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Elsevier

Libros en Química

  • Advances in Magnetic and Optical Resonance

    Volume 15
    • 1 Edición
    • Warren S. Warren
    • Inglés
    Advances in Magnetic and Optical Resonance, Volume 15 focuses on the quantitative mathematical treatments of the nuclear magnetic resonance (NMR). This book discusses the iterative methods in the design of pulse sequences for NMR excitation; fixed point theory of iterative schemes; electron-nuclear polarization transfer in the nuclear rotating frame; and LF-and RF-DNP in doped polystyrene. The multipole NMR; solid state and solution NMR of non-classical transition metal polyhydrides; and dihydrogen complexes are also elaborated. This text likewise covers the quantum mechanical exchange in polyhydrides; low-frequency magnetic resonance with a dc SQUID and operating principles of the SQUID detector. This publication is a good source for students and researchers concerned with the application of NMR.

  • Spectroscopy and Photochemistry of Uranyl Compounds

    International Series of Monographs on Nuclear Energy
    • 1 Edición
    • Eugene Rabinowitch + 1 más
    • J. V. Dunworth
    • Inglés
    Spectroscopy and Photochemistry of Uranyl Compounds is a guide to the research and physics of the actinide elements, particularly the uranyl ion. The book is introduced with the subject of the spectroscopy of uranyl salts in the solid state. Studies dealing with the fluorescence and absorption spectra of solid uranyl salts through band measurements and empirical classification, term analysis, and fluorescence spectrum in relation to excitation by light of various wavelengths are then discussed. The book also mentions the analysis of the uranyl spectrum by Dieke and co-workers, because of the precise measurements of the fluorescence and absorption bands obtained under the Manhattan project. The table determined by Pant and Sakhwalkar in their study of the florescence spectrum of solid, hydrated uranyl fluoride at -185 degrees centigrade is presented. The text also discusses the theory of electronic structure and spectra of the uranyl ion. The spectroscopy of uranyl compounds in solution and the uranyl fluorescence intensity and decay are then presented. The book then explains the process of measuring the intensity of slowly decaying florescence of uranyl salts. The primary photochemical reactions in uranyl compounds are found to be slow, giving rise to many secondary thermal reactions that may be unwanted. Researchers in the fields of chemistry and physics working on actinide elements will find this collection of monographs invaluable.

  • Advances in Magnetic and Optical Resonance

    Volume 17
    • 1 Edición
    • Warren S. Warren
    • Inglés
    Advances in Magnetic and Optical Resonance, Volume 17 reviews different developing branches of coherent spectroscopy, focusing on the incoherent radiation pulses in optics and magnetic resonance. This book is divided into two chapters. Chapter 1 summarizes the uses and occasional advantages of incoherent radiation pulses in optics and magnetic resonance. The second chapter reviews theoretical developments in zero-field NMR and ESR spectroscopies. Other topics include the nonlinear incoherent spectroscopy; stochastic nonlinear susceptibilities; nonlinear interferometer for magnetic resonance; and nonlinear interference and optics. The zero-field spin dynamics and relaxation and ZF line shapes in the presence of molecular reorientations are also covered. This publication is a good reference for students and researchers interested in coherent spectroscopy.

  • High-Performance Liquid Chromatography

    Advances and Perspectives
    • 1 Edición
    • Csaba Horváth
    • Inglés
    High-Performance Liquid Chromatography: Advances and Perspectives, Volume 1 deals with the fundamental aspects of high-performance liquid chromatography, a technique used in chemical analysis. The publication provides accounts, presented by experts in the field, of a variety of topics in high-performance liquid chromatography. Each chapter covers interesting subjects such as the evolution of liquid chromatography; the use of bonded phases in high-performance chromatography; effects of ionization and complex formation on retention and selectivity in reversed-phase chromatography; and gradient elution. Chromatographers, chemists, and researchers in the field of chemical analysis will find this book a valuable reference material.

  • Infrared and Raman Spectroscopy of Lunar and Terrestrial Minerals

    • 1 Edición
    • Clarence Karr
    • Inglés
    Infrared and Raman Spectroscopy of Lunar and Terrestrial Minerals makes available in a single reference work original descriptions and summaries of the research on infrared and Raman spectroscopy of lunar and terrestrial minerals so that this information will be readily available not only to those researchers in the continuing programs on lunar samples from the completed Apollo series and on the remote sensing of solar system objects, but, in particular, to that much larger group of researchers in government, industry, and universities involved in the many programs on terrestrial minerals and earth sciences by remote sensing. The chapters in this volume are arranged according to spectroscopic technique and/or frequency range rather than application. Thus there are chapters on visible and near-infrared, followed by those on mid-infrared, far-infrared, and Raman spectroscopy. Applications are roughly divided between lunar and terrestrial, although the broad range of interchangeability of applications is obvious in many instances. There are also chapters on remote sensing of space targets and earth sciences; on lunar mineralogy and terrestrial mineralogy and geology; and on structures of lunar minerals and structures of terrestrial minerals.

  • Analytical Elements of Mechanics

    • 1 Edición
    • Thomas R. Kane
    • Inglés
    Analytical Elements of Mechanics, Volume 1, is the first of two volumes intended for use in courses in classical mechanics. The books aim to provide students and teachers with a text consistent in content and format with the author’s ideas regarding the subject matter and teaching of mechanics, and to disseminate these ideas. The book opens with a detailed exposition of vector algebra, and no prior knowledge of this subject is required. This is followed by a chapter on the topic of mass centers, which is presented as a logical extension of concepts introduced in connection with centroids. A theory of moments and couples is constructed without reference to forces, these being mentioned only in illustrative examples. This is done because it eventually becomes necessary to apply the theory to systems of vectors which are not forces, such as momenta and impulses. Equilibrium is discussed in the final chapter, preceded by extended examination of the concept of force.

