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Elsevier

Libros en Química

  • Chemical Evolution of the Early Precambrian

    • 1 Edición
    • Cyril Ponnamperuma
    • Inglés
    Chemical Evolution of the Early Precambrian is a collection of papers presented at the Second College Park Colloquium on Chemical Evolution, held at the University of Maryland in October 1975. The book presents the discussions on the processes that led to the beginning of life on earth based on information gathered from the study of the Early Precambrian period. Topics on the origin of the atmosphere; early Precambrian weathering and sedimentation; carbon contents of early Precambrian rocks; and the establishment of the earliest date in the Precambrian period at which unambiguous living forms existed are expounded in the text. Geologists, biologists, chemists, paleobiologists, and students will find the book insightful and interesting.

  • Isotope Dilution Analysis

    International Series of Monographs in Analytical Chemistry
    • 1 Edición
    • J. Tölgyessy + 2 más
    • R. Belcher + 1 más
    • Inglés
    International Series of Monographs in Analytical Chemistry, Volume 49: Isotope Dilution Analysis focuses on the method of isotope dilution analysis (IDA). The book first discusses the principles, types, and theory of IDA. Classification of the methods of IDA; precision, accuracy, and sensitivity of IDA; and types of IDA are described. The text also examines experimental techniques, separation, and mass determination. The separation of components, reagents and tracers, and amount of substance separated are underscored. The text takes a look at the inorganic applications of IDA, including determination of elements and selected procedures. The text examines the applications of IDA in organic chemistry and biochemistry, particularly in the analysis of alcohols and ethers, steroids, penicillin, proteins and amino acids, and insecticides. The book discusses IDA with stable isotopes. Methods for the determination of isotopic composition, fundamentals and technique, and practical applications are underscored. The text also emphasizes the special applications of isotope dilution. Determination of the content of isotopic carriers in radioactive preparations; determination of the coefficient of self-absorption and specific activity; and determination of radioactive contaminants are discussed. The text is a vital reference for readers interested in isotope dilution analysis.

  • Index to Reviews, Symposia Volumes and Monographs in Organic Chemistry

    For the Period 1961-1962
    • 1 Edición
    • Norman Kharasch + 1 más
    • Inglés
    Index to Reviews, Symposia Volumes and Monographs in Organic Chemistry For the Period 1961-1962 aims to help research workers, teachers, and students to locate quickly those current reviews in which they may be interested. The format used in the 1940-1960 Index has been retained. While the 1961-1962 issue stands on its own, it will be most useful in conjunction with the 1940-1960 volume. Complete author and subject indexes are included, with adequate cross-indexing in the latter. While the majority of articles listed is directly on organic chemistry, there are many which border on biochemistry, pharmaceutical chemistry, bacteriology, technological developments, etc. The volume is organized into three parts. Part I contains reviews in journals and periodic publications. Part II presents reviews in symposia, collective volumes, and non-periodical publications. Part III lists monographs on organic chemistry, 1961-1962. Included this volume are a number of articles which deal specifically with hazards in the use of various chemicals, such as perchlorates, peroxides, solvents, insecticides, etc. A selection of articles from the Journal of Chemical Education is provided as well as articles in the International Edition of Angewandte Chemie, published in English.

  • Advances in Organic Geochemistry

    Proceedings of the International Meeting in Milan, 1962
    • 1 Edición
    • Umberto Colombo + 1 más
    • Inglés
    Advances in Organic Geochemistry documents the proceedings of the First International Meeting of the European Branch of the Organic Geochemistry Group held in Milan on September 10-12, 1962. This compilation discusses research and review problems relating to the geochemistry of organic materials in the earth's crust, such as petroleum and coal, as well as less highly concentrated, but more widespread, organic matter present in various rocks, soils, and waters. Other topics covered include duplex origins of petroleum; chemical study of coal macerals; mineralized micro-structures in carbonaceous meteorites; primary investigation of the oleiferous dolerite of Dyvika; and organic residues in Jurassic oolitic limestones. Geochemical aspects of the microbial modification of carbon compounds; trace metal analysis of oils and asphalts by neutron activation techniques; and application of ultraviolet spectroscopy to the examination of dissolved organic substances in water are also deliberated in this text. This publication is beneficial to students and individuals conducting work on organic geochemistry.

