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Elsevier

Libros en Química

  • High Resolution NMR Spectroscopy: Understanding Molecules and their Electronic Structures

    • 1 Edición
    • Volumen 3
    • Inglés
    The progress in nuclear magnetic resonance (NMR) spectroscopy that took place during the last several decades is observed in both experimental capabilities and theoretical approaches to study the spectral parameters. The scope of NMR spectroscopy for studying a large series of molecular problems has notably broadened. However, at the same time, it requires specialists to fully use its potentialities. This is a notorious problem and it is reflected in the current literature where this spectroscopy is typically only used in a routine way. Also, it is seldom used in several disciplines in which it could be a powerful tool to study many problems. The main aim of this book is to try to help reverse these trends.This book is divided in three parts dealing with 1) high-resolution NMR parameters; 2) methods for understanding high-resolution NMR parameters; and 3) some experimental aspects of high-resolution NMR parameters for studying molecular structures. Each part is divided into chapters written by different specialists who use different methodologies in their work. In turn, each chapter is divided into sections. Some features of the different sections are highlighted: it is expected that part of the readership will be interested only in the basic aspects of some chapters, while other readers will be interested in deepening their understanding of the subject dealt with in them.

  • Chemometrics in Food Chemistry

    • 1 Edición
    • Volumen 28
    • Inglés
    The issues related to food science and authentication are of particular importance for researchers, consumers and regulatory entities. The need to guarantee quality foodstuff – where the word "quality" encompasses many different meanings, including e.g. nutritional value, safety of use, absence of alteration and adulterations, genuineness, typicalness, etc. – has led researchers to look for increasingly effective tools to investigate and deal with food chemistry problems. As even the simplest food is a complex matrix, the way to investigate its chemistry cannot be other than multivariate. Therefore, chemometrics is a necessary and powerful tool for the field of food analysis and control. For food science in general and food analysis and control in particular, there are several problems for which chemometrics are of utmost importance. Traceability, i.e. the possibility of verifying the animal/botanical, geographical and/or productive origin of a foodstuff, is, for instance, one area where the use of chemometric techniques is not only recommended but essential: indeed, at present no specific chemical and/or physico-chemical markers have been identified that can be univocally linked to the origin of a foodstuff and the only way of obtaining reliable traceability is by means of multivariate classification applied to experimental fingerprinting results. Another area where chemometrics is of particular importance is in building the bridge between consumer preferences, sensory attributes and molecular profiling of food: by identifying latent structures among the data tables, bilinear modeling techniques (such as PCA, MCR, PLS and its various evolutions) can provide an interpretable and reliable connection among these domains. Other problems include process control and monitoring, the possibility of using RGB or hyperspectral imaging techniques to nondestructively check food quality, calibration of multidimensional or hyphenated instruments etc.

  • Annual Reports on NMR Spectroscopy

    • 1 Edición
    • Volumen 79
    • Graham A. Webb
    • Inglés
    NMR is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has gained such significance as NMR spectroscopy. It is used in all branches of science in which precise structural determination is required and in which the nature of interactions and reactions in solution is being studied. Annual Reports on NMR Spectroscopy has established itself as a premier means for the specialist and non-specialist alike to become familiar with new techniques and applications of NMR spectroscopy.

  • Mathematics for Physical Chemistry

    • 4 Edición
    • Robert G. Mortimer
    • Inglés
    Mathematics for Physical Chemistry is the ideal supplementary text for practicing chemists and students who want to sharpen their mathematics skills while enrolled in general through physical chemistry courses. This book specifically emphasizes the use of mathematics in the context of physical chemistry, as opposed to being simply a mathematics text. This 4e includes new exercises in each chapter that provide practice in a technique immediately after discussion or example and encourage self-study. The early chapters are constructed around a sequence of mathematical topics, with a gradual progression into more advanced material. A final chapter discusses mathematical topics needed in the analysis of experimental data.

  • Chemistry of Plant Phosphorus Compounds

    • 1 Edición
    • Arlen Frank
    • Inglés
    Provides a high level reference source for scientists engaged in any aspect of plant research − chemistry, biochemistry or physiology − with primary focus on the chemistry of phosphorus-containin... compounds that occur naturally in the plant kingdom, and specifically in the higher plants (Plantae). The book is comprehensive with respect to nomenclature, physical properties, and distribution worldwide. There are many tables of actual data on phosphorus compounds occurring in whole plants and parts of plants. The tables provide detailed data that is needed by the food industry, agriculture, etc as many of the phosphorus compounds are common to both plants and animals. Two appendices cover other aspects including changes in phosphorus-containin... compounds during germination and their accumulation during growth and senescence. The final sections of the book comprise separate indexes of plants, compounds and authors.