  • High Resolution Spectroscopy

    • 1 Edición
    • J. Michael Hollas
    • Inglés
    High Resolution Spectroscopy discusses the underlying concepts in the different branches of spectroscopy, especially in high resolution spectroscopy. The coverage of the book includes basic principles such as the quantization of energy, as well as the interaction of electromagnetic radiation with atoms and molecules; general experimental methods and features of instrumentation; and microwave, millimeter wave, and lamb dip spectroscopy. Also covered in the book are subjects such as the principles behind rotational spectroscopy; diatomic and polyatomic molecules in vibrational spectroscopy; and the electronic spectroscopy of atoms, as well as diatomic and polyatomic molecules. The text is recommended for engineers and physicists who would like to know more about the concepts, theories, methods, and instrumentation related to spectroscopy, particularly in the field of high resolution spectroscopy.

  • Trace Analysis of Semiconductor Materials

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • J. Paul Cali + 2 más
    • Inglés
    Trace Analysis of Semiconductor Materials is a guidebook concerned with procedures of ultra-trace analysis. This book discusses six distinct techniques of trace analysis. These techniques are the most common and can be applied to various problems compared to other methods. Each of the four chapters basically includes an introduction to the principles and general statements. The theoretical basis for the technique involved is then briefly discussed. Practical applications of the techniques and the different instrumentations are explained. Then, the applications to trace analysis as pertaining to semiconductor materials are discussed. Chapter 1 discusses radiochemical practice, the analysis of semiconductor materials, separation techniques, several qualitative radiochemical schemes, radiochemical purification procedures, and several earlier reported studies. Chapter 2 covers emission spectroscopy, including its potential for future applications. Discussions in Chapter 3 explain the benefits of each of the four mass spectrometric methods, namely, the isotope dilution method, complete thermal vaporization, vacuum spark technique, and the ion bombardment method. Chapter 4 focuses on the absorption, fluorescence, and polarographic methods used in general trace analysis, including examples of semiconductor material applications and other problems that result when certain impurities are introduced into the test sample. This monograph will be useful for researchers in ultra-trace analysis, nuclear physics, and analytical chemistry.

  • Enzymatic Methods of Analysis

    International Series of Monographs in Analytical Chemistry
    • 1 Edición
    • George G. Guilbault
    • R. Belcher + 1 más
    • Inglés
    Enzymatic Methods of Analysis attempts to cover all the aspects of modern enzymatic analysis. Enzymes possess a great potential usefulness in analytical chemistry. The specificity of enzymes can solve the primary problem of most analytical chemists—the analysis of one substance in the presence of many similar compounds that interfere in the analysis. The book begins with two introductory chapters devoted to general considerations of enzymes as reagents and methods of analysis of enzymatic reactions. The next four chapters deal with methods for the assay of specific enzymes, and substrate, activator, and inhibitor analysis using enzymes. In the last two chapters the immobilization of enzymes and the automation of enzymatic reactions are discussed. In addition, a listing of all commercially available enzymes is given in an appendix. It is hoped that the information presented will prove interesting and stimulating to all individuals engaged in research and development.

  • Inorganic Ultramicroanalysis

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • I. P. Alimarin + 1 más
    • Inglés
    Inorganic Ultramicroanalysis focuses on the techniques and experimental methods used in ultramicroanalysis of inorganic compounds. Topics covered include the general apparatus used in the ultramicromethod of chemical analysis, qualitative and quantitative analysis, and methods of separation. This book consists of six chapters and opens with a review of the special features of the ultramicromethod of chemical analysis, paying particular attention to the use of the law of errors to calculate the limiting quantity of a substance necessary for the performance of chemical operations. The surface area of unit volume in the macro- and ultramicromethods of analysis is also compared. The next chapter deals with the general apparatus used in ultramicroanalysis, including the microscope and micromanipulators, and describes techniques of working with small volumes. The reader is then introduced to qualitative and quantitative analysis and methods of separation such as precipitation and electrolysis. The last chapter discusses future prospects for inorganic ultramicroanalysis. This monograph is written primarily for inorganic and analytical chemists.

  • Computing Methods in Crystallography

    • 1 Edición
    • J. S. Rollett
    • Inglés
    Computing Methods in Crystallography is a collection of lectures given at a two-week Summer School held in Oxford, UK in August 1962. About forty-five crystallographers focused on advances in the use of computing methods in crystallography. The discussions are organized around four themes: algebra, statistics, phase determination, and programming. This book is comprised of 20 chapters and begins with an introduction to the algebra required for the fundamental operations of transformation of coordinates, interpolation, and approximation of trigonometric and exponential functions, as well as solution of linear equations and derivation of latent roots and vectors. Methods for calculation of structure factors, least-squares adjustment, Fourier series evaluation, and a number of other operations are described. The statistical properties of reciprocal space are also considered, along with probability methods for centrosymmetric crystals. The final chapter looks at some crystallographic programs in FORTRAN. This monograph will be a valuable resource for crystallographers as well as physics students and researchers interested in the application of computing methods to crystallography.

  • Analytical Chemistry of Molybdenum and Tungsten

    Including the Analysis of the Metals and Their Alloys
    • 1 Edición
    • W. T. Elwell + 1 más
    • R. Belcher + 1 más
    • Inglés
    International Series of Monographs in Analytical Chemistry, Volume 47: Analytical Chemistry of Molybdenum and Tungsten describes the chemical and instrumental methods of analysis of molybdenum and tungsten. This book is composed of 15 chapters that particularly consider detailed methods for determining these metals in typical samples and their alloys by both classical and modern techniques. The opening chapters discuss the history, occurrence, physico-chemical properties, and applications of molybdenum and tungsten. The succeeding chapters deal with the metals’ sampling, decomposition, separation, and qualitative detection. Considerable chapters are devoted to various chemical and instrumental methods for their analysis, including gravimetry, titrimetry, colorimetry, polarography, amperometry, coulometry, emission and atomic absorption spectroscopy, X-ray spectrophotometry, mass spectrometry, and radiochemical methods. The concluding chapter examines the determination of impurities and alloying elements. This book will prove useful to analytical and inorganic chemists, as well as analytical and inorganic chemistry students.