  • Annual Reports in Organic Synthesis—1977

    • 1 Edición
    • R. Bryan Miller + 1 más
    • Inglés
    Annual Reports in Organic Synthesis—1977 presents an annual review of synthetically useful information that would prove beneficial to nearly all organic chemists, both specialist and nonspecialist in synthesis. It should help relieve some of the information storage burden of the specialist and should aid the nonspecialist who is seeking help with a specific problem to become rapidly aware of recent synthetic advances. In producing this volume the editors abstracted 47 primary chemistry journals, selecting useful synthetic advances. All reactions and methods which are new, synthetically useful, and reasonably general are included. Each entry is comprised primarily of structures accompanied by very few comments. The purpose of this is to aid the reader in rapidly scanning the book. Chapters I-III are organized by reaction type and constitute the major part of the book. Chapter IV deals with methods of synthesizing heterocyclic systems. Chapter V covers the use of new protecting groups. Chapter VI is divided into three main parts and covers those synthetically useful transformations that do not fit easily into the first three chapters. The first part deals only with functional group synthesis. The second part covers ring expansion and contraction, and the third part involves useful multistep sequences.

  • Spin Labeling

    Theory and Applications
    • 1 Edición
    • Lawrence J. Berliner
    • Inglés
    Spin Labeling II: Theory and Applications covers spin-labeled biopolymers and its importance to both macromolecular modeling as well as some industrially based problems. The book discusses the methods of saturation-transfer spectroscopy; the spin-probe-spin-labe... method; and new aspects of nitroxide chemistry. The text also describes the spin-labeled synthetic polymers; the impact that the technique of spin labeling has on pharmacology and on biomedicine; as well as the applications of spin labeling to nucleic acids. Chemists, pharmacologists, biochemists, and people working in the field of biological magnetic resonance will find the book invaluable.

  • The Analysis of Gases by Chromatography

    • 1 Edición
    • C. J. Cowper + 1 más
    • R Belcher
    • Inglés
    Intended to enable trained scientists to equip themselves to successfully perform analyses of complex gas mixtures. The equipment and the considerations governing the choice of carrier gas are described in detail. Selection of methods for use on complex mixtures often involves the choice of more than one column; the separating capabilities of column packing and how they can be used in combinations are described and numerous examples are given. The handling of samples prior to separation and the calculation of results after separation, including calibration, are described. Throughout, special emphasis is given to the differences between gas analysis and the better documented liquid analysis.

  • Standard Methods of Clinical Chemistry

    By the American Association of Clinical Chemists
    • 1 Edición
    • David Seligson
    • Inglés
    Standard Methods of Clinical Chemistry, Volume II describes accurate and workable methods used in clinical laboratories. This 21-chapter text covers the principles, reagents, procedure, and calculation of these methods. The opening chapters explore various clinical chemistry methods for determination of serum calcium, cholesterol, chloride, fatty acids, gamma globulin, and hemoglobin. The succeeding chapters review the methods for detection of free and conjugated 17-hydroxycorticoste... 17-ketosteroids, serum iron, lipase, nitrogen by Kjeldahl method, and nonprotein nitrogen. The remaining chapters deal with other clinical methods for blood pH, enzyme, phosphatides, urine porphyrins, protein-bound ion, and sulfobromophthalein determination. This book is directed primarily toward clinical chemists, but pathologists, medical technicians, clinical investigators, chemists in other fields, and students will find this book rewarding.

  • High-Performance Liquid Chromatography

    Advances and Perspectives
    • 1 Edición
    • Csaba Horváth
    • Inglés
    High-Performance Liquid Chromatography: Advances and Perspectives, Volume 4 is an authoritative publication that deals with the fundamentals, instrumentation, and applications of high-performance liquid chromatography. The volume contains articles on practical aspects of reversed-phase chromatography in the study of biopolymer separations; characterization of stationary phases and the development of various packing materials; electrochemical detection; and the fundamentals of chromatographic behavior of large molecules. Chromatographers, chemists, and researchers in the field of chemical analysis will find this book an interesting read.

