Download or read book APPLICATIONS ANALYTIQUES DE NOUVEAUX CONCEPTS EN SPECTROMETRIE DE MASSE written by François Couderc and published by . This book was released on 1989 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA FRAGMENTATION DES IONS A CHARGE PIEGEE EST UN NOUVEAU CONCEPT PRESENTE PAR M. GROSS (LINCOLN, NEBRASKA). NOUS AVONS TRANSPOSE CE CONCEPT AU NIVEAU ANALYTIQUE POUR L'ETUDE D'ACIDE GRAS DERIVES EN ESTER DE PENTAFLUORO BENZYLE EN GENERANT D'UNE PART DES IONS A CHARGE PIEGEE APRES SEPARATION MOLECULAIRE EN PHASE VAPEUR DE CES ESTERS (CHROMATOGRAPHIE EN PHASE GAZEUSE), ET D'AUTRE PART EN LES FRAGMENTANT SUCCESSIVEMENT PAR COLLISION DANS UNE ECHELLE DE TEMPS COMPATIBLE AVEC LA SEPARATION CHROMATOGRAPHIQUE. CETTE METHODE TRES SENSIBLE (NANOGRAMME) A PERMIS LA DETERMINATION STRUCTURALE DE NOMBREUX ACIDES GRAS NOUVEAUX DANS DES EXTRAITS DE MYCOBACTERIES. L'ANALYSE DE MELANGES PAR BOMBARDEMENT PAR ATOMES RAPIDES (FAB) EST SOUVENT INCOMPLETE PAR SUITE DE RENDEMENTS D'IONISATION TRES VARIABLES SELON LA NATURE DES COMPOSES PRESENTS. AINSI, NOUS AVONS SONGE A COUPLER L'IONISATION FAB A UN PROCESSUS DE SEPARATION MOLECULAIRE DE PEPTIDES EN FONCTION DE LEUR HYDROPHOBICITE (HPLC PHASE INVERSE). L'ASSOCIATION DE LA FAB A FLOT CONTINU ET DE LA MICRO HPLC A PERMIS DE CARACTERISER UN VARIANT D'UNE HEMOGLOBINE HUMAINE (KOHLN) RESULTANT D'UNE MUTATION PONCTUELLE. SA DETECTION N'AVAIT PU ETRE REALISEE PAR LA METHODE CLASSIQUE DU FAB STATIQUE. CETTE NOUVELLE METHODE EST BEAUCOUP PLUS SENSIBLE ET PERMET DES ANALYSES DANS LE DOMAINE DE LA PICOMOLE

Download or read book La spectrom trie de masse en couplage avec la chromatographie en phase gazeuse written by BOUCHONNET Stéphane and published by Lavoisier. This book was released on 2009-09-09 with total page 211 pages. Available in PDF, EPUB and Kindle. Book excerpt: Premier ouvrage spécifiquement consacré à ce couplage, La spectrométrie de masse en couplage avec la chromatographie en phase gazeuse se différencie des autres publications scientifiques dédiées à la spectrométrie de masse en abordant la technologie avec une réelle volonté didactique. Ce manuel propose une démarche ancrée dans la pratique et offre des atouts décisifs pour gagner en temps et en qualité : une approche simple et précise du principe de fonctionnement des spectromètres de masse utilisés en couplage GC-MS, avec un minimum d'équations mathématiques, un comparatif des différents types de sources, d'analyseurs et de détecteurs, une mise en avant des aspects pratiques tels que la stratégie de mise au point d'une méthode de dosage ou l'utilisation d'une bibliothèque de spectres, un inventaire des problèmes et des "pièges" habituellement rencontrés par les utilisateurs de couplage GC-MS, un recueil des erreurs les plus communément commises et les solutions claires pour s'en affranchir. Ces conseils sont illustrés par de nombreux exemples choisis dans des domaines aussi divers que la toxicologie ou l'analyse environnementale avec toujours un double objectif pour les utilisateurs : leur permettre de tirer rapidement le meilleur parti de leur spectromètre de masse, les assister dans la détermination du matériel et des méthodes les plus appropriés à un contexte analytique donné (identification structurale, dosages multi-résidus, détermination de composés à l'état de traces en matrices complexes, etc.).

Download or read book General Analytical Chemistry written by Gwenola Burgot and published by CRC Press. This book was released on 2023-07-17 with total page 547 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides key information about the instrumental analytical methods which are the most used in quantitative analysis. A theoretical knowledge of each method is discussed. The methods are illustrated with several examples covering a wide range such as pharmacy, biochemical, environmental and agrochemicals analysis. It is structured into three parts: the first one focuses on separation methods, the second covers the spectroscopic ones and the third part develops the thermal and the radiochemical methods.

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2000 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mass Spectrometry of Polymers written by Giorgio Montaudo and published by CRC Press. This book was released on 2001-10-29 with total page 601 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mass Spectrometry (MS) has rapidly become an indispensable tool in polymer analysis, and modern MS today complements in many ways the structural data provided by Nuclear Magnetic Resonance (NMR) and Infrared (IR) methods. Recent advances have sparked a growing interest in this field and established a need for a summary of progress made and results

Download or read book Handbook of GC MS written by Hans-Joachim Hubschmann and published by John Wiley & Sons. This book was released on 2015-07-27 with total page 884 pages. Available in PDF, EPUB and Kindle. Book excerpt: The only comprehensive reference on this popular and rapidly developing technique provides a detailed overview, ranging from fundamentals to applications, including a section on the evaluation of GC-MS analyses. As such, it covers all aspects, including the theory and principles, as well as a broad range of real-life examples taken from laboratories in environmental, food, pharmaceutical and clinical analysis. It also features a glossary of approximately 300 terms and a substance index that facilitates finding a specific application. The first two editions were very well received, making this handbook a must-have in all analytical laboratories using GC-MS.

Download or read book Liquid Sample Introduction in ICP Spectrometry written by José-Luis Todoli and published by Elsevier. This book was released on 2011-04-18 with total page 301 pages. Available in PDF, EPUB and Kindle. Book excerpt: Inductively coupled plasma atomic or mass spectrometry is one of the most common techniques for elemental analysis. Samples to be analyzed are usually in the form of solutions and need to be introduced into the plasma by means of a sample introduction system, so as to obtain a mist of very fine droplets. Because the sample introduction system can be a limiting factor in the analytical performance, it is crucial to optimize its design and its use. It is the purpose of this book to provide fundamental knowledge along with practical instructions to obtain the best out of the technique. Fundamental as well as practical character Troubleshooting section Flow charts with optimum systems to be used for a given application