  • Nuclear Techniques in Analytical Chemistry

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • Alfred J. Moses
    • R. Belcher + 1 más
    • Inglés
    Nuclear Techniques in Analytical Chemistry discusses highly sensitive nuclear techniques that determine the micro- and macro-amounts or trace elements of materials. With the increasingly frequent demand for the chemical determination of trace amounts of elements in materials, the analytical chemist had to search for more sensitive methods of analysis. This book accustoms analytical chemists with nuclear techniques that possess the desired sensitivity and applicability at trace levels. The topics covered include safe handling of radioactivity; measurement of natural radioactivity; and neutron activation analysis. The positive ion and gamma ray activation analysis; isotope dilution and tracer investigations of analytical techniques; and geo- and cosmochronology and miscellaneous nuclear techniques are also elaborated in this text. This publication is intended for analytical chemists, but is also valuable to students intending to acquire knowledge on nuclear techniques and analytical methods in chemistry.

  • Standard Methods for the Analysis of Oils, Fats and Derivatives

    • 6 Edición
    • C. Paquot
    • Inglés
    Standard Methods for the analysis of Oils, Fats and Derivatives Sixth Edition, Part 1 (Sections I and II) describes the methods of analysis, which have been adopted and edited by the Commission on Oils, Fats and Derivatives. This book is composed of two sections. The first section deals with the presentation of standard methods and procedure for oleaginous seeds and fruits analysis of oil, fats, and their derivatives. The next section describes the determination procedure of physico-chemical properties of determined oil, fats, and derivatives. Such characteristics include density, refractive index, color, dilatation, acid, ester, iodine value, and moisture and volatile matter content This book will prove useful to analytical chemists and researchers in the allied fields.

  • Physical Methods in Chemical Analysis

    Volume III
    • 1 Edición
    • Walter G. Berl
    • Inglés
    Physical Methods in Chemical Analysis, Volume III focuses on the application of physical methods in chemical analysis, including chromatography, spectroscopy, nuclear magnetic resonance, and photometry. The selection first offers information on gas chromatography, electrochromatograph... and electroanalytical methods in trace analysis. Discussions focus on analytical applications, apparatus and techniques, titration methods, anodic stripping of deposited metals, and polarography. The book then examines the high-frequency method of chemical analysis, field emission microscopy, and theory and principles of sampling for chemical analysis. The publication takes a look at flame photometry and microwave spectroscopy. Topics include sample treatment required for flame photometric determinations; factors affecting precision and accuracy in flame photometry; theoretical background of microwave spectroscopy, and problems connected with quantitative analysis. The manuscript then elaborates on analytical applications of nuclear magnetic resonance; fluorescent x-ray spectrometric analysis; and neutron spectroscopy and neutron interactions in chemical analysis. The selection is a dependable reference for readers interested in the application of physical methods in chemical analysis.

  • Electron Paramagnetic Resonance of d Transition Metal Compounds

    • 1 Edición
    • Volumen 16
    • F.E. Mabbs + 1 más
    • Inglés
    Electron paramagnetic resonance (epr) spectroscopy is a sensitive and versatile method of studying paramagnets, which is finding increasing use in chemistry, biochemistry, earth and materials sciences. The technique is treated both qualitatively and quantitatively, with a progressive increase in sophistication in each succeeding chapter. Following a general introductory chapter, the first half of the book deals with single unpaired electron systems and considers both metal and ligand Zeeman, hyperfine and quadrupole interactions. The simulation of these spectra is discussed, followed by the relationship between spin-Hamiltonian parameters and models of the electronic structures of paramagnets. The second half of the book treats multiple unpaired electron systems using the same philosophy. An introduction to the epr properties of cluster compounds and of extended exchanging systems is also given. There is a chapter on linewidths and lineshapes, and an extensive appendix containing much additional information. A wide-ranging library of simulated and experimental spectra is given, as well as graphical data which should aid spectrum interpretation. Each chapter contains key references and there is a substantial subject and keyword index. This book is designed to teach epr spectroscopy to students without any previous knowledge of the technique. However, it will also be extremely useful to researchers dealing with paramagnetic d transition metals.

  • Analytical Chemistry of the Actinide Elements

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • Alfred J. Moses
    • R. Belcher + 1 más
    • Inglés
    Analytical Chemistry of the Actinide Elements presents a number of pertinent techniques for the analysis of actinides and provides sufficient information to guide the analyst in modifying procedures to meet special situations. The book begins with an introductory chapter on the discovery of elements 89-103, their oxidation state, and their electronic configuration. Information is provided on the safe handling of radioactive materials (all actinides are radioactive). The use of nuclear techniques in determining trace concentrations of actinides has led to the inclusion of chapters dealing with nuclear instrumentation and nuclear methods. Topics discussed include the preliminary treatment of samples; separations; emission spectroscopy and mass spectrometry; electrochemical, x-ray, and fluorimetric methods; isotopic analysis of uranium and some other actinides; and non-instrumental methods. Thus, the analytical chemist, if he is not already familiar with these techniques, is indoctrinated in a basic amount of nucleonics, to aid him in analyzing unusual materials with unusual techniques.

