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Le Carbone Graphitise Poreux En Chromatographie En Phase Liquide
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Book Synopsis Caractérisation et utilisation du carbone graphite poreux et autres phases aromatiques en chromatographie subcritique by : Caroline West
Download or read book Caractérisation et utilisation du carbone graphite poreux et autres phases aromatiques en chromatographie subcritique written by Caroline West and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis LE CARBONE GRAPHITISE POREUX EN CHROMATOGRAPHIE EN PHASE LIQUIDE by : SOPHIE.. GUENU
Download or read book LE CARBONE GRAPHITISE POREUX EN CHROMATOGRAPHIE EN PHASE LIQUIDE written by SOPHIE.. GUENU and published by . This book was released on 1996 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: LE CARBONE GRAPHITISE POREUX (PGC), PHASE STATIONNAIRE RECENTE DE LA CHROMATOGRAPHIE EN PHASE LIQUIDE (CPL), RETIENT FORTEMENT LES COMPOSES AROMATIQUES POLAIRES EN EAU PURE. CE CARBONE DEVRAIT ALORS PERMETTRE L'ENRICHISSEMENT, PAR EXTRACTION LIQUIDE-SOLIDE (ELS), DE TRACES DE POLLUANTS ORGANIQUES POLAIRES DE L'EAU. LA PREMIERE PARTIE DE CE TRAVAIL A ETE CONSACREE A L'ETUDE DU MECANISME DE RETENTION SUR PGC EN CPL AFIN DE MAITRISER LES PARAMETRES PHYSICO-CHIMIQUES INFLUANT SUR LA RETENTION. NOUS AVONS MIS EN EVIDENCE UN MECANISME DE RETENTION MIXTE. NOUS AVONS EGALEMENT ETUDIE LA FORCE ELUANTE DE QUELQUES SOLVANTS ORGANIQUES SUR PGC. NOUS AVONS OBSERVE DE TRES GRANDS FACTEURS DE RETENTION POUR CERTAINS COMPOSES EN SOLVANT ORGANIQUE PUR. L'ETAT DE SURFACE DU PGC PEUT ALORS ETRE MODIFIE PAR FORTE ADSORPTION DE MOLECULES, CE QUI A POUR CONSEQUENCE UNE EVOLUTION DE LA RETENTION DE CERTAINS SOLUTES. LA SECONDE PARTIE DE CE TRAVAIL A CONSISTE A ETUDIER LE POTENTIEL DU PGC POUR EXTRAIRE LES COMPOSES POLAIRES DE L'EAU. D'EXCELLENTS RENDEMENTS D'EXTRACTION SONT OBTENUS AVEC UNE CARTOUCHE CONTENANT 500 MG DE PGC. LA MEILLEURE CONNAISSANCE DU MECANISME D'INTERACTION DES SOLUTES AVEC LE CARBONE EN CPL A PERMIS D'OPTIMISER LES PARAMETRES D'EXTRACTION LIQUIDE-SOLIDE. LA DESORPTION DES SOLUTES DOIT AINSI S'EFFECTUER DANS LE SENS OPPOSE A CELUI DE LA PERCOLATION DE L'ECHANTILLON. DE PLUS, LORSQUE L'ECHANTILLON AQUEUX EST PERCOLE A TRAVERS UNE PRECOLONNE COUPLEE A LA COLONNE ANALYTIQUE, SEUL LE COUPLAGE ENTRE UNE PRECOLONNE REMPLIE DE PGC ET UNE COLONNE DE PGC EST POSSIBLE. CE COUPLAGE PERMET L'ANALYSE DE PESTICIDES ET METABOLITES DE PESTICIDES POLAIRES A DES CONCENTRATIONS INFERIEURES A 0,1 G.L#-#1 (NORMES DE POTABILITE IMPOSEES POUR L'EAU PAR LA COMMUNAUTE ECONOMIQUE EUROPEENNE)
Book Synopsis Apport de la chromatographie en phase liquide couplée à la spectrométrie de masse pour l'analyse de traces d'explosifs by : Romain Tachon
Download or read book Apport de la chromatographie en phase liquide couplée à la spectrométrie de masse pour l'analyse de traces d'explosifs written by Romain Tachon and published by . This book was released on 2008 with total page 252 pages. Available in PDF, EPUB and Kindle. Book excerpt: Les investigations menées après attentat par les services de police technique et scientifique ont pour but d’identifier la nature de la charge explosive employée mais la tâche peut se révéler particulièrement difficile d’un point de vue analytique. En effet, les résidus de charge explosive sont le plus souvent présents à l’état de traces dans des matrices variées et difficiles à traiter d’où la nécessité de disposer de protocoles analytiques performants. Ces travaux ont tout d’abord consisté à développer une méthode d’analyse basée sur le couplage entre chromatographie en phase liquide et spectrométrie de masse. L’utilisation d’un support de séparation en carbone graphite poreux et l’optimisation du couplage a rendu possible l’analyse simultanée des explosifs organiques les plus couramment rencontrés. Les effets de matrice sur les performances de la méthode ont ensuite été évalués puis éliminés en partie avec la mise en place d’une procédure de purification de l’échantillon par extraction sur phase solide. Enfin, un protocole général de traitement de l’échantillon incluant les étapes d’extraction, de purification et de concentration a été proposé puis validé avec l’analyse d’échantillons réels obtenus lors de simulations d’attentats avec engins explosifs improvisés
Book Synopsis L'ANALYSE CHROMATOGRAPHIQUE EN PHASES LIQUIDE, GAZEUSE ET SUPERCRITIQUE D'ADDITIFS DE TRANSFORMATION DES POLYMERES by : DOMINIQUE.. DILETTATO