  • Nuclear Chemistry

    • 1 Edición
    • L. Yaffe
    • Inglés

  • Proceedings of the Fifth Conference on Carbon

    • 1 Edición
    • Sam Stuart
    • Inglés

  • Origin and Chemistry of Petroleum

    Proceedings of the Third Annual Karcher Symposium, Oklahoma, May 4, 1979
    • 1 Edición
    • Gordon Atkinson + 1 más
    • Inglés
    Origin and Chemistry of Petroleum explains that petroleum is produced from exceptionally disseminated organic matter of biological origin encased in extremely buried sediments. Production of petroleum starts when such sediments are exposed to higher temperatures resulting from increased depths of entombment in the sedimentary column. The book discusses that once the petroleum is created from source rocks, the material transfers into porous reservoir rocks. Such rocks, when discovered, will give enough supply of petroleum for commercial production. An evaluation of the molecular analysis of the thermal history of sediments is also discussed in the book. Concepts such as the biological marker compounds, stereochemical conversion, and lower Toarcian sediments are covered in detail. Analysis of organic matters, such as acyclic isoprenoids, steranes, hopanes, and porphyrins, is highlighted. The molecular distributions and stereochemical ratios are also covered in the book. The text can serve as a valuable tool for geologists, chemists, miners, students, and researchers in the field of chemistry.

  • Preparative Acetylenic Chemistry

    • 2 Edición
    • Volumen 34
    • L. Brandsma
    • Inglés
    The first edition of Preparative Acetylenic Chemistry was published in 1971 as one of a series of laboratory manuals containing experimental procedures. The book was used extensively by students during practical courses and laboratory research work and enabled procedures to be carried out by persons with relatively limited bench experience. Discussions about their results have in many cases led to modified procedures or descriptions which have now been incorporated in this considerably revised and up-dated edition.The new book contains a collection of some 250 experimental procedures on a scale of at least 0.1 molar for the preparation of a wide variety of compounds with a triple bond. A number of procedures in the old edition have been omitted and replaced by others; the subdivision and titling of the chapters and experiments have been changed; and the indexes have been replaced by a type-compound-method index. Some new and attractive methods have been included, e.g. eliminations under phase-transfer conditions and couplings under the influence of zero-valent palladium compounds. In a number of cases, additional experiments have been described in order to give a more complete picture of the scope of the concerned methods.This collection is based on almost 30 years active bench experience by the author and all the procedures have been checked at least once in the author's laboratory. It will undoubtedly provide as much useful and practical assistance as did its predecessor.

  • Index to Reviews, Symposia Volumes and Monographs in Organic Chemistry

    For the Period 1940-1960
    • 1 Edición
    • Norman Kharasch + 2 más
    • Inglés
    Index to Reviews, Symposia Volumes and Monographs in Organic Chemistry for the Period 1940-1960 presents a resume of published monographs, reviews, and symposia lectures in organic chemistry. The editors adopted the plan of listings by symposia volume or journal, backed up by the total subject and author indexes. In this way the user can readily locate a particular article through the author index or the subject index; or should he recall that an article appeared in a particular source, the chronological listing in that source can be scanned quickly. The Index gives a convenient overview of the accomplishments of organic chemists during this very prolific period of the growth of the field. Frequently, several articles on the same or similar subject appear, hence the historical perspective can be sensed by rapid evaluation of the reviews selected. This Index will be useful to research workers, teachers and students. It will also assist editors and authors to select specific areas which require critical review.

  • Chemical Fertilizers

    Proceedings of the XVII International Congress Chemistry Days 1966 On
    • 1 Edición
    • Giacomo Fauser
    • Inglés
    Chemical Fertilizers is a collection of papers that covers the advancement in the research of chemical fertilizer technology. The coverage of text includes papers that tackle the concerns in utilizing chemical fertilizers, such as food and fertilizer in developing countries, and the physical-chemical studies on decomposition reactions and the safe handling of ammonium nitrate-bearing fertilizers. The selection also covers the issues about the production of chemical fertilizers, including technological progress in the production of urea and graphic method for calculating formulations in complex fertilizers production. The book will be of great use to chemists, botanists, agriculturists, and horticulturists.