  • Analysis of Ancient Metals

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • Earle R. Caley
    • R. Belcher + 1 más
    • Inglés
    Analysis of Ancient Metals provides a guide to the identification and analysis of ancient metals and alloys. The title details the various analytical methods and procedures in dealing with different metals and alloys. The text first discusses the heterogeneity of ancient metals and the sampling problem, and then proceeds to covering preliminary observations and measurements, qualitative tests, and choice of quantitative method. The next series of chapters details the methods and procedures in the analysis of gold, silver, copper, iron, and steel, as well as various nonferrous metals. The last chapter discusses the concerns in reporting the findings. The book will be of great interest to materials engineers and metallurgists. Archeologists and museologists will also greatly benefit from the text.

  • Determination of Beta-Blockers in Biological Material

    Evaluation of Analytical Methods in Biological Systems
    • 1 Edición
    • Volumen 4
    • V. Marko
    • Inglés
    This is the third volume of a sub-series entitled Evaluation of Analytical Methods in Biological Systems. (The first two were Analysis of Biogenic Amines edited by G.B. Baker and R.T. Coutts, and Hazardous Metals in Human Toxicology edited by A. Vercruysse).This latest volume addresses beta-blockers - an area of research for which a Nobel Prize in Medicine was awarded in 1988. It provides an up-to-date and comprehensive coverage of the theory and practice of the determination of beta-blockers in biological material. Two main fields of research are dealt with in this book: analytical chemistry and pharmacology, and, as it deals with drugs used in clinical practice, it is also related to a third area: therapy. Thus, it offers relevant information to workers in all three fields.Some 50 beta-blockers are discussed, and nine methods of analysis. The methods are divided into three groups: optical, chromatographic, and saturation methods. In addition to the analytical methods themselves, sample handling problems are also discussed in detail, as is the information content of the analytical results obtained. Special chapters are directed towards those working in pharmacology and pharmacokinetics. Finally, as recent evidence points to the increased importance of distinguishing optical isomers of drugs, a chapter on the determination of optical isomers of beta-blockers in biological material is also included. An extensive subject index and two supplements giving retention indices and structures of beta-blockers complete the book.This is the first book to treat beta-blockers from the point of view of their determination and to discuss in detail the use of analytical methods for beta-blockers. It will thus appeal to a wide-ranging readership.

  • Organic Polarographic Analysis

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • Petr Zuman
    • R. Belcher + 1 más
    • Inglés
    Organic Polarographic Analysis deals with the applications of polarography in the analysis of organic compounds. The principles, techniques, and apparatus of organic polarography are discussed, and some selected examples of the applications of organic polarography in various fields of applied chemistry are presented. The direct methods in which the sample is simply dissolved in a suitable supporting electrolyte are also considered. This book consists of 11 chapters and opens with an overview of the basic principles of the polarographic method of analysis, as well as the different types of polarographic limiting currents and of electrode processes. The reader is then introduced to the instruments used in polarography, including the polarograph, dropping and reference electrodes, and electrolysis vessels. Experimental techniques in organic polarography are also described, along with some of its practical applications in fields such as pharmacy, medicine, and biochemistry. Subsequent chapters explore polarographic methods used in the analysis of organic substances, including direct and indirect methods of analysis; separation techniques; and the use of polarography in organic synthesis and isolation of natural products. This monograph is written primarily for organic and analytical chemists.

  • Photoelectron Spectroscopy

    Chemical and Analytical Aspects
    • 1 Edición
    • A. D. Baker + 1 más
    • R. Belcher + 1 más
    • Inglés
    Photoelectron Spectroscopy provides an introduction to the principles of photoelectron spectroscopy, including its applications in structural and analytical chemistry. It deals with both X-ray and UV-photoelectron spectroscopy. This book begins with the basic principles of electron spectroscopy and describes the UV photoelectron spectrometers and X-ray photoelectron spectrometers. It then lists several factors influencing the appearance of the photoelectron spectra. This book concludes by describing other forms of electron spectroscopy and photoelectron techniques. Students and chemists who are looking for a readable introduction to photoelectron spectroscopy will find this book useful.

  • Analysis of Petroleum for Trace Elements

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • O. I. Milner
    • R. Belcher + 1 más
    • Inglés
    Analysis of Petroleum for Trace Elements details the methods for detecting the elements that are natural in various forms in petroleum. The book covers research and control applications, along with various types of petroleum stocks and products. The selection first covers the occurrence and importance of traces of non-hydrocarbon constituents, and then proceeds to tackling the principles and practices. The subsequent chapters cover the analytical and recommended method for analysis of a specific element, such as copper, iron, lead, and sulfur. The book will be of great use to scientists, engineers, and technicians involved in the oil industry.

  • Comprehensive Inorganic Chemistry

    • 1 Edición
    • J. C. Bailar
    • Inglés
    Comprehensive Inorganic Chemistry, Volume 2 is a collection of articles from expert researchers in the field of inorganic chemistry. This volume provides comprehensive information on the different elements and substances. The book provides descriptions of germanium, tin, lead, nitrogen, and phosphorus. Arsenic, antimony, bismuth, oxygen, and sulfur are presented as well. Students and practicing chemists will find great value and utility from the book.

  • Enantioselective Chemical Synthesis

    Methods, Logic, and Practice
    • 1 Edición
    • Elias J. Corey + 1 más
    • Inglés
    Written by world-renowned and best-selling experts, Nobel Laureate E. J. Corey and Laszlo Kurti, Enantioselective Chemical Synthesis offers an authoritative and comprehensive overview of the field’s progress; the processes and tools for key formations; future development for complex, stereocontrolled (enantiomeric or diastereoisomeric) molecules; and valuable examples of multi-step syntheses. Utilizing a color-coded scheme to illustrate chemical transformations, Enantioselective Chemical Synthesis provides clear explanation and guidance through vital asymmetrical syntheses and insight into the next steps for the field. Researchers, professionals, and academics will benefit from this valuable, thorough, and unique resource. In Part I, the authors present clearly, comprehensively and concisely the most useful enantioselective processes available to synthetic chemists. Part II provides an extensive discussion of the most logical ways to apply these new enantioselective methods to the planning of syntheses of stereochemically complex molecules. This hitherto neglected area is essential for the advancement of enantioselective synthesis to a more rational and powerful level. Part III describes in detail many reaction sequences which have been used successfully for the construction of a wide variety of complex target molecules

  • Electronic Charges of Bonds in Organic Compounds

    • 1 Edición
    • G. V. Bykov
    • Inglés
    Electronic Charges of Bonds in Organic Compounds presents simple and diverse methods for calculating the electronic charges of bonds from the results of physical methods of investigation. This book is composed of 10 chapters that consider the concept of electronic charges of bonds, which opened up possibilities for the study of the chemical and physical properties of organic compounds. Chapter I deals with the history of the structural theory of organic compounds, demonstrating the development of the idea of electronic bond charges and showing the close analogy between the methods of studying them. Chapters II to VI discuss the results of a study of the relationship of the electronic charges of bonds to the physical and physicochemical characteristics of molecules and their structural elements. Chapters VII to X highlight the relationship between the electronic charges of bonds and chemical properties. This book will be of value to organic chemists.

  • Chemistry in Botanical Classification: Medicine and Natural Sciences

    Medicine and Natural Sciences
    • 1 Edición
    • Gerd Bendz
    • Inglés
    Medicine and Natural Sciences: Chemistry in Botanical Classification contains the proceedings of the Twenty-Fifth Nobel Symposium held in Sodergarn, Sweden, on August 20-25, 1973. The papers explore the chemical approach to plant classification and cover topics ranging from chemosystematics and applications of special classes of compounds to insects and plant chemotaxonomy. Biosynthetic pathways in chemical phylogeny and some aspects of organic geochemistry are also discussed. This book is comprised of 32 chapters divided into five sections. The first chapter provides an overview of the chemical approach to botanical classification, with special reference to the higher taxa of Magnoliophyta. The reader is then introduced to chemosystematics and the construction of phylogenetic schemes, as well as the use of a chemical character for the classification of living organisms. The following chapters focus on The chemistry of disjunct taxa; homology of biosynthetic routes; and applications of special classes of compounds such as flavonoids. The systematic distribution of ellagitannins in relation to the phylogeny and classification of the angiosperms is also considered. The final chapter describes phytochemical and biological procedures for screening of plant materials. This monograph will be of value to botanists, plant taxonomists, and chemists.

  • Hydrogen Systems

    Papers Presented at the International Symposium on Hydrogen Systems, 7-11 May 1985, Beijing, China
    • 1 Edición
    • T. Nejat Veziroglu
    • Inglés
    Hydrogen Systems, Volume I is a collection of papers presented at the International Symposium on Hydrogen Systems held in Beijing, China, on May 7-11, 1985. The symposium provided a forum for reviewing the state of the art in hydrogen systems as an alternative source of energy. The discussions are organized around the following themes: hydrogen from fossil fuels; electrolysis; photolytic hydrogen generation; thermo- and photochemical methods of hydrogen production; hydrogen from hydrogen sulfide; catalysts; bio-production of hydrogen; novel and hybrid methods of hydrogen production; hydrogen storage and handling; metal, titanium, lanthanum, and light hydrides; and hydrogen utilization. Comprised of 53 chapters, this volume first deals with central place theory and the dominance of hydrogen as an energy carrier, followed by a detailed account of hydrogen production from fossil fuels such as coal and petroleum coke. The reader is systematically introduced to photoelectrocatalyti... splitting of water into hydrogen by doping sandwich semiconductor photoelectrodes; and visible light-induced formation of hydrogen from hydrogen sulfide. Subsequent chapters explore the photocatalytic cleavage of water on noble metal photocatalysis, with particular reference to hydrogen generation through photoinduced reduction of water and oxygen generation through photoinduced oxidation of water; hydrogen production using an immobilized co-culture of anaerobic and photosynthetic bacteria; and storage and handling of liquid hydrogen in automotive vehicles. This monograph will be of interest to scientists, engineers, environmentalists, and energy planners.

  • The Chemistry of Vanadium, Niobium and Tantalum

    Pergamon Texts in Inorganic Chemistry
    • 1 Edición
    • R. J. H. Clark + 1 más
    • J. C. Bailar + 2 más
    • Inglés
    The Chemistry of Vanadium, Niobium and Tantalum gives a comprehensive discussion on the discovery, origin, and metallurgical aspects of vanadium, niobium, and tantalum. A section is also focused on the nuclear properties, as well as the physical and chemical properties of each compound. The history and distribution of vanadium, niobium, and tantalum are explored, along with the purification and extraction procedures of the said elements. The book also explores the derivative compounds such as the alloys, hydride, halides, and oxides. Another section of the book is focused on the physical and chemical modifications of the elements that generate such by-products as the cyanides, hydroxides, and sulfides. Different complexes of the elements such as halogeno- and oxyhalogeno-complexe... are discussed in detail. The organometallic chemistry of niobium, tantalum, and vanadium are also identified. The book will be a useful tool for chemical engineers, chemical scientists, and students in the field of chemistry.

  • Advances in Heterocyclic Chemistry

    • 1 Edición
    • Volumen 110
    • 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.