Download or read book L'ANALYSE CHROMATOGRAPHIQUE EN PHASES LIQUIDE, GAZEUSE ET SUPERCRITIQUE D'ADDITIFS DE TRANSFORMATION DES POLYMERES written by DOMINIQUE.. DILETTATO and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA CHROMATOGRAPHIE EN PHASE SUPERCRITIQUE (CPS) CAPILLAIRE QUI UTILISE LE DIOXYDE DE CARBONE COMME PHASE MOBILE EST SPECIALEMENT ADAPTEE A L'ANALYSE DE MELANGES COMPLEXES DE COMPOSES MODEREMENT POLAIRES, PEU VOLATILS OU THERMOSENSIBLES. SON APPLICATION A LA SEPARATION D'ADDITIFS DE TRANSFORMATION DES POLYMERES DANS DES PLASTIQUES S'EST AVEREE TOUT A FAIT INTERESSANTE. POUR LES ADDITIFS ANALYSES, SES PERFORMANCES ONT ETE COMPAREES A CELLES DE LA CHROMATOGRAPHIE EN PHASE LIQUIDE HAUTE PERFORMANCE ET A CELLES DE LA CHROMATOGRAPHIE EN PHASE GAZEUSE HAUTE TEMPERATURE. LA CPS CAPILLAIRE S'EST REVELEE ETRE LA TECHNIQUE LA PLUS PERFORMANTE. PAR AILLEURS, LES ESSAIS PRELIMINAIRES REALISES SUR SON COUPLAGE A LA SPECTROMETRIE DE MASSE AVEC LES ADDITIFS LES PLUS LOURDS ONT FOURNI DES RESULTATS PROMETTEURS
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 ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.
Book Synopsis Karen's New Bike (Baby-Sitters Little Sister #62) by : Ann M. Martin
Download or read book Karen's New Bike (Baby-Sitters Little Sister #62) written by Ann M. Martin and published by Scholastic Inc.. This book was released on 2016-05-31 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt: From the bestselling author of the generation-defining series The Baby-sitters Club comes a series for a new generation! Yikes, My Bike! Karen is learning all about bike safety in school. She is even going to enter a bike-a-thon. But Karen’s bike is too small for her. So with Daddy’s help, Karen buys a new bike. Then Karen’s new bike is stolen. Can Karen catch the thief and get her bike back?
Book Synopsis Organochlorine Insecticides by : F. Moriarty
Download or read book Organochlorine Insecticides written by F. Moriarty and published by . This book was released on 1975 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Monitoring persistent organic pollhitants; exposure and residues; variationin the intake and elimination of pollutants; the role of the thy roid in the production of sublethal effec by organochlorine insecticides and polychlorine insecticides on amimal populations; persistent percides an economic and legal analysis.
Book Synopsis Medicinal Plants in the Asia Pacific for Zoonotic Pandemics, Volume 1 by : Christophe Wiart
Download or read book Medicinal Plants in the Asia Pacific for Zoonotic Pandemics, Volume 1 written by Christophe Wiart and published by CRC Press. This book was released on 2021-06-30 with total page 587 pages. Available in PDF, EPUB and Kindle. Book excerpt: Medicinal Plants in the Asia Pacific for Zoonotic Pandemics provides an unprecedented, comprehensive overview of the phylogeny, botany, ethnopharmacology, and pharmacology of more than 100 plants used in the traditional medical systems of Asia and Pacific. It discusses their actions and potentials against viruses, bacteria, and fungi that represent a threat of epidemic and pandemic diseases, with an emphasis on the molecular basis and cellular pathways. This book presents scientific names, the botanical classification, traditional medicinal uses, active chemical constituents, and pharmacology. This volume is a critical reference for anyone involved in the discovery of lead molecules or phytopharmaceutical products for the prevention or treatment of pandemic viral, bacterial, or fungal infections. FEATURES Phylogenetic presentation of medicinal plants and a chemotaxonomical rationale of antiviral, antibacterial, and antifungal actions Discusses the chemical structure–activity relationship, pharmacokinetics, and oral bioavailability of antimicrobial principles Introduces the molecular mechanism of natural products on viruses, bacteria, and fungi Contains a selection of botanical plates and useful bibliographic references This book is a useful research tool for postgraduates, academics, and the pharmaceutical, herbal, and nutrition industries. Medicinal Plants in the Asia Pacific for Zoonotic Pandemics includes commentary sections that invite further research and reflection on the fascinating and timely subject of the development of drugs and herbals from Asia-Pacific medicinal plants to safeguard humanity and other life forms against the forthcoming waves of viral, bacterial, or fungal pandemics. This book is an ideal reference text for medicinal plant enthusiasts.