  • Sulfuric Acid Manufacture

    Analysis, Control and Optimization
    • 2 Edición
    • Matt King + 2 más
    • Inglés
    By some measure the most widely produced chemical in the world today, sulfuric acid has an extraordinary range of modern uses, including phosphate fertilizer production, explosives, glue, wood preservative and lead-acid batteries. An exceptionally corrosive and dangerous acid, production of sulfuric acid requires stringent adherence to environmental regulatory guidance within cost-efficient standards of production. This work provides an experience-based review of how sulfuric acid plants work, how they should be designed and how they should be operated for maximum sulfur capture and minimum environmental impact. Using a combination of practical experience and deep physical analysis, Davenport and King review sulfur manufacturing in the contemporary world where regulatory guidance is becoming ever tighter (and where new processes are being required to meet them), and where water consumption and energy considerations are being brought to bear on sulfuric acid plant operations. This 2e will examine in particular newly developed acid-making processes and new methods of minimizing unwanted sulfur emissions. The target readers are recently graduated science and engineering students who are entering the chemical industry and experienced professionals within chemical plant design companies, chemical plant production companies, sulfuric acid recycling companies and sulfuric acid users. They will use the book to design, control, optimize and operate sulfuric acid plants around the world.

  • Introduction to Biological and Small Molecule Drug Research and Development

    Theory and Case Studies
    • 1 Edición
    • C. Robin Ganellin + 2 más
    • Inglés
    Introduction to Biological and Small Molecule Drug Research and Development provides, for the first time, an introduction to the science behind successful pharmaceutical research and development programs. The book explains basic principles, then compares and contrasts approaches to both biopharmaceuticals (proteins) and small molecule drugs, presenting an overview of the business and management issues of these approaches. The latter part of the book provides carefully selected real-life case studies illustrating how the theory presented in the first part of the book is actually put into practice. Studies include Herceptin/T-DM1, erythropoietin (Epogen/Eprex/NeoRec... anti-HIV protease inhibitor Darunavir, and more. Introduction to Biological and Small Molecule Drug Research and Development is intended for late-stage undergraduates or postgraduates studying chemistry (at the biology interface), biochemistry, medicine, pharmacy, medicine, or allied subjects. The book is also useful in a wide variety of science degree courses, in post-graduate taught material (Masters and PhD), and as basic background reading for scientists in the pharmaceutical industry.

  • Rotational Structure in Molecular Infrared Spectra

    • 1 Edición
    • Carlo di Lauro
    • Inglés
    Recent advances in infrared molecular spectroscopy have resulted in sophisticated theoretical and laboratory methods that are difficult to grasp without a solid understanding of the basic principles and underlying theory of vibration-rotation absorption spectroscopy. Rotational Structure in Molecular Infrared Spectra fills the gap between these recent, complex topics and the most elementary methods in the field of rotational structure in the infrared spectra of gaseous molecules. There is an increasing need for people with the skills and knowledge to interpret vibration-rotation spectra in many scientific disciplines, including applications in atmospheric and planetary research. Consequently, the basic principles of vibration-rotation absorption spectroscopy are addressed for contemporary applications. In addition to covering operational quantum mechanical methods, spherical tensor algebra, and group theoretical methods applied to molecular symmetry, attention is also given to phase conventions and their effects on the values of matrix elements. Designed for researchers and PhD students involved in the interpretation of vibration-rotation spectra, the book intentionally separates basic theoretical arguments (in the appendices), allowing readers who are mainly concerned with applications to skip the principles while at the same time providing a sound theoretical basis for readers who are looking for more foundational information.

  • Inorganic Chemistry

    • 2 Edición
    • William W. Porterfield
    • Inglés
    This is one of the few books available that uses unifying theoretical concepts to present inorganic chemistry at the advanced undergraduate and graduate levels--most texts are organized around the periodic table, while this one is structured after bonding models, structure types, and reaction patterns. But the real strength of Porterfield's Second Edition is its clear presentation of ample background description, especially in recent areas of development such as cluster molecules, industrial catalysis, and bio-inorganic chemistry. This information will enable students to understand most current journals, empowering them to stay abreast of the latest advances in the field. Specific improvements of the Second Edition include new chapters on materials-science applications and bioinorganic chemistry, an extended discussion of transition-metal applications (including cuprate superconductors), and extended Tanabe-Sugano diagrams.

  • Phase Equilibrium Engineering

    • 1 Edición
    • Volumen 3
    • Esteban Alberto Brignole + 1 más
    • Inglés
    Traditionally, the teaching of phase equilibria emphasizes the relationships between the thermodynamic variables of each phase in equilibrium rather than its engineering applications. This book changes the focus from the use of thermodynamics relationships to compute phase equilibria to the design and control of the phase conditions that a process needs. Phase Equilibrium Engineering presents a systematic study and application of phase equilibrium tools to the development of chemical processes. The thermodynamic modeling of mixtures for process development, synthesis, simulation, design and optimization is analyzed. The relation between the mixture molecular properties, the selection of the thermodynamic model and the process technology that could be applied are discussed. A classification of mixtures, separation process, thermodynamic models and technologies is presented to guide the engineer in the world of separation processes. The phase condition required for a given reacting system is studied at subcritical and supercritical conditions. The four cardinal points of phase equilibrium engineering are: the chemical plant or process, the laboratory, the modeling of phase equilibria and the simulator. The harmonization of all these components to obtain a better design or operation is the ultimate goal of phase equilibrium engineering.

  • Volatile Biomarkers

    Non-Invasive Diagnosis in Physiology and Medicine
    • 1 Edición
    • Cristina Davis + 1 más
    • Inglés
    Volatile organic compounds (VOCs) in exhaled breath, sweat or urine carry much information on the state of human health. The role of VOCs in clinical diagnosis and therapeutic monitoring is expected to become increasingly significant due to recent advances in the field. Volatile Biomarkers: Non-Invasive Diagnosis in Physiology and Medicine includes the latest discoveries and applications for VOCs from the world's foremost scientists and clinicians working in this emerging analytic area.

  • Low-Abundance Proteome Discovery

    State of the Art and Protocols
    • 1 Edición
    • Egisto Boschetti + 1 más
    • Inglés
    Low-Abundance Proteome Discovery addresses the most critical challenge in biomarker discovery and progress: the identification of low-abundance proteins. The book describes an original strategy developed by the authors that permits the detection of protein species typically found in very low abundance and that may yield valuable clues to future discoveries. Known as combinatorial peptide ligand libraries, these new methodologies are one of the hottest topics related to the study of proteomics and have applications in medical diagnostics, food quality, and plant analysis. The book is written for university and industry scientists starting proteomic studies of complex matrices (e.g., biological fluids, biopsies, recalcitrant plant tissues, foodstuff, and beverage analysis), researchers doing wet chemistry, and graduate-level students in the areas of analytical and biochemistry, biology, and genetics.

  • Studies in Natural Products Chemistry

    • 1 Edición
    • Volumen 39
    • Inglés
    Natural products present in the plant and animal kingdom offer a huge diversity of chemical structures, which are the result of biosynthetic processes that have been modulated over the millennia through genetic effects. With the rapid developments in spectroscopic techniques and accompanying advances in high-throughput screening techniques, it has become possible to isolate and then determine the structures and biological activity of natural products rapidly, thus opening up to the pharmaceutical industry exciting opportunities in the field of new drug development. The series covers all of the above as well as the synthesis, testing and recording of the medicinal properties of natural products.

  • Heterogeneous Catalysis of Mixed Oxides

    Perovskite and Heteropoly Catalysts
    • 1 Edición
    • Volumen 176
    • M. Misono
    • Inglés
    Mixed oxides are the most widely used catalyst materials for industrial catalytic processes. The principal objective of this book is to describe systematically the mixed oxide catalysts, from their fundamentals through their practical applications. After describing concisely general items concerning mixed oxide and mixed oxide catalysts, two important mixed oxide catalyst materials, namely, heteropolyacids and perovskites, are taken as typical examples and discussed in detail. These two materials have several advantages: 1. They are, respectively, typical examples of salts of oxoacids and double oxide, that is, the two main categories of mixed oxides in solid state chemistry. 2. Both exhibit excellent catalytic performance in nearly crystalline state and are used in several industrial applications. 3. They have studied for many years. In addition, metal oxides functioning as a catalyst support (carrier) are included. Although the supports are very important in practical applications, and tremendous progress has been made in the past decades, few systematic reviews exist. It is notable that heteropolyacids and perovskite exhibit unique performance when used as a support. Fundamental catalytic science and technology and solid state chemistry necessary is presented for the proper understanding of mixed oxide catalysts as well as for R&D. For the latter, the concept of design of practical catalysts is very important. This is considered throughout the book.

  • Characterization of Semiconductor Heterostructures and Nanostructures

    • 2 Edición
    • Giovanni Agostini + 1 más
    • Inglés
    Characterization of Semiconductor Heterostructures and Nanostructures” is structured so that each chapter is devoted to a specific characterization technique used in the understanding of the properties (structural, physical, chemical, electrical etc..) of semiconductor quantum wells and superlattices. An additional chapter is devoted to ab initio modeling. The book has two basic aims. The first is educational, providing the basic concepts of each of the selected techniques with an approach understandable by advanced students in Physics, Chemistry, Material Science, Engineering, Nanotechnology. The second aim is to provide a selected set of examples from the recent literature of the TOP results obtained with the specific technique in understanding the properties of semiconductor heterostructures and nanostructures. Each chapter has this double structure: the first part devoted to explain the basic concepts, and the second to the discussion of the most peculiar and innovative examples. The topic of quantum wells, wires and dots should be seen as a pretext of applying top level characterization techniques in understanding the structural, electronic etc properties of matter at the nanometer (and even sub-nanometer) scale. In this respect it is an essential reference in the much broader, and extremely hot, field of Nanotechnology.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 109
    • Alan R. Katritzky
    • Inglés
    Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area—one of great importance to organic chemists, polymer chemists and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

  • Annual Reports on NMR Spectroscopy

    • 1 Edición
    • Volumen 78
    • Graham A. Webb
    • Inglés
    Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has gained such significance as NMR spectroscopy. It is used in all branches of science in which precise structural determination is required and in which the nature of interactions and reactions in solution is being studied. Annual Reports on NMR Spectroscopy has established itself as a premier means for the specialist and non-specialist alike to become familiar with new techniques and applications of NMR spectroscopy.

  • The Alkaloids

    • 1 Edición
    • Volumen 72
    • Inglés
    This series is world-renowned as the leading compilation of current reviews of this vast field. Internationally acclaimed for more than 40 years, The Alkaloids, founded by the late Professor R.H.F. Manske, continues to provide outstanding coverage of this rapidly expanding field. Each volume provides, through its distinguished authors, up-to-date and detailed coverage of particular classes or sources of alkaloids.

  • Progress in Medicinal Chemistry

    • 1 Edición
    • Volumen 52
    • Inglés
    Progress in Medicinal Chemistry provides a review of eclectic developments in medicinal chemistry. This volume continues in the serial's tradition of providing an insight into the skills required of the modern medicinal chemist; in particular, the use of an appropriate selection of the wide range of tools now available to solve key scientific problems.

  • The Immunoassay Handbook

    Theory and Applications of Ligand Binding, ELISA and Related Techniques
    • 4 Edición
    • David Wild
    • Inglés
    The fourth edition of The Immunoassay Handbook provides an excellent, thoroughly updated guide to the science, technology and applications of ELISA and other immunoassays, including a wealth of practical advice. It encompasses a wide range of methods and gives an insight into the latest developments and applications in clinical and veterinary practice and in pharmaceutical and life science research. Highly illustrated and clearly written, this award-winning reference work provides an excellent guide to this fast-growing field. Revised and extensively updated, with over 30% new material and 77 chapters, it reveals the underlying common principles and simplifies an abundance of innovation. The Immunoassay Handbook reviews a wide range of topics, now including lateral flow, microsphere multiplex assays, immunohistochemistry... practical ELISA development, assay interferences, pharmaceutical applications, qualitative immunoassays, antibody detection and lab-on-a-chip. This handbook is a must-read for all who use immunoassay as a tool, including clinicians, clinical and veterinary chemists, biochemists, food technologists, environmental scientists, and students and researchers in medicine, immunology and proteomics. It is an essential reference for the immunoassay industry. Provides an excellent revised guide to this commercially highly successful technology in diagnostics and research, from consumer home pregnancy kits to AIDS testing.www.immunoas... is a great resource that we put a lot of effort into. The content is designed to encourage purchases of single chapters or the entire book. David Wild is a healthcare industry veteran, with experience in biotechnology, pharmaceuticals, medical devices and immunodiagnostics, which remains his passion. He worked for Amersham, Eastman-Kodak, Johnson & Johnson, and Bristol-Myers Squibb, and consulted for diagnostics and biotechnology companies. He led research and development programs, design and construction of chemical and biotechnology plants, and integration of acquired companies. Director-level positions included Research and Development, Design Engineering, Operations and Strategy, for billion dollar businesses. He retired from full-time work in 2012 to focus on his role as Editor of The Immunoassay Handbook, and advises on product development, manufacturing and marketing.

  • Liquid Chromatography

    Fundamentals and Instrumentation
    • 1 Edición
    • Salvatore Fanali + 3 más
    • Inglés
    A single source of authoritative information on all aspects of the practice of modern liquid chromatography suitable for advanced students and professionals working in a laboratory or managerial capacity

  • Liquid Chromatography

    Applications
    • 1 Edición
    • Salvatore Fanali + 3 más
    • Inglés
    A single source of authoritative information on all aspects of the practice of modern liquid chromatography suitable for advanced students and professionals working in a laboratory or managerial capacity

  • Pyridines: From Lab to Production

    • 1 Edición
    • Eric F.V. Scriven
    • Inglés
    Pyridines: From Lab to Production provides a synthetic armory of tools to aid the practicing chemist by reviewing the most reliable historical methods alongside new methods/ Written by scientists who have actually used these in synthesis. By emphasizing tricks and tips to optimize reactions for the best yields and purity, which are often missing from the primary literature, this book provides another dimension for the synthetic chemist. A combined academic and industrial approach evaluates the best methods for different scales of reaction and discusses practical tips (e.g. when to stop a reaction early to maximize purity or when to re-use side products). Chapters also assess whether to make or source starting materials, how to connect them and what are the best synthetic routes. The book is designed to be a stand-alone reference, but also provides cross references to leading reviews and the Comprehensive Heterocyclic Chemistry reference works for those who want to learn more.

  • Advances in Inorganic Chemistry

    Homogeneous Catalysis
    • 1 Edición
    • Volumen 65
    • Inglés
    The Advances in Inorganic Chemistry series present timely and informative summaries of the current progress in a variety of subject areas within inorganic chemistry, ranging from bio-inorganic to solid state studies. This acclaimed serial features reviews written by experts in the field and serves as an indispensable reference to advanced researchers. Each volume contains an index, and each chapter is fully referenced.

  • Proteomic Profiling and Analytical Chemistry

    The Crossroads
    • 1 Edición
    • Pawel Ciborowski + 1 más
    • Inglés
    Proteomic Profiling and Analytical Chemistry helps scientists without a strong background in analytical chemistry to understand basic analytical principles and apply them to proteomics profiling. In most proteomic profiling experiments, liquid chromatography is used; this method is also used widely in analytical chemistry. This book bridges the gap between overly specialized courses and books in mass spectrometry, proteomics and analytical chemistry. It also helps researchers with an analytical chemistry background to break into the proteomics field. Proteomic Profiling and Analytical Chemistry focuses on practical applications for proteomic research helping readers to design better experiments and to more easily interpret, analyze and validate the resulting data. Experimental aspects such as sample preparation, protein extraction and precipitation, gel electrophoresis, microarrays, dynamics of fluorescent dyes, and more are all covered in detail.

  • Practical Approaches to Biological Inorganic Chemistry

    • 1 Edición
    • Robert R. Crichton + 1 más
    • Inglés
    The book reviews the use of spectroscopic and related methods to investigate the complex structures and mechanisms of biological inorganic systems that contain metals. Each chapter presents an overview of the technique including relevant theory, clearly explains what it is and how it works and then presents how the technique is actually used to evaluate biological structures. Practical examples and problems are included to illustrate each technique and to aid understanding. Designed for students and researchers who want to learn both the basics, and more advanced aspects of bioinorganic chemistry.

  • Encyclopedia of the Alkaline Earth Compounds

    • 1 Edición
    • Richard C. Ropp
    • Inglés
    Encyclopedia of the Alkaline Earth Compounds is a compilation describing the physical and chemical properties of all of the alkaline earth compounds that have been elucidated to date in the scientific literature. These compounds are used in applications such as LEDs and electronic devices such as smart phones and tablet computers. Preparation methods for each compound are presented to show which techniques have been successful. Structures and phase diagrams are presented where applicable to aid in understanding the complexities of the topics discussed. With concise descriptions presenting the chemical, physical and electrical properties of any given compound, this subject matter will serve as an introduction to the field. This compendium is vital for students and scientific researchers in all fields of scientific endeavors, including non-chemists.

  • Fluorescence Fluctuation Spectroscopy (FFS), Part A

    • 1 Edición
    • Volumen 518
    • Inglés
    This new volume of Methods in Enzymology continues the legacy of this premier serial by containing quality chapters authored by leaders in the field. This volume covers Fluorescence Fluctuation SpectroscopyContains chapters on such topics as Time-integrated fluorescence cumulant analysis, Pulsed Interleaved Excitation, and raster image correlation spectroscopy and number and brightness analysis.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 108
    • Alan R. Katritzky
    • Inglés
    Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area—one of great importance to organic chemists, polymer chemists and many biological scientists. Written by established authorities in the field, the comprehensive reviews combine descriptive chemistry and mechanistic insight and yield an understanding of how the chemistry drives the properties.

  • Advances in Carbohydrate Chemistry and Biochemistry

    • 1 Edición
    • Volumen 68
    • Inglés
    Since its inception in 1945, this serial has provided critical and integrating articles written by research specialists that integrate industrial, analytical, and technological aspects of biochemistry, organic chemistry, and instrumentation methodology in the study of carbohydrates. The articles provide a definitive interpretation of the current status and future trends in carbohydrate chemistry and biochemistry.

  • Liquid Glass Transition

    A Unified Theory From the Two Band Model
    • 1 Edición
    • Toyoyuki Kitamura
    • Inglés
    A glass is disordered material like a viscous liquid and behaves mechanically like a solid. A glass is normally formed by supercooling the viscous liquid fast enough to avoid crystallization, and the liquid-glass transition occurs in diverse manners depending on the materials, their history, and the supercooling processes, among other factors. The glass transition in colloids, molecular systems, and polymers is studied worldwide. This book presents a unified theory of the liquid-glass transition on the basis of the two band model from statistical quantum field theory associated with the temperature Green’s function method. It is firmly original in its approach and will be of interest to researchers and students specializing in the glass transition across the physical sciences.

  • Orbital Symmetry

    A Problem - Solving Approach
    • 1 Edición
    • Roland Lehr
    • Inglés
    Orbital Symmetry: A Problem-Solving Approach reviews the methods of analyzing pericyclic reactions. Problem solving is the foundation of this book, providing problems in introductory and theory sections to prepare readers for the more extensive chapters that follow. All problems, except those in Chapter VIII, are answered in this text and are fully referenced where appropriate. Many of the problems require the use of molecular models, while Prentice-Hall's “Framework Molecular Models” and Benjamin's “Maruzen Models” are best suited for the construction of the highly strained molecules. This publication is addressed primarily to advanced undergraduate and beginning graduate students concerned with analyzing pericyclic reactions.

  • Nuclear Magnetic Resonance Shift Reagents

    • 1 Edición
    • Robert Sievers
    • Inglés
    Nuclear Magnetic Shift Reagents presents the proceedings of the Symposium on the Chemistry of Nuclear Magnetic Resonance Shift Reagents, held in Dallas, Texas, on April 9–11, 1973. This book discusses the fundamental aspects of shift reagent chemistry as well as the physical and chemical properties of shift reagents. Comprised of 16 chapters, this compilation of papers starts with an overview of the deuterium isotope effect in lanthanide shifts. This text then examines the variations in coordination geometries for chemically equivalent molecules of shift reagent-substrate complexes in the solid state, which illustrate the ease with which changes occur in the coordination sphere of lanthanide complexes. Other chapters discuss the dipolar nature of proton resonance shifts in lanthanide shift reagent systems. This book considers as well the feasibility of using chiral shift reagents. The final chapter deals with the effects of chemical equilibrium and adduct stoichiometry in studies of shift reagent. Chemists, biochemists, and molecular physicists will find this book useful.

  • Handbook of Preparative Inorganic Chemistry V2

    • 2 Edición
    • Georg Brauer
    • Inglés
    Handbook of Preparative Inorganic Chemistry, Volume 2, Second Edition focuses on the methods, mechanisms, and chemical reactions involved in conducting experiments on inorganic chemistry. Composed of contributions of various authors, the second part of the manual focuses on elements and compounds. Included in the discussions are copper, silver, and gold. Numerical calculations and diagrams are presented to show the properties, compositions, and chemical reactions of these materials when exposed to varying laboratory conditions. The manual also looks at other elements such as scandium, yttrium, titanium, zirconium, hafnium, and thorium. Lengthy discussions on the characteristics and nature of these elements are presented. The third part of the guidebook discusses special compounds. The manual also provides formula and subject index, including an index for procedures, materials, and devices. Considering the value of information presented, the manual can best serve the interest of readers and scientists wanting to institute a system in the conduct of experiments in laboratories.