  • Ab Initio Valence Calculations in Chemistry

    • 1 Edición
    • D. B. Cook
    • Inglés
    Ab Initio Valence Calculations in Chemistry describes the theory and practice of ab initio valence calculations in chemistry and applies the ideas to a specific example, linear BeH2. Topics covered include the Schrödinger equation and the orbital approximation to atomic orbitals; molecular orbital and valence bond methods; practical molecular wave functions; and molecular integrals. Open shell systems, molecular symmetry, and localized descriptions of electronic structure are also discussed. This book is comprised of 13 chapters and begins by introducing the reader to the use of the Schrödinger equation to solve the electronic structure of molecular systems. This discussion is followed by two chapters that describe the chemical and mathematical nature of orbital theories in quantum chemistry. Two general ways of using chemical and physical information in looking for approximate solutions of the Schrödinger equation are highlighted: model approximations and numerical approximations. Attention then turns to atomic orbitals as the basis of a description of molecular electronic structure; practical molecular wave functions; and a general strategy for performing molecular valence calculations. The final chapter examines the nature of the valence electronic structure by using invariance with respect to transformations among the occupied molecular orbitals and among the atomic orbitals. This text will be of interest to students and practitioners of chemistry, biochemistry, and quantum mechanics.

  • Zinc Ions in Ear, Nose, and Throat Work

    • 1 Edición
    • A. R. Friel
    • Inglés
    Zinc Ions in Ear, Nose, and Throat Work presents the method of effectively treating otorrhea. This three-chapter text discusses the means of applying electric current to the infected area to introduce zinc ions into the tissue. It addresses the progress made with the treatment and the use of this in treating maxillary and frontal sinusitis. Some of the topics covered in the book are the dissociation of atoms into ions; description of a simple voltaic cell; features and chemical reactions in an electrolytic cell; and source and regulation of the electric current. The next chapter provides the basic procedures of using the zinc ion treatment and the clinical application of zinc ionization and zinc electrolysis in chronic otorrhea. An evaluation of tympanic sepsis treatment and the analysis of tympanic conditions with rhinitis and tonsillitis are presented. The last chapter is devoted to zinc ionization in the post-operative treatment of cerebral abscess. The book can provide useful information to doctors, students, and researchers.

  • Organic Chemistry

    Made Simple
    • 1 Edición
    • S. K. Murthy + 1 más
    • Inglés
    Organic Chemistry: Made Simple provides an introduction to the fundamental concepts of organic chemistry. A systematic approach to the subject is adopted with compounds classified according to the functional groups present. A non-mathematical approach is applied to the modern theories of chemical structure and bonding. Each chapter also contains a summary and most conclude with a set of problems. The book is organized into four parts. Part I provides introductory material, including the scope of organic chemistry and the architecture of atoms and molecules. Part II discusses aliphatic compounds such as hydrocarbons, halogen derivatives of the paraffins, and alcohols and ethers. Part III covers aromatic compounds including benzene and its derivatives; aromatic amines, diazo compounds, and dyes; and phenols and aromatic alcohols. Part IV deals with heterocyclic compounds, physiologically active compounds, and polymers. This book is written for persons with some knowledge of general or inorganic chemistry who wish to obtain an understanding of organic chemistry. The book more than covers the syllabus for the G.C.E. Advanced Level Chemistry course. It could serve as an organic chemistry textbook or companion reader for students studying for a Teacher's Certificate, Higher National Certificate or Advanced Chemical Technician's Certificate.