Book Synopsis Description and Sampling of Contaminated Soils by : J. Russell Boulding
Download or read book Description and Sampling of Contaminated Soils written by J. Russell Boulding and published by Routledge. This book was released on 2017-09-29 with total page 239 pages. Available in PDF, EPUB and Kindle. Book excerpt: This second edition of EPA's bestselling book, Description and Sampling of Contaminated Soils: A Field Guide, Second Edition, has been revised and significantly expanded over the original edition. An ideal reference for anyone involved in site investigations, this guide describes how to determine the amount and extent of soil contamination and potential for movement of contaminants in the soil and groundwater. It contains checklists, tables, and step-by-step descriptions of methods and procedures for: Cost-effective, detailed site investigations for evaluating the potential for contaminant transport Field collection of information on soil engineering properties required for remediation selection and design This guide also features an adaptation of soil description procedures used by the U.S. Soil Conservation Service (SCS) for investigating contaminated sites. The SCS soil description and classification procedures, when used in combination with the Unified Soil Classification System currently used by geologists and engineers, greatly improves contaminated site assessments.
Download or read book Trichier written by Alessandra Ceretto and published by Lulu.com. This book was released on with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Encapsulations by : Alexandru Grumezescu
Download or read book Encapsulations written by Alexandru Grumezescu and published by Academic Press. This book was released on 2016-05-27 with total page 926 pages. Available in PDF, EPUB and Kindle. Book excerpt: Encapsulations, a volume in the Nanotechnology in the Agri-Food Industry series,presents key elements in establishing food quality through the improvement of food flavor and aroma. The major benefits of nanoencapsulation for food ingredients include improvement in bioavailability of flavor and aroma ingredients, improvement in solubility of poor water-soluble ingredients, higher ingredient retention during production process, higher activity levels of encapsulated ingredients, improved shelf life, and controlled release of flavor and aroma. This volume discusses main nanoencapsulation processes such as spray drying, melt injection, extrusion, coacervation, and emulsification. The materials used in nanoencapsulation include lipids, proteins, carbohydrates, cellulose, gums, and food grade polymers. Applications and benefits of nanoencapsulation such as controlled release, protections, and taste masking will be explained in detail. Includes the most up-to-date information on nanoencapsulation and nanocontainer-based delivery of antimicrobials Presents nanomaterials for innovation based on scientific advancements in the field Provides control release strategies to enhance bioactivity, including methods and techniques for research and innovation Provides useful tools to improve the delivery of bioactive molecules and living cells into foods
Book Synopsis In-Situ Gelling Polymers by : Xian Jun Loh
Download or read book In-Situ Gelling Polymers written by Xian Jun Loh and published by Springer. This book was released on 2014-10-01 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the research involving in situ gelling polymers and can be used as a guidebook for academics, industrialists and postgraduates interested in this area. This work summaries the academic contributions from the top authorities in the field and explore the fundamental principles of in situ gelling polymeric networks, along with examples of their major applications. This book aims to provide an up-to-date resource of in situ gelling polymer research.
Download or read book Wood Adhesives written by Antonio Pizzi and published by CRC Press. This book was released on 2011-01-07 with total page 464 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wood adhesives are of tremendous industrial importance, as more than two-thirds of wood products in the world today are completely or partially bonded together using a variety of adhesives. Adhesive bonding offers many advantages over other joining methods for wood components, and there has been a great deal of R& D activity in devising new wood adhesives or improving the existing ones. The modern mantra in all industrial sectors is: "think green, go green," which has attracted much attention in the wood adhesive industry. Therefore, there is also a lot of research activity in synthesizing environmentally benign and human-friendly wood adhesives. This book is divided into four parts: Part 1: Fundamental Adhesion Aspects in Wood Bonding; Part 2: Synthetic Adhesives; Part 3: Environment-friendly adhesives; and Part 4: Wood Welding and General Paper. It addresses many different types of wood adhesives, as well as bonding (welding) of wood components without adhesives, a more recent development. The information contained in this book is valuable for individuals engaged in all aspects of wood adhesion and adhesives and, hopefully, will inspire new ideas in wood adhesives, a topic of vital industrial importance.
Book Synopsis Physical, Chemical, and Thermal Technologies by : Godage B. Wickramanayake
Download or read book Physical, Chemical, and Thermal Technologies written by Godage B. Wickramanayake and published by . This book was released on 1998 with total page 532 pages. Available in PDF, EPUB and Kindle. Book excerpt: - Thermal Desorption- In Situ Thermal Technologies- Plasma Technologies- In Situ Steam Processes- Soil Vapor Extraction/Multiphase Extraction- Enhancements to Pump-and-Treat-Systems- Groundwater Circulating Wells- Air Sparging- Dehalogenation Technologies- Oxidation Technologies- Photo-, Electro-, and Catalytic Mechanisms.
Download or read book Advances in Polymer Science written by and published by . This book was released on 1985 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Forest Fire Research by : Universidade de Coimbra
Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:
