Author: Aurélie Despont
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
[Résumé (extrait)] Il existe plusieurs méthodes publiées de screening et de dosage par chromatographie en phase gazeuse, couplée à la spectrométrie de masse (GC-MS), mais elles sont longues, fastidieuses et parfois peu sensibles. Le but de ce travail a été de mettre au point une autre approche analytique reposant sur l'emploi de la chromatographie liquide à haute performance (HPLC), afin de faciliter les analyses. [auteur].
Mise au point d'une technique d'analyse des stimulants par HPLC
Author: Aurélie Despont
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
[Résumé (extrait)] Il existe plusieurs méthodes publiées de screening et de dosage par chromatographie en phase gazeuse, couplée à la spectrométrie de masse (GC-MS), mais elles sont longues, fastidieuses et parfois peu sensibles. Le but de ce travail a été de mettre au point une autre approche analytique reposant sur l'emploi de la chromatographie liquide à haute performance (HPLC), afin de faciliter les analyses. [auteur].
Publisher:
ISBN:
Category :
Languages : fr
Pages :
Book Description
[Résumé (extrait)] Il existe plusieurs méthodes publiées de screening et de dosage par chromatographie en phase gazeuse, couplée à la spectrométrie de masse (GC-MS), mais elles sont longues, fastidieuses et parfois peu sensibles. Le but de ce travail a été de mettre au point une autre approche analytique reposant sur l'emploi de la chromatographie liquide à haute performance (HPLC), afin de faciliter les analyses. [auteur].
Mise au point d'une technique chromatographie liquide haute performance (CLHP) et comparaison avec différentes méthodes d'analyse de pureté radiochimique (PRC) d'un médicament radiopharmaceutique
Author: Emmanuelle Le Dauphin
Publisher:
ISBN:
Category :
Languages : fr
Pages : 73
Book Description
Publisher:
ISBN:
Category :
Languages : fr
Pages : 73
Book Description
Evaluation d'une méthode d'analyse de médicaments hypnotiques et/ou tranquilisants par HPLC-DAD, éventuellement LC-MS-MS
Author: Aurélie Gertsch
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
Book Description
Publisher:
ISBN:
Category :
Languages : fr
Pages : 150
Book Description
How Tobacco Smoke Causes Disease
Author: United States. Public Health Service. Office of the Surgeon General
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 728
Book Description
This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 728
Book Description
This report considers the biological and behavioral mechanisms that may underlie the pathogenicity of tobacco smoke. Many Surgeon General's reports have considered research findings on mechanisms in assessing the biological plausibility of associations observed in epidemiologic studies. Mechanisms of disease are important because they may provide plausibility, which is one of the guideline criteria for assessing evidence on causation. This report specifically reviews the evidence on the potential mechanisms by which smoking causes diseases and considers whether a mechanism is likely to be operative in the production of human disease by tobacco smoke. This evidence is relevant to understanding how smoking causes disease, to identifying those who may be particularly susceptible, and to assessing the potential risks of tobacco products.
Historical Painting Techniques, Materials, and Studio Practice
Author: Arie Wallert
Publisher: Getty Publications
ISBN: 0892363223
Category : Art
Languages : en
Pages : 241
Book Description
Bridging the fields of conservation, art history, and museum curating, this volume contains the principal papers from an international symposium titled "Historical Painting Techniques, Materials, and Studio Practice" at the University of Leiden in Amsterdam, Netherlands, from June 26 to 29, 1995. The symposium—designed for art historians, conservators, conservation scientists, and museum curators worldwide—was organized by the Department of Art History at the University of Leiden and the Art History Department of the Central Research Laboratory for Objects of Art and Science in Amsterdam. Twenty-five contributors representing museums and conservation institutions throughout the world provide recent research on historical painting techniques, including wall painting and polychrome sculpture. Topics cover the latest art historical research and scientific analyses of original techniques and materials, as well as historical sources, such as medieval treatises and descriptions of painting techniques in historical literature. Chapters include the painting methods of Rembrandt and Vermeer, Dutch 17th-century landscape painting, wall paintings in English churches, Chinese paintings on paper and canvas, and Tibetan thangkas. Color plates and black-and-white photographs illustrate works from the Middle Ages to the 20th century.