  • Catenanes, Rotaxanes, and Knots

    • 1 Edición
    • Gottfried Schill
    • Alfred T. Blomquist
    • Inglés
    Organic Chemistry, Volume 22: Catenanes, Rotaxanes, and Knots provides information pertinent to the synthesis of catenanes and rotaxanes. This book discusses the manner of interaction between the molecular subunits in catenanes in the solid, liquid, and gaseous states. Organized into 19 chapters, this volume begins with an overview of the idea of synthesizing molecules composed of separate entities that are mechanically connected to one another. This text then examines the stereochemistry and the other physical and chemical properties related to the mechanical connections in these compounds. Other chapters consider the determination of the absolute configuration of catenanes by extension of the Cahn–Ingold–Prelog rules. This book discusses as well the bond that mechanically connects the catenated rings. The final chapter deals with the model studies of the synthesis of knots, double wound rotaxanes, and higher linear catenanes. This book is a valuable resource for chemists, students, and research workers.

  • Enzymes in Clinical Chemistry

    Proceedings of the Second International Symposium on Enzymes in Clinical Chemistry Held in Ghent, Belgium, April 1961
    • 1 Edición
    • Sam Stuart
    • Inglés
    Enzymes in Clinical Chemistry presents the proceedings of the Second International Symposium on Enzymes in Clinical Chemistry, held in Ghent, Belgium, on April 14–16, 1961. This book provides information pertinent to the application of enzymes in clinical chemistry. Organized into 16 chapters, this compilation of papers begins with an overview of the alterations to serum and plasma enzymes that represent subtle protein modifications associated with disease states. This text then provides a comparison of the Michaelis constants of particular tissue alkaline phophotases with those of serum alkaline phosphotase from several pathological states. Other chapters consider the origin of metabolic changes in leucocytes, including the genetic metabolic defects, the intrinsic disturbances arising in leucocytes themselves, and the blood metabolite or hormone concentrations. This book discusses as well the action of amine oxidases. This book is a valuable resource for clinical chemists, chemical pathologists, enzymologists, scientists, research workers, and students.

  • Selenium Reagents & Intermediates in Organic Synthesis

    • 1 Edición
    • Volumen 4
    • C. Paulmier
    • Patrick Perlmutter
    • Inglés
    The explosive growth of organoselenium chemistry over the past 12 years can be attributed to the specific properties of organic selenium molecules, which fit the requirements of modern organic synthesis. Most of them are well adapted to chemo-, regio- and stereo-selectivities... In addition, they can be used in mild experimental conditions which are compatible with the stability of both substrates and products in the preparation of unsaturated and functional complex molecules, especially in the field of natural products. This book describes and illustrates different synthetic routes to organic structures using selenium reagents or intermediates. The approach emphasizes that such transformations are simple, efficient and often carried out at room temperature. The scope ranges from the preparation of both inorganic and organic selenium reagents, through descriptions of structure, toxicity, biological aspects and nuclear magnetic resonance, to applications of specific selenium compounds in various syntheses including natural products and biologically active compounds.

  • Thermionics

    Basic Principles of Electronics
    • 1 Edición
    • J. Jenkins + 1 más
    • W. Ashhurst + 1 más
    • Inglés
    Basic Principles of Electronics, Volume I : Thermionics serves as a textbook for students in physics. It focuses on thermionic devices. The book covers topics on electron dynamics, electron emission, and the themionic vacuum diode and triode. Power amplifiers, oscillators, and electronic measuring equipment are studied as well. The text will be of great use to physics and electronics students, and inventors.

  • Progress in Heterocyclic Chemistry

    A Critical Review of the 1992 Literature Preceded by Two Chapters on Current Heterocyclic Topics
    • 1 Edición
    • Volumen 5
    • H. Suschitzky + 1 más
    • Inglés
    Progress in Heterocyclic Chemistry Volume 5 deals critically with original material selected essentially from the 1992 heterocyclic literature. Chapters 1 and 2 are given over to reviews: in the first, SO2 extrusion from five-membered rings is discussed by R.A. Aitken and colleagues, which completes last year's review on this topic. The second review presents a review of 2-acylamino-3-dimeth... in heterocyclic synthesis. The chapters are arranged according to ring sizes as in the previous volumes and are supported by references, numerous diagrams and a subject index.

