LC-NMR and Other Hyphenated NMR Techniques

LC-NMR and Other Hyphenated NMR Techniques

Author: Maria V. Silva Elipe

Publisher: John Wiley & Sons

Published: 2011-12-20

Total Pages: 197

ISBN-13: 1118135385

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This practical guide provides a basic overview of the pros and cons of NMR spectroscopy as both a hyphenated and non-hyphenated technique. The book begins with a description of basic NMR concepts for the structural elucidation of organic compounds and then details the historical development of NMR and hyphenated NMR in the structural elucidation world, followed by applications of hyphenated NMR as LC-NMR and LC-MS-NMR in industry and academia. It also contains updated information on the latest advancements and applications of LC-NMR in such areas as degradation products, drug metabolism, food analysis, and drug discovery. An essential resource for scientists in industry and academia who work in the areas of organic chemistry, medicinal chemistry, process chemistry, and analytical chemistry.


Book Synopsis LC-NMR and Other Hyphenated NMR Techniques by : Maria V. Silva Elipe

Download or read book LC-NMR and Other Hyphenated NMR Techniques written by Maria V. Silva Elipe and published by John Wiley & Sons. This book was released on 2011-12-20 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: This practical guide provides a basic overview of the pros and cons of NMR spectroscopy as both a hyphenated and non-hyphenated technique. The book begins with a description of basic NMR concepts for the structural elucidation of organic compounds and then details the historical development of NMR and hyphenated NMR in the structural elucidation world, followed by applications of hyphenated NMR as LC-NMR and LC-MS-NMR in industry and academia. It also contains updated information on the latest advancements and applications of LC-NMR in such areas as degradation products, drug metabolism, food analysis, and drug discovery. An essential resource for scientists in industry and academia who work in the areas of organic chemistry, medicinal chemistry, process chemistry, and analytical chemistry.


On-line LC-NMR and Related Techniques

On-line LC-NMR and Related Techniques

Author: Klaus Albert

Publisher: John Wiley & Sons

Published: 2003-02-14

Total Pages: 306

ISBN-13: 0470854812

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This book gives a comprehensive overview of the basis and the current applications of LC-NMR and related techniques. It deals with the practical aspects of the hardware and software set-up for a successful performance of on-line coupling experiments. It covers the solution of real-word problems from the fields of biomedical, pharmaceutical and environmental studies as well as the analysis of natural products and polymeric compounds. Thus guidelines for an efficient application of the powerful hyphenated technique LC-NMR in combination with LC-MS are presented. Besides LC-NMR, important techniques such as the on-line coupling of gel permeation chromatography and supercritical fluid chromatography, together with 1H NMR spectroscopy, are described in detail. Fascinating further aspects, such as the application of capillary separation techniques either in the single or parallel detection mode, together with the possibilities of direct 13C monitoring of chromatographic events, are also discussed. Key features include: * Up-to-date information on the theoretical and experimental methodology * Coverage of applications in biomedical, pharmaceutical and natural product analysis, as well as environmental polymer and related hyphenated techniques * Information appropriate for researchers in organic, pharmaceutical and medical chemistry Overall, this book is a requirement for all researchers and staff members dealing with structure elucidation problems in separation science.


Book Synopsis On-line LC-NMR and Related Techniques by : Klaus Albert

Download or read book On-line LC-NMR and Related Techniques written by Klaus Albert and published by John Wiley & Sons. This book was released on 2003-02-14 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview of the basis and the current applications of LC-NMR and related techniques. It deals with the practical aspects of the hardware and software set-up for a successful performance of on-line coupling experiments. It covers the solution of real-word problems from the fields of biomedical, pharmaceutical and environmental studies as well as the analysis of natural products and polymeric compounds. Thus guidelines for an efficient application of the powerful hyphenated technique LC-NMR in combination with LC-MS are presented. Besides LC-NMR, important techniques such as the on-line coupling of gel permeation chromatography and supercritical fluid chromatography, together with 1H NMR spectroscopy, are described in detail. Fascinating further aspects, such as the application of capillary separation techniques either in the single or parallel detection mode, together with the possibilities of direct 13C monitoring of chromatographic events, are also discussed. Key features include: * Up-to-date information on the theoretical and experimental methodology * Coverage of applications in biomedical, pharmaceutical and natural product analysis, as well as environmental polymer and related hyphenated techniques * Information appropriate for researchers in organic, pharmaceutical and medical chemistry Overall, this book is a requirement for all researchers and staff members dealing with structure elucidation problems in separation science.