Publisher: Getty Publications
ISBN: 0892363223
Category : Art
Languages : en
Pages : 241
Book Description
Bridging the fields of conservation, art history, and museum curating, this volume contains the principal papers from an international symposium titled "Historical Painting Techniques, Materials, and Studio Practice" at the University of Leiden in Amsterdam, Netherlands, from June 26 to 29, 1995. The symposium—designed for art historians, conservators, conservation scientists, and museum curators worldwide—was organized by the Department of Art History at the University of Leiden and the Art History Department of the Central Research Laboratory for Objects of Art and Science in Amsterdam. Twenty-five contributors representing museums and conservation institutions throughout the world provide recent research on historical painting techniques, including wall painting and polychrome sculpture. Topics cover the latest art historical research and scientific analyses of original techniques and materials, as well as historical sources, such as medieval treatises and descriptions of painting techniques in historical literature. Chapters include the painting methods of Rembrandt and Vermeer, Dutch 17th-century landscape painting, wall paintings in English churches, Chinese paintings on paper and canvas, and Tibetan thangkas. Color plates and black-and-white photographs illustrate works from the Middle Ages to the 20th century.
Cover Crops in West Africa
Author: International Development Research Centre (Canada)
Publisher: IDRC
ISBN: 088936852X
Category : Cover crops
Languages : en
Pages : 319
Book Description
Cover Crops in West Africa Contributing to Sustainable Agriculture
Publisher: IDRC
ISBN: 088936852X
Category : Cover crops
Languages : en
Pages : 319
Book Description
Cover Crops in West Africa Contributing to Sustainable Agriculture
Clarke's Analytical Forensic Toxicology
Author: Gail Cooper
Publisher: Pharmaceutical Press
ISBN: 0857110543
Category : Law
Languages : en
Pages : 657
Book Description
This invaluable textbook, written by international experts, covers all the main elements of forensic toxicology and analytical toxicology techniques as well as the important parts of pharmacokinetics, drug metabolism, and pharmacology in general, with a particular focus on drugs of abuse.
Publisher: Pharmaceutical Press
ISBN: 0857110543
Category : Law
Languages : en
Pages : 657
Book Description
This invaluable textbook, written by international experts, covers all the main elements of forensic toxicology and analytical toxicology techniques as well as the important parts of pharmacokinetics, drug metabolism, and pharmacology in general, with a particular focus on drugs of abuse.
Liquid Chromatography Time-of-Flight Mass Spectrometry
Author: Imma Ferrer
Publisher: John Wiley & Sons
ISBN: 047042995X
Category : Science
Languages : en
Pages : 281
Book Description
Time of flight mass spectrometry identifies the elements of a compound by subjecting a sample of ions to a strong electrical field. Illuminating emerging analytical techniques in high-resolution mass spectrometry, Liquid Chromatography Time-of-Flight Mass Spectrometry shows readers how to analyze unknown and emerging contaminants—such as antibiotics, steroids, analgesics—using advanced mass spectrometry techniques. The text combines theoretical discussion with concrete examples, making it suitable for analytical chemists, environmental chemists, organic chemists, medicinal chemists, university research chemists, and graduate and post-doctorate students.
Publisher: John Wiley & Sons
ISBN: 047042995X
Category : Science
Languages : en
Pages : 281
Book Description
Time of flight mass spectrometry identifies the elements of a compound by subjecting a sample of ions to a strong electrical field. Illuminating emerging analytical techniques in high-resolution mass spectrometry, Liquid Chromatography Time-of-Flight Mass Spectrometry shows readers how to analyze unknown and emerging contaminants—such as antibiotics, steroids, analgesics—using advanced mass spectrometry techniques. The text combines theoretical discussion with concrete examples, making it suitable for analytical chemists, environmental chemists, organic chemists, medicinal chemists, university research chemists, and graduate and post-doctorate students.
Plant-derived Natural Products
Author: Anne E. Osbourn
Publisher: Springer Science & Business Media
ISBN: 0387854983
Category : Science
Languages : en
Pages : 588
Book Description
Plants produce a huge array of natural products (secondary metabolites). These compounds have important ecological functions, providing protection against attack by herbivores and microbes and serving as attractants for pollinators and seed-dispersing agents. They may also contribute to competition and invasiveness by suppressing the growth of neighboring plant species (a phenomenon known as allelopathy). Humans exploit natural products as sources of drugs, flavoring agents, fragrances and for a wide range of other applications. Rapid progress has been made in recent years in understanding natural product synthesis, regulation and function and the evolution of metabolic diversity. It is timely to bring this information together with contemporary advances in chemistry, plant biology, ecology, agronomy and human health to provide a comprehensive guide to plant-derived natural products. Plant-derived natural products: synthesis, function and application provides an informative and accessible overview of the different facets of the field, ranging from an introduction to the different classes of natural products through developments in natural product chemistry and biology to ecological interactions and the significance of plant-derived natural products for humans. In the final section of the book a series of chapters on new trends covers metabolic engineering, genome-wide approaches, the metabolic consequences of genetic modification, developments in traditional medicines and nutraceuticals, natural products as leads for drug discovery and novel non-food crops.