  • The Proteins Pt 3

    • 3 Edición
    • Hans Neurath
    • Inglés
    The Proteins, Volume III, Third Edition deals with the structure of proteins in terms of composition, amino acid sequence, and three-dimensional conformation. Special consideration is given to sulfur and the sulfur-containing amino acids because of their unique contribution to the structure and reactivity of certain proteins. The book reviews the strategies and procedures for determining the amino acid sequence of a protein. The "spinning-cup" sequenator method of Edman and Begg; the role of sulfur in proteins; and the three-dimensional structure of some crystalline proteins by X-ray diffraction analysis are covered as well. Protein chemists, medical and biological researchers, and students who require more knowledge of protein chemistry will find the book extremely useful.

  • Spectroscopy of Crystals Containing Rare Earth Ions

    • 1 Edición
    • Volumen 21
    • A.A. Kaplyanskii + 1 más
    • Inglés
    ``Spectroscopy of Crystals Containing Rare Earth Ions'' contains chapters on some key problems selected from a broad range of spectroscopic studies of RE-activated solids including both crystalline and glassy materials. Progress in crystal field theory is surveyed, an area which is basic to our understanding of the energy levels. The treatment of dynamical properties includes studies of coherence phenomena in isolated ions, energy transfer between ions and co-operative phenomena associated with ion-ion and ion-lattice interactions. In addition, the role of electron spins and nuclear spins is studied by light scattering and double resonance techniques. The presence of inhomogeneous broadening of spectral lines is observed and studied in many contexts, leading to new insights into general problems of the disordered state. Considerable attention is devoted to describing new experimental techniques whose development is of prime importance for progress in the spectroscopy of RE-activated solids. Many of these rely on the development and application of tunable lasers. At the moment this is a very active field of spectroscopy with more exciting developments likely to occur in the future.

  • The Chemistry of Indoles

    • 1 Edición
    • Richard Sundberg
    • Inglés
    Organic Chemistry, Volume 18: The Chemistry of Indoles discusses the chemistry of indole derivatives. This book explores the potent biological activity of several indole derivatives and explains the structure of indole alkaloids. Organized into 10 chapters, this monograph starts with an overview of the most important types of reactions of the indole ring on a mechanical basis. This text then proceeds to review the methods of synthesizing indoles and describes the oxidations and rearrangements of indole derivatives. Other chapters explore the special features of the synthesis and reactivity of hydroxyindoles, acylindoles, and aminoindoles. This book discusses as well the properties of carboxyl groups, which is substituted on the benzenoid ring of the indole nucleus that is typical of aromatic carboxylic acids. The final chapter deals with the certain classes of indoles that are found in nature. Chemists, researchers, and readers interested in the chemistry of indoles will find this book extremely useful.

  • The Organic Chemistry of Nickel

    Organonickel Complexes
    • 1 Edición
    • P.W. Jolly
    • Inglés
    The Organic Chemistry of Nickel, Volume I: Organonickel Complexes is devoted to a description of the organonickel complexes. The major goal is to provide a reference work, and for this reason a conventional layout has been adopted with separate chapters devoted to each type of organic ligand. In the interest of readability, known compounds have been assembled in tables at the end of each chapter, thereby allowing the text to be used for discussions of the general chemistry involved and to highlight the special reactions associated with nickel. Conscious of the needs of organometallic chemists, the authors included systems in which no nickel-carbon bond is involved. Among these is a chapter on the tetrakisligand nickel complexes and sections on dioxygen and azobenzene complexes. The nitrosyl complexes and complexes containing a metal-metal bond—topics frequently considered to be part of the domain of the organometallic chemist—have not received individual attention. Tables of the observed bond distances in organonickel complexes are provided as an Appendix; a short list of the more important review articles relevant to each organic ligand can be found at the end of each chapter.

  • 19th International Congress on Heterocyclic Chemistry

    Book of Abstracts
    • 1 Edición
    • Robert M. Williams
    • Inglés
    This book presents the abstracts of the 19th International Congress of Heterocyclic Chemistry (19th ICHC) held in Fort Collins, Colorado, 10-15th August 2003 and provides the reader with a topical comprehensive reference source covering the latest developments in the heterocycles area. Each lecture from the 19th ICHC is presented as a one page abstract containing a textual summary of the lecture, including references, figures and contact details of the author(s).Papers are divided into the following sections: heterocyclic natural products, heterocycles in organic synthesis, bioactive heterocycles, heterocyclic materials &related topics, heterocyclic pharmaceuticals.

  • Activation Analysis Handbook

    • 1 Edición
    • R Koch
    • Inglés
    Activation Analysis Handbook focuses on the importance of activation analysis in the examination of trace elements in materials. The book contains examples of activation analysis techniques and application of these techniques to provide solutions to problems in various scientific disciplines. Divided into four chapters, the book starts by giving an outline of the history and growth of activation analysis, including the general technique involved. The discussions proceed by taking into consideration the theoretical aspects of activation analysis, giving emphasis to basic concepts, sources of nuclear data and experimental methods, and selection of activation reactions. The book also considers the experimental methods in activation analysis. Other topics discussed are irradiation facilities; the preparation and encapsulation of samples; irradiations; and post-irradiation assays. The last part deals with the tabulation of elements and their corresponding atomic numbers; the key to tabulation; and a tabulation of nuclear data and experimental methods for activation analysis. The text is a good source of data for readers who are interested in activation analysis.