LC-NMR

LC-NMR

Author: Nina C. Gonnella

Publisher: CRC Press

Published: 2020-01-15

Total Pages: 331

ISBN-13: 135102373X

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The isolation and structural characterization of substances present at very low concentrations, as is necessary to satisfy regulatory requirements for pharmaceutical drug degradants and impurities, can present scientific challenges. The coupling of HPLC with NMR spectroscopy has been at the forefront of cutting-edge technologies to address these issues. LC-NMR: Expanding the Limits of Structure Elucidation presents a comprehensive overview of key concepts in HPLC and NMR that are required to achieve definitive structure elucidation with very low levels of analytes. Because skill sets from both of these highly established disciplines are involved in LC-NMR, the author provides introductory background to facilitate readers’ proficiency in both areas, including an entire chapter on NMR theory. The much-anticipated second edition provides guidance in setting up LC-NMR systems, discussion of LC methods that are compatible with NMR, and an update on recent hardware and software advances for system performance, such as improvements in magnet design, probe technology, and solvent suppression techniques that enable unprecedented mass sensitivity in NMR. This edition features methods to quantify concentration and assess purity of isolated metabolites on the micro scale and incorporates computational approaches to accelerate the structure elucidation process. The author also includes implementation and application of qNMR and automated and practical use of computational chemistry combined with QM and DFT to predict highly accurate NMR chemical shifts. The text focuses on current developments in chromatographic-NMR integration, with particular emphasis on utility in the pharmaceutical industry. Applications include trace analysis, analysis of mixtures, and structural characterization of degradation products, impurities, metabolites, peptides, and more. The text discusses novel uses and emerging technologies that challenge detection limits as well future directions for this important technique. This book is a practical primary resource for NMR structure determination—including theory and application—that guides the reader through the steps required for isolation and NMR structure elucidation on the micro scale.


Book Synopsis LC-NMR by : Nina C. Gonnella

Download or read book LC-NMR written by Nina C. Gonnella and published by CRC Press. This book was released on 2020-01-15 with total page 331 pages. Available in PDF, EPUB and Kindle. Book excerpt: The isolation and structural characterization of substances present at very low concentrations, as is necessary to satisfy regulatory requirements for pharmaceutical drug degradants and impurities, can present scientific challenges. The coupling of HPLC with NMR spectroscopy has been at the forefront of cutting-edge technologies to address these issues. LC-NMR: Expanding the Limits of Structure Elucidation presents a comprehensive overview of key concepts in HPLC and NMR that are required to achieve definitive structure elucidation with very low levels of analytes. Because skill sets from both of these highly established disciplines are involved in LC-NMR, the author provides introductory background to facilitate readers’ proficiency in both areas, including an entire chapter on NMR theory. The much-anticipated second edition provides guidance in setting up LC-NMR systems, discussion of LC methods that are compatible with NMR, and an update on recent hardware and software advances for system performance, such as improvements in magnet design, probe technology, and solvent suppression techniques that enable unprecedented mass sensitivity in NMR. This edition features methods to quantify concentration and assess purity of isolated metabolites on the micro scale and incorporates computational approaches to accelerate the structure elucidation process. The author also includes implementation and application of qNMR and automated and practical use of computational chemistry combined with QM and DFT to predict highly accurate NMR chemical shifts. The text focuses on current developments in chromatographic-NMR integration, with particular emphasis on utility in the pharmaceutical industry. Applications include trace analysis, analysis of mixtures, and structural characterization of degradation products, impurities, metabolites, peptides, and more. The text discusses novel uses and emerging technologies that challenge detection limits as well future directions for this important technique. This book is a practical primary resource for NMR structure determination—including theory and application—that guides the reader through the steps required for isolation and NMR structure elucidation on the micro scale.