  • Open-Source Lab

    How to Build Your Own Hardware and Reduce Research Costs
    • 1 Edición
    • Joshua M. Pearce
    • Inglés
    Open-Source Lab: How to Build Your Own Hardware and Reduce Scientific Research Costs details the development of the free and open-source hardware revolution. The combination of open-source 3D printing and microcontrollers running on free software enables scientists, engineers, and lab personnel in every discipline to develop powerful research tools at unprecedented low costs.After reading Open-Source Lab, you will be able to: Lower equipment costs by making your own hardware Build open-source hardware for scientific research Actively participate in a community in which scientific results are more easily replicated and cited

  • The Chemistry of Iron, Cobalt and Nickel

    Comprehensive Inorganic Chemistry
    • 1 Edición
    • D. Nicholls
    • Inglés
    The Chemistry of Iron, Cobalt and Nickel deals with the chemistry of iron, cobalt, and nickel and covers topics ranging from the occurrence and distribution of all three elements to their properties, allotropy, and analytical chemistry. Compounds of iron, cobalt, and nickel in both low and high oxidation states are also discussed. This book is divided into three sections and begins with the history of iron, along with its occurrence and distribution, allotropy, and preparation and industrial production. The nuclear, physical, and chemical properties of iron, as well as the biological importance of iron compounds, are also considered. Compounds of iron are discussed, including carbonyls and nitric oxide complexes. The next two sections deal with the history, occurrence and distribution, allotropy, analytical chemistry, and preparation and industrial production of cobalt and nickel, along with their nuclear, physical, and chemical properties. Compounds of cobalt and nickel are examined, from carbonyls and nitrosyls to cyanides and organometallic compounds. This monograph will be a useful resource for inorganic chemists.

  • Diffraction and Related Studies, Proceedings of the International Symposium on Biomolecular Structure, Conformation, Function and Evolution, Madras, January 1978, Biomolecular Structure, Conformation, Function, and Evolution

    Proceedings of the International Symposium on Biomolecular Structure, Conformation, Function and Evolution, Madras, January 1978
    • 1 Edición
    • R. Srinivasan
    • Inglés
    Diffraction and Related Studies, Proceedings of the International Symposium on Biomolecular Structure, Conformation, Function and Evolution, Madras, January 1978, Biomolecular Structure, Conformation, Function, and Evolution

  • Advances in Organic Geochemistry 1968

    Proceedings of the 4th International Meeting on Organic Geochemistry, Held in Amsterdam, September 16-18, 1968
    • 1 Edición
    • P. A. Schenck + 1 más
    • Inglés
    Advances in Organic Geochemistry 1968, Volume 31 contains the proceedings of the 4th International Meeting on Organic Geochemistry, held in Amsterdam, Netherlands, on September 16-18, 1968. The papers explore advances in several fields of organic geochemistry, including organic compounds found in sediments, geochemistry of coal and petroleum, and organic geochemistry of the oceans. This book is comprised of 39 chapters and begins with a discussion on the distribution of hydrocarbons and fatty acids in living organisms and in sediments, paying particular attention to biological markers and the carbon skeleton concept. The reader is methodically introduced to the mechanisms of formation of petroleum from sediment organic matter; dissolved organic matter in the oceans; the fatty acid content of tasmanites; and identification of steranes and triterpanes from a geological source using capillary gas liquid chromatography and mass spectrometry. The chemistry of coal and crude oil metamorphism is also considered, along with the racemization of amino acids on silicates. The final chapter focuses on carbon polytypism in meteorites. This volume will be useful to organic chemists, geochemists, and all those interested in the field of organic geochemistry.

  • Essays on Analytical Chemistry

    In Memory of Professor Anders Ringbom
    • 1 Edición
    • Erkki Wänninen
    • Inglés
    Essays on Analytical Chemistry: In Memory of Professor Anders Ringbom is a collection of analytical chemistry papers and research studies in honor of the memory of Professor Anders Ringbom, a highly esteemed researcher and teacher. The papers are grouped under the following headings: Chemical Equilibria, Titrations, Photometric Analysis, Electrochemistry, Separations, Trace Analysis, Kinetic Analysis, and Other Analytical Topics. This book is organized into eight parts encompassing 52 chapters. The first part deals with the concept of chemical equilibria in acid-base and metal complexes. The next parts cover the applications of different titration techniques, photometric analysis, electrochemistry, and separation techniques. Other parts highlight the principles and application of trace analysis, including the determination of heavy metals and airborne particulates. The last parts contain papers that examine the analytical application of the rate phenomena of several chemical reactions. These parts also tackle the topics of sampling, statistical analysis in analytical chemistry, and the features of photoelectron spectroscopy and capillary electrophoresis. This book will be of great value to analytical chemists, researchers, and analytical chemistry students.

  • Annual Reports in Computational Chemistry

    • 1 Edición
    • Volumen 9
    • Ralph A. Wheeler
    • Inglés
    Annual Reports in Computational Chemistry provides timely and critical reviews of important topics in computational chemistry as applied to all chemical disciplines. Topics covered include quantum chemistry, molecular mechanics, force fields, chemical education, and applications in academic and industrial settings. Focusing on the most recent literature and advances in the field, each article covers a specific topic of importance to computational chemists.

  • Annual Reports on NMR Spectroscopy

    • 1 Edición
    • Volumen 80
    • 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.

  • Advanced Techniques in Gas Chromatography-Mass Spectrometry (GC-MS-MS and GC-TOF-MS) for Environmental Chemistry

    • 1 Edición
    • Volumen 61
    • Inglés
    Gas chromatography mass spectrometry (GC-MS) has been the technique of choice of analytical scientists for many years. The latest developments in instrumentation, including tandem mass spectrometry (MS-MS) and time-of-flight (TOF) detectors, have opened up and broadened the scope of environmental analytical chemistry. This book summarizes the major advances and relevant applications of GC-MS techniques over the last 10 years, with chapters by leading authors in the field of environmental chemistry. The authors are drawn from academia, industry and government. The book is organized in three main parts. Part I covers applications of basic GC-MS to solve environmental-relate... problems. Part II focuses on GC-MS-MS instrumentation for the analyses of a broad range of analysis in environmental samples (pesticides, persistent organic pollutants, endocrine disruptors, etc.). Part III covers the use of more advanced GC-MS techniques using low- and high-resolution mass spectrometry for many applications related to the environment, food and industry.