  • Modern Methods of Steroid Analysis

    • 1 Edición
    • Erich Heftmann
    • Inglés
    Modern Methods of Steroid Analysis reviews modern methods of steroid analysis such as liquid column chromatography, mass spectrometry, and gas chromatography. Topics covered include qualitative and quantitative analysis of plant sterols by gas-liquid chromatography; Raman spectroscopy of steroids; nuclear magnetic resonance; and applications of lanthanide shift reagents. A computerized method for rapid comparison and retrieval of infrared spectral data is also described. This volume is comprised of 22 chapters and begins with an analysis of hormonal steroids using liquid column chromatography, followed by a discussion on the separation of insect molting hormones using high-pressure liquid chromatography. The reader is methodically introduced to the application of gradient elution and thin-layer chromatography to the analysis of corticosteroids and 17-ketosteroids, as well as some aspects of mass spectrometry in steroid analysis. Subsequent chapters explore other methods such as optical rotatory dispersion and circular dichroism, along with radioisotope techniques. In particular, the radioimmunoassay of plasma steroid hormones and plasma aldosterone is considered. This book should be of interest to biochemists.

  • Active Nitrogen

    • 1 Edición
    • A. Nelson Wright
    • Inglés
    Active Nitrogen focuses on the experimental and theoretical investigations on active nitrogen. Divided into five chapters, the book starts by giving an introduction to the discovery of active nitrogen, the energy content, and the methods by which this may be produced. The succeeding part deals with light emissions from active nitrogen system. This discussion includes molecular spectrum of nitrogen, emission from atomic energy and condensed active nitrogen, emission from molecular species with electronic energy levels below and above 9.76 eV, and light-emitting systems of active nitrogen. The next part focuses on theories on active nitrogen. The theories discussed are long-lived Lewis-Rayleigh afterglow and short-lived, energetic afterglows. Numerical representations are provided to test the validity of the theories. Lastly, the discussions end with chemical reactions of active nitrogen. Topics contained in this part are text on recombination of N(4S) atoms; rate constants for reactions presumably induced by direct N(4S) attack; reactions caused by excited nitrogen molecular attack; and mechanism for reactions of active nitrogen that seem to influence direct N(4S) attack. The book is a valuable source of information for readers interested in the research on active nitrogen.

  • Ord and Cd in Chemistry and Biochemistry

    • 1 Edición
    • Pierre Crabbe
    • Inglés
    ORD and CD in Chemistry and Biochemistry: An Introduction essentially presents the necessary foreword and theoretical foundation for the useful application of optical rotatory dispersion (ORD) and circular dichroism (CD) to certain common chemical problems. This book emphasizes the precision of ORD and CD data in terms of stereochemical information. The book begins with some historical references and a concise review of basic principles on stereochemistry. It further delves onto the phenomena of optical activity. Also included are the definitions and units commonly used in ORD and CD. The book also discusses optical properties of polymers, organometallic, and inorganic derivatives; and some of the aspects of magnetic optical rotator dispersion (MORD) and magnetic circular dichroism (MCD). A table that presents wavelength range of the Cotton effects of most chromophoric groupings concludes the book. This monograph is a helpful reference to students as well as professionals from both chemistry and biochemistry fields of science.

  • Guide-Lines to Planning Atomic Spectrometric Analysis

    • 1 Edición
    • Volumen 4
    • B. Magyar
    • Inglés
    Studies in Analytical Chemistry, Volume 4: Guide-Lines to Planning Atomic Spectrometric Analysis covers the physico-chemical background of atomic absorption spectrometry (AAS) and atomic emission spectrometry (AES). This book is composed of six chapters and begins with an introduction to the criteria on choosing the best and most suitable method for solving a given analytical problem. The next chapters deal with the properties, generation, and absorption of electromagnetic radiation, as well as the theory of atomic spectra that require knowledge of X-ray. Other chapters discuss the broadening of atomic lines, which is important for understanding that calibration curves in AAS are always bent. A chapter examines the sensitivity of determination by AAS and AES. The last chapter describes the spectrometric measurement of atomic absorption and emission. This chapter also looks into the influence of the design of the monochromator upon the measured emission intensity and calibration curve by AAS. This book will prove useful to analytical chemists and researchers.

  • Standard Methods of Clinical Chemistry

    • 1 Edición
    • Miriam Reiner
    • Inglés
    Standard Methods of Clinical Chemistry, Volume I focuses on the methods used most frequently in the clinical laboratory. This book examines the scientific basis of each method, its scope, as well as its limitations. Organized into 19 chapters, this volume starts with an overview of the scope of the clinical chemist's responsibility, which includes the collection of the specimen for analysis, performance of the test, reporting the results to a responsible party, and interpretation of results to clinicians. This book then explores serum amylase activity, which may be demonstrated under several conditions of temperature, time, and substrate quality. Other chapters explore the significance of blood glucose determinations in the detection of diabetes mellitus and the control of this disease by evaluation of the various dosages of insulin. The final chapter deals with the methods for the estimation of uric acid. Clinical chemists, laboratory workers, and technicians will find this book extremely useful.

