBN: 9781118097755
Category: Science
Page: 400
View: 1152
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Discusses chiral separations and offers guidance for selectingthe optimum method for desired results Chiral separations represent the most intriguing and, by somemeasures, most difficultseparations of chemical compounds. Thisbook provides researchers and students an under-standing of chiralseparations and offers a convenient route to selecting the bestseparation method, saving considerable time and cost in productdevelopment. Considering chiral separations in the biotechnological andpharmaceutical industries, as well as for food applications, Dr.Ahuja provides insights into a broad range of topics. Opening witha broad overview of chiral separations, regulatory considerationsin drug product development, and basic issues in methoddevelopment, the book: Covers a variety of modern methods such as gas chromatography,high performance liquid chromatography, supercritical fluidchromatography, and capillary electrophoresis Deals with the impact of chirality on the biological activity ofsmall 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 pharmaceuticalindustry With in-depth discussions of the current state of the field aswell as suggestions to assist future developments, ChiralSeparation Methods for Pharmaceutical and BiotechnologicalProducts is an essential text for laboratory investigators,managers, and regulators who are involved in chiral separations inthe pharmaceutical industry, as well as students preparing forcareers in these fields.

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: 5767
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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 Separations

Methods and Protocols
Author: Gerald Gübitz,Martin G. Schmid
Publisher: Springer Science & Business Media
ISBN: 1592596487
Category: Science
Page: 448
View: 2401
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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.

Seminars in Organic Synthesis

XXVIII Summer School "A. Corbella"
Author: Gabriele Renzi,Enrico Marcantoni
Publisher: Royal Society of Chemistry
ISBN: 9788886208277
Category: Science
Page: 408
View: 6297
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The latest volume in this respected series encompasses subjects as diverse as materials with optical or biological properties, chiral molecules, advanced physical methods in organic synthesis and non-classical synthetic methodologies. Critical surveys are presented on: total synthesis of natural products; organometallic compounds in organic synthesis; the introduction and transformation of functional groups; and solid supported synthesis. The accompanying CD-ROM provides pdf files of the articles included in the book. This volume will be an invaluable reference source for students and researchers in both academia and industry.

Gas Chromatography

A Practical Approach
Author: P. J. Baugh
Publisher: Oxford University Press
ISBN: 0199632715
Category: Philosophy
Page: 426
View: 9982
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This volume covers one of the most important and widely used analytical techniques in the chemical, biological and clinical/medical fields. The book also covers the uses of this technique in the environmental and industrial areas of analysis.

Chiral Environmental Pollutants

Trace Analysis and Ecotoxicology
Author: R. Kallenborn,H. Hühnerfuss
Publisher: Springer Science & Business Media
ISBN: 9783540664239
Category: Science
Page: 210
View: 2247
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This monograph contains a survey on the role of chirality in ecotoxicological processes. The focus is on environmental trace analysis. Areas such as toxicology, ecotoxicology, synthetic chemistry, biology, and physics are also covered in detail in order to explain the different properties of enantiomers in environmental samples. This monograph delivers a comprehensive survey for environmental trace analysts, analytical chemists, ecotoxicologists, food scientists and experienced lab workers.

Stereoselective Synthesis

A Practical Approach
Author: Mihály Nógrádi
Publisher: John Wiley & Sons
ISBN: 3527615687
Category: Science
Page: 386
View: 9048
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The state-of-the-art in stereoselective synthesis! Thoroughly revised and updated, this enlarged second edition offers a plethora of valuable information on methods and reagents in stereoselective synthesis. Methods have been selected for high efficiency and selectivity; mechanistic aspects are treated succinctly, with a strong emphasis on practical applications. For this new edition, material has been added on * homogeneous diastereoselective hydrogenations * enantioselective oxidations * novel, efficient chiral auxiliaries Much of the information given is presented in figures and tables, which makes the book a valuable reference work for the practically minded organic chemist. From reviews of the first edition: 'The extensive material in the volume should prove particularly useful to anyone involved in synthetic chemistry or teaching a course in organic chemistry.' Journal of Medicinal Chemistry 'With nearly 1400 references cited, the book contains a wealth of information and should be a useful addition to the chemist's library.' The American Scientist