Publisher: Springer Science & Business Media
ISBN: 0387854983
Category : Science
Languages : en
Pages : 588
Book Description
Plants produce a huge array of natural products (secondary metabolites). These compounds have important ecological functions, providing protection against attack by herbivores and microbes and serving as attractants for pollinators and seed-dispersing agents. They may also contribute to competition and invasiveness by suppressing the growth of neighboring plant species (a phenomenon known as allelopathy). Humans exploit natural products as sources of drugs, flavoring agents, fragrances and for a wide range of other applications. Rapid progress has been made in recent years in understanding natural product synthesis, regulation and function and the evolution of metabolic diversity. It is timely to bring this information together with contemporary advances in chemistry, plant biology, ecology, agronomy and human health to provide a comprehensive guide to plant-derived natural products. Plant-derived natural products: synthesis, function and application provides an informative and accessible overview of the different facets of the field, ranging from an introduction to the different classes of natural products through developments in natural product chemistry and biology to ecological interactions and the significance of plant-derived natural products for humans. In the final section of the book a series of chapters on new trends covers metabolic engineering, genome-wide approaches, the metabolic consequences of genetic modification, developments in traditional medicines and nutraceuticals, natural products as leads for drug discovery and novel non-food crops.
Analytical Artifacts
Author: B.S. Middleditch
Publisher: Elsevier
ISBN: 008085849X
Category : Science
Languages : en
Pages : 1059
Book Description
This encyclopaedic catalogue of the pitfalls and problems that all analysts encounter in their work is destined to spend more time on the analyst's workbench than on a library shelf. The author has dedicated the book to ``the innumerable scientists who made mistakes, used impure chemicals and solvents, suffered the consequences of unanticipated side-reactions, and were otherwise exposed to mayhem yet were not too embarrassed to publish their findings''. Traditionally, the mass spectroscopist or gas chromatographer learnt his trade by participating in a 4-6 year apprenticeship as graduate student and post-doctoral researcher. Generally, no formal training was provided on the things that go wrong, but this information was accumulated by sharing in the experiences of colleagues. Nowadays, many novice scientists simply purchase a computerized instrument, plug it in, and use it. Much time can be wasted in studying and resolving problems due to artifacts and there is also a strong possibility that artifacts will not be recognized as such. For example, most analysts realize that they should use glass rather than plastic containers; but few of them would anticipate the possibility of plasticizer residues on glassware washed using detergent from a plastic bottle.This book is an easy-to-use compendium of problems encountered when using various commonly used analytical techniques. Emphasis is on impurities, by-products, contaminants and other artifacts. A separate entry is provided for each artifact. For specific chemicals, this entry provides the common name, mass spectrum, gas chromatographic data, CAS name and registry number, synonyms and a narrative discussion. More than 1100 entries are included. Mass spectral data are indexed in a 6-peak index (molecular ion, base peak, second peak, third peak) and there are also formula, author and subject indexes. An extensive bibliography contains complete literature citations.The book is designed to be used. It will not only allow experienced analysts to profit from the mistakes of others, but it will also be invaluable to other scientists who use analytical instruments in their work.
Publisher: Elsevier
ISBN: 008085849X
Category : Science
Languages : en
Pages : 1059
Book Description
This encyclopaedic catalogue of the pitfalls and problems that all analysts encounter in their work is destined to spend more time on the analyst's workbench than on a library shelf. The author has dedicated the book to ``the innumerable scientists who made mistakes, used impure chemicals and solvents, suffered the consequences of unanticipated side-reactions, and were otherwise exposed to mayhem yet were not too embarrassed to publish their findings''. Traditionally, the mass spectroscopist or gas chromatographer learnt his trade by participating in a 4-6 year apprenticeship as graduate student and post-doctoral researcher. Generally, no formal training was provided on the things that go wrong, but this information was accumulated by sharing in the experiences of colleagues. Nowadays, many novice scientists simply purchase a computerized instrument, plug it in, and use it. Much time can be wasted in studying and resolving problems due to artifacts and there is also a strong possibility that artifacts will not be recognized as such. For example, most analysts realize that they should use glass rather than plastic containers; but few of them would anticipate the possibility of plasticizer residues on glassware washed using detergent from a plastic bottle.This book is an easy-to-use compendium of problems encountered when using various commonly used analytical techniques. Emphasis is on impurities, by-products, contaminants and other artifacts. A separate entry is provided for each artifact. For specific chemicals, this entry provides the common name, mass spectrum, gas chromatographic data, CAS name and registry number, synonyms and a narrative discussion. More than 1100 entries are included. Mass spectral data are indexed in a 6-peak index (molecular ion, base peak, second peak, third peak) and there are also formula, author and subject indexes. An extensive bibliography contains complete literature citations.The book is designed to be used. It will not only allow experienced analysts to profit from the mistakes of others, but it will also be invaluable to other scientists who use analytical instruments in their work.