  • Hydrogen Bonding

    Papers Presented at the Symposium on Hydrogen Bonding Held at Ljubljana, 29 July–3 August 1957
    • 1 Edición
    • D. Hadži
    • Inglés
    Hydrogen Bonding covers the papers presented at the Symposium on Hydrogen Bonding, held at Ljubljana on July 29 to August 3, 1957. The book focuses on the developments, processes, approaches, methodologies, and reactions involved in hydrogen bonding. The selection first offers information on the structure of water; function of hydrogen bond in solids and liquids; and study of hydrogen bonds by neutron diffraction. The text then takes a look at x-ray and neutron studies of hydrogen bonding; x-ray studies of ammonium bifluoride, potassium hydrogen maleate, theophylline, and caffeine; and isotope effect in relation to bond length in hydrogen bonds in crystals. The publication ponders on proton magnetic resonance measurements of hydrogen bonding; interpretation of nuclear magnetic resonance shifts in hydrogen bonding; nuclear resonance investigation of hydrogen bonding; and infrared spectroscopy and hydrogen bonding — band-widths and frequency shifts. The book then examines the tunneling of protons as a cause of the splitting of hydroxyl stretching bands; infrared spectroscopic study of H-bonding and of metal-element bonding; and effect of hydrogen bond formation on the electronic spectra of phenolic substances. The selection is a vital source of information for readers interested in hydrogen bonding.

  • Equilibrium Constants of Liquid-Liquid Distribution Reactions

    Organophosphorus Extractants
    • 1 Edición
    • Y. Marcus + 2 más
    • Inglés
    Equilibrium Constants of Liquid-liquid Distribution Reactions Introduction, and Part 1: Organophosphorus Extractants focuses on the numerical representations, formulas, reactions, and characteristics of equilibrium constants of organophosphorus extractants. The text underscores that only a number of papers focusing on equilibrium constants for distribution reactions involving metal complexes are published before 1947. The book also states that no equilibrium constants have been reported on several organophosphorus extractants although they are used in practical extraction work. The publication provides a list of extractants, ligands, and metal ions. These include distribution and dissociation of extractants; dimerization and aggregation of extractants; homogeneous equilibria of extractants with metal ions; extraction of metal ions with extractants as ligands; and reactions of extractants with diluents and other solvents. The manuscript also highlights reactions, temperature, and equilibrium constants. The book is a valuable source of data for readers interested in the equilibrium constants of organophosphorus extractants.

  • Spectroscopic Data Relative to Diatomic Molecules

    • 1 Edición
    • B. Rosen
    • Inglés
    Spectroscopic Data Relative to Diatomic Molecules provides information pertinent to the electronic spectrum and spectroscopic properties of diatomic molecules. This book consists of a collection of tables that mainly deal with electronic spectra located in the infrared, the visible and the ultraviolet. Thermochemical data have been used in this book to make estimates of dissociation energies while results from electron diffraction experiments have been used to determine internuclear distances. This text provides information regarding potential energy curves, ionization potential, correlations with atomic states, electronic configuration, lifetimes, transition probabilities, astrophysical applications, and chemical physics. This book is a valuable resource for spectroscopists.

  • Radiopharmaceuticals and Other Compounds Labelled with Short-Lived Radionuclides

    • 1 Edición
    • Michael J. Welch
    • Inglés
    Radiopharmaceuticals and Other Compounds Labelled with Short-Lived Radionuclides covers through both review and contributed articles the potential applications and developments in labeling with short-lived radionuclides whose use is restricted to institutions with accelerators. The book discusses the current and potential use of generator-produced radionuclides as well as other short-lived radionuclides, and the problems of quality control of such labeled compounds. The book is useful to nuclear medicine physicians.

  • Basics for Chemistry

    • 1 Edición
    • David A. Ucko
    • Inglés
    Basics of Chemistry provides the tools needed in the study of General Chemistry such as problem solving skills, calculation methods and the language and basic concepts of chemistry. The book is designed to meet the specific needs of underprepared students. Concepts are presented only as they are needed, and developed from the simple to the complex. The text is divided into 18 chapters, each covering some particular aspect of chemistry such as matter, energy, and measurement; the properties of atoms; description of chemical bonding; study of chemical change; and nuclear and organic chemistry. Undergraduate students will find the book as a very valuable academic material.

  • Membership Lists of IUPAC Bodies 1977-1979

    • 1 Edición
    • Sam Stuart
    • Inglés
    Membership Lists of IUPAC Bodies 1977-1979 contains names of IUPAC members, their category of Membership, and their division or committees. This book is divided into 29 chapters. Each chapter contains names of the members of the specific division, their position, and some general personal information.

  • The Chemistry of Lignin

    Covering the Literature for the Years 1949–1958
    • 1 Edición
    • Friedrich Emil Brauns + 1 más
    • Inglés
    The Chemistry of Lignin provides a critical review of the literature published from 1949 to 1958. This book provides information pertinent to the fundamental aspects of lignin chemistry. Organized into 27 chapters, this book begins with an overview of the derivatives that are prepared for the characterization of the mother substance. This text then examines the various kinds of lignin and biosynthetic lignin-like products, which have been characterized by their behavior toward oxidation with nitrobenzene and alkali. Other chapters consider the morphological distribution of lignin in the wood fiber and the place of origin of lignin precursors and of the lignification process. This book discusses as well the formation or biosynthesis of lignin in plants and reviews the structure, isolation, and biosynthesis of lignin. The final chapter deals with producing lignin by the action of enzymes. This book is a valuable resource for lignin chemists, scientists, research workers, and botanists.