  • Silicon Carbide — 1968

    Proceedings of the International Conference on Silicon Carbide, University Park, Pennsylvania, October 20-23, 1968
    • 1 Edición
    • H. K. Henisch + 1 más
    • Inglés
    Silicon Carbide — 1968 presents the proceedings of the International Conference on Silicon Carbide held in University Park, Pennsylvania on October 20-23, 1968. The book covers papers about the perspectives on silicon carbide; several problems in the development of silicon carbide semiconductors, such as the control of crystal structure and analysis. The thermal properties of beta-silicon carbide from 20 to 2000 degrees and the influence of impurities on the growth of silicon carbide crystals in chemical reactions and by recrystallization are also discussed. The book then presents papers about silicon carbide single crystal growth using the Norton process; the principles of solution and traveling solvent growth of silicon carbide; the growth of silicon carbide from cobalt-silicon solutions; and the growth of silicon carbide from vapor by the Bridgman-Stockbarger method. Papers about the growth of crystals and epitaxial layers of beta silicon carbide; the heteroepitaxy of beta-silicon carbide employing liquid metals; some aspects of disorder in silicon carbide; and the dependence of physical properties on polytype structure are also considered. The book describes topics about the optical properties of polytypes of silicon carbide as well as the phase stability of silicon carbide against nitrogen. Other papers about the physical and electronic properties of silicon carbide are also discussed in the book. People involved in semiconductor industries will find the book helpful.

  • High Temperature Oxides

    Oxides of Rare Earths, Titanium, Zirconium, Hafnium, Niobium and Tantalum
    • 1 Edición
    • Allen M. Alper
    • Inglés
    Refractory Materials: A Series of Monographs Volume 5 is a collection of works from different scientists who have made important discoveries in fields related to chemistry. The text covers topics such as thoria and yttria, and the refractory oxides of the lanthanide and actinide elements; single-crystal titanates and zirconates; some binary systems of zirconium dioxide; and zircon and zirconates. Also covered are topics such as halfnium oxide – its occurrence, purification, and physical and thermodynamic properties; and the structure and physical properties of Nb2O5 and Ta2O5. The book is recommended for chemists and materials scientists who would like to know more about the studies of other experts in the field and their applications.

  • Methane

    Solubility Data Series
    • 1 Edición
    • Volumen 27
    • H. Lawrence Clever
    • Inglés
    This volume completes the compilation and critical evaluation of solubility data for the first five members of the alkane hydrocarbon series. Literature coverage is complete to mid-1985, and all relevant papers reporting the solubility of methane gas in liquids have been consulted. Where appropriate, the original data have been recalculated in different unit systems, to allow better comparison between data from different sources. This rigorous treatment results in 'recommended' solubility values which can be used with confidence.

  • 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.

  • The Determination of Impurities in Nuclear Grade Sodium Metal

    • 1 Edición
    • Louis Silverman
    • R. Belcher + 1 más
    • Inglés
    International Series of Monographs in Analytical Chemistry, Volume 44: The Determination of Impurities in Nuclear Grade Sodium Metal (and Related Sodium Compounds) provides analytical chemical procedures for the determination of impurities in nuclear grade sodium metal. This book is composed of 25 chapters, and begins with a presentation of the methods for dissolving, bulk separation, sampling, and handling of sodium metal. The rest of the book describes the procedures for impurity determination in nuclear grade sodium metals, including aluminum, bismuth, boron, cadmium, calcium, magnesium, carbon, cesium, and chloride. Other impurities considered include chromium, cobalt, copper, hydrogen, iodine, iron, lead, lithium, manganese, nickel, oxide, oxygen, and phosphorus. The last chapters examine the procedures for determination of potassium, silicon, sulfur, and uranium impurities. This book is of value to analytical and inorganic chemists.

  • Ion Exchange in Analytical Chemistry

    International Series of Monographs in Analytical Chemistry
    • 1 Edición
    • William Rieman + 1 más
    • R. Belcher + 1 más
    • Inglés
    Analytical Chemistry, Volume 38: Ion Exchange in Analytical Chemistry provides a broad survey of the important role that ion exchange can and should play in chemical analysis. This book focuses on the plate-equilibrium theory of chromatography, which is less difficult theoretically than the mass-transfer theory. Organized into 11 chapters, this volume begins with an overview of the earliest recorded application of ion exchange. This text then examines how high temperature affects ion-exchange resins. Other chapters consider the exchange of ions between a solid ion-exchanging material and a solution, which is a typically reversible reaction. This book describes as well the relatively simple separations and other applications of ion exchange to analytical chemistry. The final chapter deals with the interesting nature of the metal complexes formed within the exchanger and describe the use of ion-exchange distribution studies to determine the stability and nature of complexes existing in the solution. This book is a valuable resource for analytical chemists.