Der HPLC-Experte

Möglichkeiten und Grenzen der modernen HPLC
Author: Stavros Kromidas
Publisher: John Wiley & Sons
ISBN: 3527676589
Category: Science
Page: 446
View: 2557
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Der rasanten Entwicklung auf dem Gebiet der HPLC wird mit diesem Buch Rechnung getragen: Von Gradientenoptimierung über Kopplungs- und 2D-Techniken bis zu Dokumentation und Informationsbeschaffung - aktuell und kompakt geschrieben von Praktikern für Praktiker. Inhalt: 1 LC/MS-Kopplung 1.1 Stand der Technik in der LC/MS-Kopplung 1.2 Technische Aspekte und Fallstricke der LC/MS-Kopplung 1.3 LC/MS-Kopplung - ein praktisches Beispiel aus der Ionenchromatographie 2 HPLC-GC-Kopplung in der Praxis; Theorie, Applikationsbeispiele und Ausblick 3 Optimisierungsstrategien in der RP-HPLC 4 Der Gradient in der RP-Chromatographie 4.1 Aspekte der Gradienten-Optimierung 4.2 Vorhersagen von Gradienten 5 Vergleich und Auswahl von modernen HPLC-Säulen 6 Trenntechniken in der Biochromatographie 7 Moderne HPLC-Softwareprogramme - Eigenschaften, Vergleich, Ausblick 8 Möglichkeiten der "richtigen" Integration heute 9 HPLC im reglementierten Bereich 9.1 Intelligente Dokumentationen 9.2 Tipps für eine gelungene FDA-Inspektion 10 Effiziente Informationsbeschaffung im Zeitalter von Web 2.0 am Beispiel der HPLC 11 Trends in der Detektionstechnik

Chromatographic Separations of Stereoisomers


Author: Rex W. Souter
Publisher: CRC Press
ISBN: 9780849361272
Category: Medical
Page: 256
View: 1455
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Provides current knowledge about separation and interactions of asymmetric molecules, as well as experimental and commercial ma-terials such as columns, instruments, and derivatization reagents. Extensive applications are tabulated by both chromato-graphic technique and compound class, and discussions of recent special topics are useful in planning new work. This unique volume organizes most of the significant, currently available knowledge re-garding the chromatographic separations of stereoisomers. Both diastereomers and the more difficult, controversial area of enan-tiomers are covered in depth with respect to GC, HPLC, and classi-cal chromatographic techniques. Analytical, organic, pharmaceuti-cal, and other chemists as well as pharmacologists and bio-chemists are among those whose work appears in the more than 800 references cite.

Gas chromatography

a practical course
Author: Gerhard Schomburg
Publisher: Vch Pub
ISBN: 9783527278794
Category: Science
Page: 320
View: 6510
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This practical approach to gas chromatography is a fast and effective introduction for the beginner and a guide for the professional, bringing him up-to-date with modern techniques. The beginner will appreciate the clear and concise presentation of background theory, and the professional will benefit from the depiction of the tricks and traps of the 2real world2 of gas chromatography. A special chapter shows and explains in detail 40 chromatograms. Thus the book can also be used for practical courses. The author has been involved in the development of most modern GC techniques and awarded numerous prizes in Europe and the United States.

Practical Thin-Layer Chromatography

A Multidisciplinary Approach
Author: Bernard Fried,Joseph Sherma
Publisher: CRC Press
ISBN: 9780849326608
Category: Science
Page: 288
View: 7235
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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.

HPLC

Practical and Industrial Applications
Author: Joel K. Swadesh
Publisher: CRC Press
ISBN: 9780849326820
Category: Medical
Page: 384
View: 9271
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High performance liquid chromatography (HPLC) is a technique used in diverse laboratory and industrial settings for the separation of components of complex mixtures. HPLC: Practical and Industrial Applications is a trouble-shooting, problem-solving guide for scientists, engineers, and technicians who use HPLC in their day-to-day work. It provides the answers to specific problems and includes practical case studies. This case history approach to chromatography is an effective teaching tool and clearly illustrates how to use techniques such as reversed phase chromatography, ion exchange chromatography, gel permeation chromatography, and capillary electrophoresis. The book is organized to facilitate rapid understanding for those working with a particular area of chromatography: Introduces the reader to instrumentation, reviews basic chromatographic theory, and presents a brief survey of absorbance fluorescence and refractive index detectors. Provides a broad view of the role of the analytical laboratory in an industrial organization. Offers suggestions on optimizing the utilization of personnel and work flow in the laboratory. Covers process sampling and analysis · Describes process chromatography. The remaining chapters discuss specialties within separations technology, including an outline of the key features of each technique, a thorough bibliography, a list of precedents, and detailed examples of one or more applications presented from the viewpoint of industrial and basic scientists. Specialty detectors are also described. HPLC: Practical and Industrial Applications is an essential reference for those working in the industrial sector, as well as scientists, students, technicians interested in learning HPLC methods.