LC-NMR

LC-NMR

Author: Nina C. Gonnella

Publisher: CRC Press

Published: 2013-03-15

Total Pages: 299

ISBN-13: 1439875073

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The isolation and structural characterization of substances present at very low concentrations, as is necessary to satisfy regulatory requirements for pharmaceutical drug degradants and impurities, can present scientific challenges. The coupling of HPLC with NMR spectroscopy has been at the forefront of cutting-edge technologies to address these is


Book Synopsis LC-NMR by : Nina C. Gonnella

Download or read book LC-NMR written by Nina C. Gonnella and published by CRC Press. This book was released on 2013-03-15 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The isolation and structural characterization of substances present at very low concentrations, as is necessary to satisfy regulatory requirements for pharmaceutical drug degradants and impurities, can present scientific challenges. The coupling of HPLC with NMR spectroscopy has been at the forefront of cutting-edge technologies to address these is


Hyphenated and Alternative Methods of Detection in Chromatography

Hyphenated and Alternative Methods of Detection in Chromatography

Author: R. Andrew Shalliker

Publisher: CRC Press

Published: 2011-12-14

Total Pages: 311

ISBN-13: 084939077X

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Widely employed for separating and detecting chemicals in solution, separation techniques are most often applied in tandem, subsequently referred to as hyphenated methods. Hyphenated and Alternative Methods of Detection in Chromatography details the development and application of mass spectral detection techniques coupled with gas phase and liquid phase chromatographies. With contributions from experts in a variety of fields, as evidenced by the range of topics, the book describes the advantages and disadvantages of various separation techniques and addresses methods for cutting-edge applications such as proteomics research. Specifically, this book covers: The development of the LC-NMR and its application in chromatographic science, particularly in relation to the analysis of natural and environmental samples and in the study of reaction monitoring, biosynthetic analysis, and structural elucidation The application of LC-ICP in biological samples for the speciation of organoarsenic and organoselenium compounds; metal complexes in microorganisms, plants, and foods of plant origin; human body fluids and tissues; and in the detection of chemical warfare agents Electrochemical detection in liquid chromatography, system optimization, and applications in the analysis of flavonoids The use of chemiluminescence for microcolumn and capillary methods of separation The process of employing multidimensional separation methods as a means of identifying components in complex samples A detailed reference for those starting out in the field, this book also suits those who are more experienced yet require assistance in new directions. It is an ideal reference for senior undergraduate and postgraduate students wishing to supplement their learning experience. Containing over 800 references, this book is an excellent source of information within the field of hyphenated methods of chromatographic analysis.


Book Synopsis Hyphenated and Alternative Methods of Detection in Chromatography by : R. Andrew Shalliker

Download or read book Hyphenated and Alternative Methods of Detection in Chromatography written by R. Andrew Shalliker and published by CRC Press. This book was released on 2011-12-14 with total page 311 pages. Available in PDF, EPUB and Kindle. Book excerpt: Widely employed for separating and detecting chemicals in solution, separation techniques are most often applied in tandem, subsequently referred to as hyphenated methods. Hyphenated and Alternative Methods of Detection in Chromatography details the development and application of mass spectral detection techniques coupled with gas phase and liquid phase chromatographies. With contributions from experts in a variety of fields, as evidenced by the range of topics, the book describes the advantages and disadvantages of various separation techniques and addresses methods for cutting-edge applications such as proteomics research. Specifically, this book covers: The development of the LC-NMR and its application in chromatographic science, particularly in relation to the analysis of natural and environmental samples and in the study of reaction monitoring, biosynthetic analysis, and structural elucidation The application of LC-ICP in biological samples for the speciation of organoarsenic and organoselenium compounds; metal complexes in microorganisms, plants, and foods of plant origin; human body fluids and tissues; and in the detection of chemical warfare agents Electrochemical detection in liquid chromatography, system optimization, and applications in the analysis of flavonoids The use of chemiluminescence for microcolumn and capillary methods of separation The process of employing multidimensional separation methods as a means of identifying components in complex samples A detailed reference for those starting out in the field, this book also suits those who are more experienced yet require assistance in new directions. It is an ideal reference for senior undergraduate and postgraduate students wishing to supplement their learning experience. Containing over 800 references, this book is an excellent source of information within the field of hyphenated methods of chromatographic analysis.


NMR Spectroscopy Techniques

NMR Spectroscopy Techniques

Author: C. R. Dybowski

Publisher: Marcel Dekker

Published: 1987

Total Pages: 392

ISBN-13:

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Book Synopsis NMR Spectroscopy Techniques by : C. R. Dybowski

Download or read book NMR Spectroscopy Techniques written by C. R. Dybowski and published by Marcel Dekker. This book was released on 1987 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt:


HPLC for Pharmaceutical Scientists

HPLC for Pharmaceutical Scientists

Author: Yuri V. Kazakevich

Publisher: John Wiley & Sons

Published: 2007-02-16

Total Pages: 1136

ISBN-13: 0470087943

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HPLC for Pharmaceutical Scientists is an excellent book for both novice and experienced pharmaceutical chemists who regularly use HPLC as an analytical tool to solve challenging problems in the pharmaceutical industry. It provides a unified approach to HPLC with an equal and balanced treatment of the theory and practice of HPLC in the pharmaceutical industry. In-depth discussion of retention processes, modern HPLC separation theory, properties of stationary phases and columns are well blended with the practical aspects of fast and effective method development and method validation. Practical and pragmatic approaches and actual examples of effective development of selective and rugged HPLC methods from a physico-chemical point of view are provided. This book elucidates the role of HPLC throughout the entire drug development process from drug candidate inception to marketed drug product and gives detailed specifics of HPLC application in each stage of drug development. The latest advancements and trends in hyphenated and specialized HPLC techniques (LC-MS, LC-NMR, Preparative HPLC, High temperature HPLC, high pressure liquid chromatography) are also discussed.


Book Synopsis HPLC for Pharmaceutical Scientists by : Yuri V. Kazakevich

Download or read book HPLC for Pharmaceutical Scientists written by Yuri V. Kazakevich and published by John Wiley & Sons. This book was released on 2007-02-16 with total page 1136 pages. Available in PDF, EPUB and Kindle. Book excerpt: HPLC for Pharmaceutical Scientists is an excellent book for both novice and experienced pharmaceutical chemists who regularly use HPLC as an analytical tool to solve challenging problems in the pharmaceutical industry. It provides a unified approach to HPLC with an equal and balanced treatment of the theory and practice of HPLC in the pharmaceutical industry. In-depth discussion of retention processes, modern HPLC separation theory, properties of stationary phases and columns are well blended with the practical aspects of fast and effective method development and method validation. Practical and pragmatic approaches and actual examples of effective development of selective and rugged HPLC methods from a physico-chemical point of view are provided. This book elucidates the role of HPLC throughout the entire drug development process from drug candidate inception to marketed drug product and gives detailed specifics of HPLC application in each stage of drug development. The latest advancements and trends in hyphenated and specialized HPLC techniques (LC-MS, LC-NMR, Preparative HPLC, High temperature HPLC, high pressure liquid chromatography) are also discussed.


Applications of NMR Spectroscopy: Volume 3

Applications of NMR Spectroscopy: Volume 3

Author: Atta-ur Rahman

Publisher: Elsevier

Published: 2015-12-11

Total Pages: 284

ISBN-13: 1681080621

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Applications of NMR Spectroscopy, Volume 3 presents the latest developments in the field of NMR spectroscopy, including the analysis of the structure-property relationship of polyphenols, breast cancer diagnosis, drug discovery and formulation, protein confirmation analysis using Fluorine NMR, and enaminone studies. The well-illustrated chapters contain comprehensive references to the recent literature. The content is ideal for readers who are seeking reviews and updates, as it consolidates scientific articles of a diverse nature into a single volume. The book is organized into sections based on disciplines such as food science and medical diagnostics, with each chapter written by eminent experts in the field. The applications presented cover a wide range of the field, such as drug development, medical imaging and diagnostics, food science, mining, petrochemical, process control, materials science, and chemical engineering, making this resource a multi-disciplinary reference. Consolidates the latest developments in NMR spectroscopy into a single volume Authored and edited by world-leading experts in spectroscopy Features comprehensive references to the most recent related literature More than 75 illustrations aid in the retention of key concepts