  • Chemical Bonds - Better Ways to Make Them and Break Them

    • 1 Edición
    • Bozzano G Luisa
    • Inglés
    Stereochemistry of Organometallic and Inorganic Compounds, Volume 3: Chemical Bonds—Better Ways to Make Them and Break Them focuses on the processes, methodologies, reactions, and approaches involved in the making and breaking of bonds. The selection first tackles heterometallic clusters in catalysis and steric and electronic effects on the photochemical reactions of metal-metal bonded carbonyls. Discussions focus on heterodinuclear metal carbonyls, hybrid catalysts prepared from molecular mixed-metal clusters, and heterometallic clusters in homogeneous catalysis. The book then examines the stereochemical aspects of organometallic clusters, including reactivity, dynamics, and the structures and rationalization of bonding in alkyne-substituted clusters. The publication takes a look at the stereochemistry of the Sakurai reaction, as well as intermolecular and intramolecular reactions, optically active allylsilanes, and other reactions. The selection is a highly recommended source of data for chemists and readers interested in the making and breaking of chemical bonds.

  • Inorganic Aspects of Biological and Organic Chemistry

    • 1 Edición
    • Robert Hanzlik
    • Inglés
    Inorganic Aspects of Biological and Organic Chemistry investigates the inorganic aspects of biological and organic chemistry. Topics include the inorganic chemistry of group Ia and IIa metals; complexes of Ia and IIa cations in organic and biological chemistry; atomic structure and structure-activity correlations; and bonding in ligands and metal complexes. Ligand exchange reactions and factors in complex stability are also discussed. Comprised of 12 chapters, this book begins with an overview of some of the important roles of metals in biological and organic chemistry, followed by an analysis of the inorganic chemistry of group Ia and IIa metals. Complexes of Ia and IIa cations in organic and biological chemistry are then described, together with atomic structure and structure-activity correlations. Subsequent chapters deal with bonding in ligands and metal complexes; ligand exchange reactions and factors in complex stability; redox potentials and processes; and the influence of metal ions on equilibria. The book also considers catalysis by metal ions, metal complexes, and metalloenzymes before concluding with a chapter that examines the reactions of ligands in organometallic complexes. This monograph is written for teachers, students, and practitioners of organic, biological, and inorganic chemistry.

  • Seismic Migration

    Imaging of Acoustic Energy by Wave Field Extrapolation
    • 1 Edición
    • A. J. Berkhout
    • Inglés
    Seismic Migration: Imaging of Acoustic Energy by Wave Field Extrapolation derives the migration theory from first principles. This book also obtains a formulated forward modeling and migration theory by introducing the propagation matrices and the scattering matrix. The book starts by presenting the basic results from vector analysis, such as the scalar product, gradient, curl, and divergence. It also describes the theorem of Stokes, theorem of Gause and the Green’s theorem. The book also deals with discrete spectral analysis, two-dimensional Fourier theory and plane wave analysis. It also describes the wave theory, including the plane waves and k-f diagram, spherical waves, and cylindrical waves. This book explores the forward problem and the inward problem of the wave field extrapolation, as well as the modeling by wave field extrapolation. Furthermore, the book explains the migration in the wave number-frequency domain. It also includes the summation approach and finite-difference approach to migration, as well as a comparison between the different approaches to migration. Finally, the book offers the limits of lateral resolution as the last chapter.

  • Bridged Aromatic Compounds

    • 1 Edición
    • Brandes Smith
    • Inglés
    Organic Chemistry, Volume 2: Bridged Aromatic Compounds covers the research studies on cyclophane chemistry, bridged ferrocenes, and other similar compounds. This volume contains 10 chapters. The first five chapters describe the nomenclature, synthesis, reactions, chemistry, and dissymmetry of bridged aromatic compounds. The subsequent four chapters discuss the application of selected analytical methods to delineate the chemistry of these compounds, including UV and infrared absorption spectroscopy, X-ray methods, and nuclear and electron magnetic resonance. The last chapter provides tabulations of the more common physical properties reported for bridged aromatic compounds. Organic chemists and researchers and undergraduate and graduate organic chemistry students will greatly appreciate this book.

  • Analytical Chemistry

    • 1 Edición
    • Clyde Frank
    • Inglés
    Analytical Chemistry, Second Edition covers the fundamental principles of analytical chemistry. This edition is organized into 30 chapters that present various analytical chemistry methods. This book begins with a core of six chapters discussing the concepts basic to all of analytical chemistry. The fundamentals, concepts, applications, calculations, instrumentation, and chemical reactions of five major areas of analytical chemistry, namely, neutralization, potentiometry, spectroscopy, chromatography, and electrolysis methods, are emphasized in separate chapters. Other chapters are devoted to a discussion of precipitation and complexes in analytical chemistry. Principles and applications and the relationship of these reactions to the other areas are stressed. The remaining chapters of this edition are devoted to the laboratory. A chapter discusses the basic laboratory operations, with an emphasis on safety. This topic is followed by a series of experiments designed to reinforce the concepts developed in the chapters. This book is designed for introductory courses in analytical chemistry, especially those shorter courses servicing chemistry majors and life and health science majors.

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