Handbook of Chemical and Biological Plant Analytical Methods, 3 Volume Set


Author: Shilin Chen,Andrew Marston,Hermann Stuppner
Publisher: John Wiley & Sons
ISBN: 1118874986
Category: Medical
Page: 1176
View: 6992
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Plants and plant-derived compounds and drugs are becoming moreand more popular with increasing numbers of scientists researchingplant analysis. The quality control of herbal drugs is alsobecoming essential to avoid severe health problems, and in thefuture many more new drugs will be developed from plantsources. This three-volume Handbook, featuring 47 detailed review articles,is unique as it deals with chemical and biological methodologiesfor plant analysis. It presents the most important and mostaccurate methods which are available for plant analysis. This comprehensive work is divided into six sections asfollows: Sample preparation and identification – discussingplant selection and collection, followed by extraction and samplepreparation methodologies. Extraction and sample preparation methodologies Instrumentation for chemical analysis - severalinstrumentations for chemical plant analysis are presented with anemphasis on hyphenated techniques, e.g. the coupling between HPLCand mass spectroscometry, and HPLC with NMR. Strategies for selective classes of compounds –coverage of the most interesting classes of compounds such aspolysaccharides, saponins, cardiotonic glycosides, alkaloids,terpenoids, lipids, volatile compounds and polyphenols (flavonoids, xanthones, coumarins, naphthoquinones, anthraquinones,proanthocyanidins, etc.). Biological Analysis - includes phenotyping, DNA barcodingtechniques, transcriptome analysis , microarray, metabolomics andproteomics. Drugs from Plants – covers the screening of plantextracts and strategies for the quick discovery of novelbioactive natural products. Safety assessment of herbal drugs ishighly dependent on outstanding chromatographic and spectroscopicmethods which are also featured here. This Handbook introduces to scientists involved in plant studiesthe current knowledge of methodologies in various fields ofchemically- and biochemically-related topics in plantresearch. The content from this Handbook will publish online within theEncyclopedia of Analytical Chemistry via Wiley Online Library: ahref="http://www.wileyonlinelibrary.com/ref/eac"http://www.wileyonlinelibrary.com/ref/eac/a Benefit from the introductory offer, valid until 30 November2014! Introductory price: £425.00 / $695.00 /€550.00 List price thereafter: £495.00 / $795.00 / €640.00

Enantioselective Chemical Synthesis

Methods, Logic, and Practice
Author: Elias J. Corey,Laszlo Kurti
Publisher: Elsevier
ISBN: 0128001518
Category: Science
Page: 334
View: 8258
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Written by world-renowned and best-selling experts, Nobel Laureate E. J. Corey and Laszlo Kurti, Enantioselective Chemical Synthesis offers an authoritative and comprehensive overview of the field’s progress; the processes and tools for key formations; future development for complex, stereocontrolled (enantiomeric or diastereoisomeric) molecules; and valuable examples of multi-step syntheses. Utilizing a color-coded scheme to illustrate chemical transformations, Enantioselective Chemical Synthesis provides clear explanation and guidance through vital asymmetrical syntheses and insight into the next steps for the field. Researchers, professionals, and academics will benefit from this valuable, thorough, and unique resource. In Part I, the authors present clearly, comprehensively and concisely the most useful enantioselective processes available to synthetic chemists. Part II provides an extensive discussion of the most logical ways to apply these new enantioselective methods to the planning of syntheses of stereochemically complex molecules. This hitherto neglected area is essential for the advancement of enantioselective synthesis to a more rational and powerful level. Part III describes in detail many reaction sequences which have been used successfully for the construction of a wide variety of complex target molecules Clearly explains stereochemical synthesis in theory and practice Provides a handy tool box for scientists wishing to understand and apply chiral chemical synthesis Describes almost 50 real life examples of asymmetric synthesis in practice and examines how the chiral centers were introduced at key synthetic stages