Book Synopsis Applications of NMR Spectroscopy: Volume 3 by : Atta-ur Rahman

Download or read book Applications of NMR Spectroscopy: Volume 3 written by Atta-ur Rahman and published by Elsevier. This book was released on 2015-12-11 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: Applications of NMR Spectroscopy, Volume 3 presents the latest developments in the field of NMR spectroscopy, including the analysis of the structure-property relationship of polyphenols, breast cancer diagnosis, drug discovery and formulation, protein confirmation analysis using Fluorine NMR, and enaminone studies. The well-illustrated chapters contain comprehensive references to the recent literature. The content is ideal for readers who are seeking reviews and updates, as it consolidates scientific articles of a diverse nature into a single volume. The book is organized into sections based on disciplines such as food science and medical diagnostics, with each chapter written by eminent experts in the field. The applications presented cover a wide range of the field, such as drug development, medical imaging and diagnostics, food science, mining, petrochemical, process control, materials science, and chemical engineering, making this resource a multi-disciplinary reference. Consolidates the latest developments in NMR spectroscopy into a single volume Authored and edited by world-leading experts in spectroscopy Features comprehensive references to the most recent related literature More than 75 illustrations aid in the retention of key concepts


Methodologies for Metabolomics

Methodologies for Metabolomics

Author: Norbert W. Lutz

Publisher: Cambridge University Press

Published: 2013-01-21

Total Pages: 641

ISBN-13: 0521765900

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Metabolomics, the global characterisation of the small molecule complement involved in metabolism, has evolved into a powerful suite of approaches for understanding the global physiological and pathological processes occurring in biological organisms. The diversity of metabolites, the wide range of metabolic pathways and their divergent biological contexts require a range of methodological strategies and techniques. Methodologies for Metabolomics provides a comprehensive description of the newest methodological approaches in metabolomic research. The most important technologies used to identify and quantify metabolites, including nuclear magnetic resonance and mass spectrometry, are highlighted. The integration of these techniques with classical biological methods is also addressed. Furthermore, the book presents statistical and chemometric methods for evaluation of the resultant data. The broad spectrum of topics includes a vast variety of organisms, samples and diseases, ranging from in vivo metabolomics in humans and animals to in vitro analysis of tissue samples, cultured cells and biofluids.


Book Synopsis Methodologies for Metabolomics by : Norbert W. Lutz

Download or read book Methodologies for Metabolomics written by Norbert W. Lutz and published by Cambridge University Press. This book was released on 2013-01-21 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: Metabolomics, the global characterisation of the small molecule complement involved in metabolism, has evolved into a powerful suite of approaches for understanding the global physiological and pathological processes occurring in biological organisms. The diversity of metabolites, the wide range of metabolic pathways and their divergent biological contexts require a range of methodological strategies and techniques. Methodologies for Metabolomics provides a comprehensive description of the newest methodological approaches in metabolomic research. The most important technologies used to identify and quantify metabolites, including nuclear magnetic resonance and mass spectrometry, are highlighted. The integration of these techniques with classical biological methods is also addressed. Furthermore, the book presents statistical and chemometric methods for evaluation of the resultant data. The broad spectrum of topics includes a vast variety of organisms, samples and diseases, ranging from in vivo metabolomics in humans and animals to in vitro analysis of tissue samples, cultured cells and biofluids.