  • Applications of Zeeman Graphite Furnace Atomic Absorption Spectrometry in the Chemical Laboratory and in Toxicology

    • 1 Edición
    • C. Minoia + 1 más
    • Inglés
    The book aims at presenting an exhaustive survey of the applications of Electrothermal Atomization Atomic Absorption Spectrometry (ETA-AAS) with Zeeman background correction in a variety of fields. The unique role played by the technique in solving important analytical problems encountered today is highlighted throughout the 29 chapters which make up this multiauthored work. The overall picture that emerges from this collection of contributions testifies to the maturity reached by this instrumental methodology and lays emphasis on its capabilities, still unrivalled for many elements in terms ofoutstanding detection power afforded and minimal amounts of sample required.After an introductory chapter reviewing the major milestones of ETA-AAS over the decades, with special regard to the history and theory of the Zeeman effect and its use in background correction, the contributions which follow are distributed into four main categories, dealing with the analysis respectively of environmental samples, natural waters, foodstuffs and specimens relevant to clinical and toxicological chemistry. The substantial impact of the technique, as deduced from the literature published so far, as well as its future prospects are outlined in the final paper.

  • Discovery of Novel Natural Products with Therapeutic Potential

    • 1 Edición
    • Vincent P. Gullo
    • Inglés
    Although science has discovered effective drugs for many of the diseases that afflict mankind, many human health problems remain untreatable. The search for novel therapeutic agents is always ongoing. This book will describe some of the diverse sourcesof natural products, such as terrestrial and marine environments; and will review how research has increased knowledge of biological systems and human disease, leading to the design of targeted asssays, amenable to high volume screening.

  • Analytical Chemistry of Niobium and Tantalum

    International Series of Monographs on Analytical Chemistry
    • 1 Edición
    • Ross W. Moshier
    • R. Belcher + 1 más
    • Inglés
    Analytical Chemistry of Niobium and Tantalum details the methods in understanding the chemistry of niobium and tantalum, which includes separation, identification, and quantification. The text first discusses the general topics about niobium and tantalum, such as history, metallurgical properties, and applications. Next, the selection covers the properties of niobium and tantalum and their compounds. The subsequent chapters tackle the various analytical chemistry processes that can be applied to niobium and tantalum, such as spectrographic determination; titrimetric methods; and colorimetric determinations. The book will be of great use to chemists, chemical engineers, and metallurgists.

  • Colloquium Spectroscopicum Internationale

    Plenary Lectures Presented at the XVIII Colloquium Spectroscopicum International, Grenoble, France, 15 - 19 September 1975
    • 1 Edición
    • J. P. Robin
    • Inglés
    XVIII Colloquium Spectroscopicum Internationale is a collection of plenary lectures presented at the 18th Colloquium Spectrospicum International, held at Grenoble, France on September 15-19, 1975. This book is composed of seven chapters, and begins with the potentials, advantages, and applications of X-ray and Mössbauer spectroscopy. The succeeding chapters deal with the design of fluorometric methods, the general aspects of the classical light sources (arc and spark) and their contributions to the accuracy of spectrochemical results, and the utility of electron microscopy for structure determination. The final chapters discuss the developments in spectroscopic instrumentation and progress in structure elucidation of natural products using some analytical techniques. This book will prove useful to analytical and organic chemists.