  • Expression of Results in Quantum Chemistry

    Physical Chemistry Division: Commission on Physicochemical Symbols, Terminology and Units
    • 1 Edición
    • D. H. Whiffen
    • Inglés
    Expression of Results in Quantum Chemistry recommends the appropriate insertion of physical constants in the output information of a theoretical paper in order to make the numerical end results of theoretical work easily transformed to SI units by the reader. The acceptance of this recommendation would circumvent the need for a set of atomic units each with its own symbol and name. It is the traditional use of the phrase ""atomic units"" in this area which has obscured the real problem. The four SI dimensions of length, mass, time, and current require four physical constants to be permitted. A table is included with the physical constants or mixtures of physical constants, to be normally used as a factor, to convert into SI the results of theoretical computations of a selected list of physical quantities. The first column lists these physical quantities, the second column shows their usual symbols, and the third column gives the mixture of physical constants X corresponding to each physical quantity. The descriptions of X are not unique but the value in SI is naturally unaffected by the form in which Xh is expressed. For convenience the final column of the table gives values of X to five significant figures. For higher accuracy the most recent table of physical constants should be used to re-evaluate the numbers. This monograph will be a useful resource for students, chemists, and physicists.

  • Thermal Energy Storage

    The Report of a NATO Science Committee Conference Held at Turnberry, Scotland, 1st-5th March, 1976
    • 1 Edición
    • Eugene G. Kovach
    • Inglés
    Thermal Energy Storage is a collection of papers that tackles various areas of concerns in thermal energy storage. The materials in the text are primarily concerned with addressing issues regarding conservation, efficiency, and applicability of thermal energy storage. The coverage of the title includes the storage of high and low temperature thermal energy; heat transfer and thermal energy transport; and the impact of thermal energy storage on energy structures. The book will be of great interest to scientists, engineers, and technicians involved in the energy industry.

  • Regulation of Gluconeogenesis

    9th Conference of the Gesellschaft für Biologische Chemie
    • 1 Edición
    • Hans-Dieter Söling + 1 más
    • Inglés
    Regulation of Gluconeogenesis documents the proceedings of 9th Conference of the Gesellschaft für Biologische Chemie. This meeting was first planned as a continuation of a former Conference of the Gesellschaft für Biologische Chemie on ""Stoffwechsel der isoliert perfundierten Leber"". However, the organizers of the present meeting decided that it seemed far more reasonable to restrict the subject to a special biochemical problem than to a technical procedure which had not changed very much during the last years. This volume contains 24 chapters and begins with a paper that identifies the substrates, activators, and inhibitors which may influence the rate of reaction of pyruvate carboxylase from liver. Other papers deal with topics such as purification and properties of pyruvate carboxylase from rat liver; the location of pyruvate carboxylase in mitochondria; effects of quinolinic acid on the free and total nicotinamide-adenine dinucleotides of rat liver; and effects of biguanides on gluconeogenesis in rats and guinea pigs.

  • Thermodynamic Diagrams for High Temperature Plasmas of Air, Air-Carbon, Carbon-Hydrogen Mixtures, and Argon

    • 1 Edición
    • H. Kroepelin + 2 más
    • Inglés
    Thermodynamic Diagrams for High Temperature Plasmas of Air, Air-Carbon, Carbon-Hydrogen Mixtures, and Argon provides information relating to the properties of equilibrium gas plasmas formed from hydrocarbons, from air without argon, from pure argon, and from mixtures of air and carbon at various compositions, temperatures and pressures. The data are presented in graphical rather than tabular form to provide a clearer picture of the plasma processes investigated. This book is composed of four chapters, and begins with the introduction to the characteristics of plasmas, with emphasis on their thermodynamic properties. The succeeding chapter deals with the theoretical basis of the computations of thermodynamic properties using a system of equations derived from quantized Boltzmann statistics. These topics are followed by discussions on the calculation of equilibrium compositions and the thermodynamic values for thermal plasmas. The final chapter describes proposed models on which the calculations are based. This book will prove useful to chemical technologists and researchers.

  • TRAC: Trends in Analytical Chemistry

    Volume 8
    • 1 Edición
    • U A Th Brinkman + 2 más
    • Inglés
    TRAC: Trends in Analytical Chemistry, Volume 8 provides information pertinent to the trends in the field of analytical chemistry. This book presents a variety of topics related to analytical chemistry, including protein purification, biotechnology, Raman spectroscopy in pharmaceutical field, electrokinetic chromatography, and flow injection analysis. Organized into 50 chapters, this volume begins with an overview of scientometric investigations that enable the quantitative study of the evolution of its various components and can thereby uncover how information is utilized to diffuse and generate knowledge. This text then discusses the economic significance of sensing and control as being the main factors in determining process economics and in offering products and business opportunities. Other chapters consider the important relationship between Raman spectroscopy and other analytical methods. This book discusses as well the interfaces between a gas chromatograph and a Fourier transform infrared spectrometer. The final chapter deals with chemometrics routines. This book is a valuable resource for analytical chemists, and biochemists.

  • Ternary and Multicomponent Systems

    Solubilities of Inorganic and Organic Compounds
    • 1 Edición
    • H. Stephen + 1 más
    • Inglés
    Solubilities of Inorganic and Organic Compounds, Volume 2: Ternary and Multicomponent Systems, Part 2 presents the solubility data of ternary and multicomponent systems. The text arranges the data in a way that the first Tables are systems in which an Element is a component, which are followed by data for systems containing inorganic compounds, metallo-organic compounds. Next, the selection presents the systems in which water is one component and the remaining components being organic. The book will be of great use to students of chemistry and chemical engineering.

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