Techniques to Measure Food Safety and Quality

Techniques to Measure Food Safety and Quality

Author: Mohidus Samad Khan

Publisher: Springer Nature

Published: 2021-09-22

Total Pages: 478

ISBN-13: 3030686361

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This book addresses the basic understanding of food contaminants and their sources, followed by the techniques to measure food safety and quality. It is divided into four parts: Part A - sources of contaminants in foods, their associated health risks, and integrated management and alternative options to minimize contaminants; Part B - Technological assessment of conventional methods and selected advanced methods for the detection, identification and enumeration of microbial contaminates; Part C - Technological assessment of different chemical measurements techniques; and Part D – Technological assessment of different instrumental techniques to assess sensory properties of foods. Food safety is a growing concern due to the increase in food-borne illnesses caused by food adulteration, excessive use of pesticides, use of chemical preservatives and artificial fruit ripening agents, microbial contaminations, and improper food handling. Chemical contaminants in food could be transferred from environmental or agrochemical sources, personal care products, and other by-products of water disinfects. In addition, microbial food safety can be threatened due to the presence of many pathogens, such as Salmonella, Escherichia coli, Clostridium botulinum, Staphylococcus aureus, and Listeria monocytogenes in foods. Globally, strict regulations are imposed to limit the potential contaminants in foods. Development of accurate, rapid, and inexpensive approaches to test food contamination and adulteration would be highly valued to ensure global food safety. There are existing processes to ensure safety of food products from chemical and microbial contaminants. Apart from the existing measurement technologies, varieties of new techniques are also being emerged and these could be potential to ensure food safety and quality. In addition to chemical and microbial properties, sensory properties such as texture, mouth feel, flavor, and taste, are among the most important attributes of food products to ensure their acceptability by consumers. Two approaches are available to evaluate sensory properties of food products, namely subjective and objective analyses. The responses are perceived by all five senses: smell, taste, sight, touch, and hearing. The approach used in sensory evaluation varies depending on the types of foods and the ultimate goal of the testing. Sensory attributes are the most important quality parameters after ensuring the safety of foods.


Book Synopsis Techniques to Measure Food Safety and Quality by : Mohidus Samad Khan

Download or read book Techniques to Measure Food Safety and Quality written by Mohidus Samad Khan and published by Springer Nature. This book was released on 2021-09-22 with total page 478 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the basic understanding of food contaminants and their sources, followed by the techniques to measure food safety and quality. It is divided into four parts: Part A - sources of contaminants in foods, their associated health risks, and integrated management and alternative options to minimize contaminants; Part B - Technological assessment of conventional methods and selected advanced methods for the detection, identification and enumeration of microbial contaminates; Part C - Technological assessment of different chemical measurements techniques; and Part D – Technological assessment of different instrumental techniques to assess sensory properties of foods. Food safety is a growing concern due to the increase in food-borne illnesses caused by food adulteration, excessive use of pesticides, use of chemical preservatives and artificial fruit ripening agents, microbial contaminations, and improper food handling. Chemical contaminants in food could be transferred from environmental or agrochemical sources, personal care products, and other by-products of water disinfects. In addition, microbial food safety can be threatened due to the presence of many pathogens, such as Salmonella, Escherichia coli, Clostridium botulinum, Staphylococcus aureus, and Listeria monocytogenes in foods. Globally, strict regulations are imposed to limit the potential contaminants in foods. Development of accurate, rapid, and inexpensive approaches to test food contamination and adulteration would be highly valued to ensure global food safety. There are existing processes to ensure safety of food products from chemical and microbial contaminants. Apart from the existing measurement technologies, varieties of new techniques are also being emerged and these could be potential to ensure food safety and quality. In addition to chemical and microbial properties, sensory properties such as texture, mouth feel, flavor, and taste, are among the most important attributes of food products to ensure their acceptability by consumers. Two approaches are available to evaluate sensory properties of food products, namely subjective and objective analyses. The responses are perceived by all five senses: smell, taste, sight, touch, and hearing. The approach used in sensory evaluation varies depending on the types of foods and the ultimate goal of the testing. Sensory attributes are the most important quality parameters after ensuring the safety of foods.