Download or read book Analusis written by and published by . This book was released on 1993 with total page 1098 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Comprehensive Foodomics written by and published by Elsevier. This book was released on 2020-11-12 with total page 2444 pages. Available in PDF, EPUB and Kindle. Book excerpt: Comprehensive Foodomics, Three Volume Set offers a definitive collection of over 150 articles that provide researchers with innovative answers to crucial questions relating to food quality, safety and its vital and complex links to our health. Topics covered include transcriptomics, proteomics, metabolomics, genomics, green foodomics, epigenetics and noncoding RNA, food safety, food bioactivity and health, food quality and traceability, data treatment and systems biology. Logically structured into 10 focused sections, each article is authored by world leading scientists who cover the whole breadth of Omics and related technologies, including the latest advances and applications. By bringing all this information together in an easily navigable reference, food scientists and nutritionists in both academia and industry will find it the perfect, modern day compendium for frequent reference. List of sections and Section Editors: Genomics - Olivia McAuliffe, Dept of Food Biosciences, Moorepark, Fermoy, Co. Cork, Ireland Epigenetics & Noncoding RNA - Juan Cui, Department of Computer Science & Engineering, University of Nebraska-Lincoln, Lincoln, NE Transcriptomics - Robert Henry, Queensland Alliance for Agriculture and Food Innovation, The University of Queensland, St Lucia, Australia Proteomics - Jens Brockmeyer, Institute of Biochemistry and Technical Biochemistry, University Stuttgart, Germany Metabolomics - Philippe Schmitt-Kopplin, Research Unit Analytical BioGeoChemistry, Neuherberg, Germany Omics data treatment, System Biology and Foodomics - Carlos Leon Canseco, Visiting Professor, Biomedical Engineering, Universidad Carlos III de Madrid Green Foodomics - Elena Ibanez, Foodomics Lab, CIAL, CSIC, Madrid, Spain Food safety and Foodomics - Djuro Josic, Professor Medicine (Research) Warren Alpert Medical School, Brown University, Providence, RI, USA & Sandra Kraljevic Pavelic, University of Rijeka, Department of Biotechnology, Rijeka, Croatia Food Quality, Traceability and Foodomics - Daniel Cozzolino, Centre for Nutrition and Food Sciences, The University of Queensland, Queensland, Australia Food Bioactivity, Health and Foodomics - Miguel Herrero, Department of Bioactivity and Food Analysis, Foodomics Lab, CIAL, CSIC, Madrid, Spain Brings all relevant foodomics information together in one place, offering readers a ‘one-stop,’ comprehensive resource for access to a wealth of information Includes articles written by academics and practitioners from various fields and regions Provides an ideal resource for students, researchers and professionals who need to find relevant information quickly and easily Includes content from high quality authors from across the globe

Download or read book Advances in Solid State Fermentation written by S. Roussos and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 641 pages. Available in PDF, EPUB and Kindle. Book excerpt: G.HAINNAUX Departement Milieu et Activites Agricoles, Centre ORSTOM, 911 Avenue d' Agropolis, B.P. 5045, 34032 Montpellier Cedex , France. Solid state fermentation, popularly abbreviated as SSF, is currently investigated by many groups throughout the world. The study of this technique was largely neglected in the past in European and Western countries and there is now a high demand for SSF, meaning in food, environment, agricultural, phannaceutical and many other biotechnological applications. It gives me satisfaction to note that the importance of this technique was realised at my department way back in 1975 since then, our team has put concentrated efforts on developing this technique. xvii Foreword Advances in Solid State Fermentation Foreword M. PUYGRENIER Agropolis Valorisation, Avenue d' Agropolis, 34394 Montpellier Cedex 5, France. On the name of the Scientific Community, I would like to express the wish that this International Symposium on SSF should be successful. Solid State Fermentation is part of biotechnology research. It consists on seeding solid culture medium with bacteria or fungi (filamentous or higher) and on producing, in this medium (solid components and exudates) metabolites and high value products. In fact, this process is very old. In older industries such the food and agricultural, this technique has been extensively used. An example of this is the production of pork sausages and Roquefort cheese. Pharmaceutical industry could make extensive use of SSF in the production of secondary metabolites of many kinds and development in this direction is soon expected.

Download or read book Dynamics of Chromatography written by J. Calvin Giddings and published by CRC Press. This book was released on 2017-12-19 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic and bestselling landmark publication, originally published in 1965, examines the dynamic mechanisms, fundamental principles, and physical properties of various chromatographic procedures. It offers methods to characterize, identify, and predict chromatographic phenomena - providing strategies to select the most appropriate separation tools and techniques for specific applications in chemistry, physics, biology, and forensic and environmental science. Written by a world-renowned pioneer in the field, Dynamics of Chromatography contains many worked equations and real-world examples in gas and liquid chromatography. It includes numerous schematic figures for visualization of key concepts, introduces the means to control migration rate differences and zone spreading, and presents a detailed random-walk model for clarification of column processes. It also analyzes flow, diffusion, and kinetic events, stresses the link between theory and practice, and summarizes mathematical quantities and parameters.

Download or read book Soil Analysis written by J. Gautheyrou and published by CRC Press. This book was released on 2001-01-01 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this book is to provide a better understanding of tools for soil analysis in order to use them more efficiently. It covers sampling problems as well as difficulties relating to actual analysis and quality control.

Download or read book Proton Transfer Reaction Mass Spectrometry written by Andrew M. Ellis and published by John Wiley & Sons. This book was released on 2013-12-17 with total page 361 pages. Available in PDF, EPUB and Kindle. Book excerpt: Proton Transfer Reaction Mass Spectrometry (PTR-MS) is a rapidly growing analytical technique for detecting and identifying very small quantities of chemical compounds in air. It has seen widespread use in atmospheric monitoring and food science and shows increasing promise in applications such as industrial process monitoring, medical science and in crime and security scenarios. Written by leading researchers, this is the first book devoted to PTR-MS and it provides a comprehensive account of the basic principles, the experimental technique and various applications, thus making this book essential reading for researchers, technicians, postgraduate students and professionals in industry. The book contains nine chapters and is divided into two parts. The first part describes the underlying principles of the PTR-MS technique, including • the relevant ion-molecule chemistry • thermodynamics and reaction kinetics • a discussion of ion sources, drift tubes and mass spectrometers • practical aspects of PTR-MS, including calibration. The second part of the book turns its attention to some of the many applications of PTR-MS, demonstrating the scope and benefits, as well as the limitations, of the technique. The chapters that make up the second part of the book build upon the material presented in the first part and are essentially self-contained reviews focusing on the following topics: • environmental science • food science • medicine • homeland security, and • applications of PTR-MS in liquid analysis.

Download or read book Modern HPLC for Practicing Scientists written by Michael W. Dong and published by John Wiley & Sons. This book was released on 2016-04-06 with total page 285 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehesive yet concise guide to Modern HPLC Written for practitioners by a practitioner, Modern HPLC for Practicing Scientists is a concise text which presents the most important High-Performance Liquid Chromatography (HPLC) fundamentals, applications, and developments. It describes basic theory and terminology for the novice, and reviews relevant concepts, best practices, and modern trends for the experienced practitioner. Moreover, the book serves well as an updated reference guide for busy laboratory analysts and researchers. Topics covered include: HPLC operation Method development Maintenance and troubleshooting Modern trends in HPLC such as quick-turnaround and "greener" methods Regulatory aspects While broad in scope, this book focuses particularly on reversed-phase HPLC, the most common separation mode, and on applications for the pharmaceutical industry, the largest user segment. Accessible to both novice and intermedate HPLC users, information is delivered in a straightforward manner illustrated with an abundance of diagrams, chromatograms, tables, and case studies, and supported with selected key references and Web resources. With intuitive explanations and clear figures, Modern HPLC for Practicing Scientists is an essential resource for practitioners of all levels who need to understand and utilize this versatile analytical technology.

Download or read book Physician s Guide to the Laboratory Diagnosis of Metabolic Diseases written by N. Blau and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 732 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of The Physician's Guide provides paediatricians and other physicians with a unique aid to help them select the correct diagnosis from a bewildering array of complex clinical and laboratory data. Delay and mistakes in the diagnosis of inherited metabolic diseases may have devastating consequences. The guide, which includes a CD-ROM, describes 298 disorders which have been grouped into 35 chapters according to the type of condition. Within each group of disorders, chapters provide tables of pertinent clinical findings as well as reference and pathological values for crucial metabolites. Relevant metabolic pathways and diagnostic flow charts are included. There are three indices to make the book as user-friendly as possible.

Download or read book INIS Atomindex written by and published by . This book was released on 1970 with total page 710 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Metagenomics written by Diana Marco and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses in a coherent manner the diverse and multiple aspects of metagenomics and the multiplicity of its potential applications. Renowned authors from around the world have contributed chapters covering the new theoretical insights, the more recent applications, and the dynamically developing methods of data acquisition and analysis. Topics include: Conceptual frameworks, tools and methods, integration of complementary approaches, horizontal gene transfer, analysis of complex microbial communities, public data resources, plant-microbe interactions, bioremediation, industrial biopr.