  • Through France with Berzelius

    Live Scholars and Dead Volcanoes
    • 1 Edición
    • C. G. Bernhard
    • Inglés
    There are 165 years between Jöns Jacob Berzelius' and Carl Gustaf Bernhard's excursions through the Massif Central in France. In spite of their circumstantial differences, the similarities between the two men of letters is striking. While Berzelius is renowned as one of the founders of modern chemistry and mineralogy, the bulk of Bernhard's achievement has been in the field of neurophysiology--yet both men emerge as having remarkably similar approaches to science and nature. It was as Berzelius' successor to the post of Secretary of the Royal Swedish Academy of Sciences that first gave Bernhard cause to study his literary remains. This was to provide the inspiration for Bernhard, with Berzelius as his guide, to visit the volcanic landscape, in which the remains of Roman columns, mediaeval castles and cathedrals recalled civilizations which have come and gone through the centuries following the geological eruptions. The book is extensively illustrated with sketches of the countryside, portraits of those known by Berzelius as well as colour photographs of the landscape taken by Bernhard, while the narrative alternates between excerpts of Berzelius' letters and writings and Bernhard's own modern travelogue. The result is a fascinating textual and pictorial record of one of the most beautiful regions of France, and of two highly influential Swedish scientists, spanning the last two centuries.

  • Argon

    • 1 Edición
    • Volumen 4
    • H. L. Clever
    • Inglés
    The users of this volume will find (1) the experimental solubility data of argon gas in liquids as reported in the scientific literature, (2) tables of smoothed mole fraction solubility data for the systems which were studied over a temperature interval, and (3) tables of either tentative or recommended solubility data when two or more laboratories reported solubility data over the same range of temperature and pressure for a system. Users have the option of using the experimental values, either directly or in their own smoothing equations, or of using the smoothed values prepared by the compilers and evaluators

  • Biochemical Lesions and Lethal Synthesis

    International Series of Monographs on Pure and Applied Biology: Modern Trends in Physiological Sciences
    • 1 Edición
    • Rudolph A. Peters
    • Inglés
    International Series of Monographs on Pure and Applied Biology, Volume 18: Biochemical Lesions and Lethal Synthesis focuses on biochemical lesions. The book first discusses biochemical lesions in thiamine deficiency and arsenical substances and biochemical lesions. The text also examines biochemical lesions in mustard gas poisoning. Concerns include sulfone, sulfoxide, vesication, and cross-linking. The book also describes inhibitors of enzymes containing thiol groups and toxicity. Cell division, thiol agents, epidemic dropsy, and sanguinarine are highlighted. The text further focuses on lethal synthesis and carbon-flourine compounds. The synthesis of fluorocitric acid, effects of fluorocitrate, carbon-fluorine compounds, and biochemical lesions induced by fluorocitrate are discussed. The text further describes biochemical lesions in burns and historical points and other biochemical lesions. Muscular contraction, antimetabolites, inborn errors, and study of the biochemistry of burn sites are explained. The text is highly recommended for readers wanting to study biochemical lesions.

  • Anxiety

    Current Trends in Theory and Research
    • 1 Edición
    • Charles D. Spielberger
    • Inglés
    Anxiety: Current Trends in Theory and Research, Volume II discusses the hostile state of inner turmoil called “anxiety”. This volume is divided into three parts. Part IV discusses the theoretical approach concerning emotion, nature of anxiety, and distinctions between anxiety and other fear-related emotions. The experimental approaches to test anxiety and interventions in relation to anxiety in school are elaborated in Part V. Part VI is devoted to summarizing the conceptual and methodological issues in anxiety research. Other topics include the variety of viewpoints on the nature of anxiety, models of psychophysiological disorders, analysis of anxiety as helplessness, and reducing the interfering effects of test anxiety. This publication is recommended for psychiatrists, psychologists, and researchers conducting anxiety research.

  • Chemical Sensor Technology

    • 1 Edición
    • Volumen 1
    • Tetsuro Seiyama
    • Inglés
    Chemical Sensor Technology is a series of annual reviews reporting the latest progress being made in research and technology, both basic and applied, regarding chemical sensors. Chemical sensors continue to grow rapidly in importance encompassing a broad spectrum of technologies covering safety, pollution, fuel economy, medical engineering and industrial processes. Various types of chemical sensors have been devised for detection and monitoring of chemical substances in gases, solutions and organisms, and much work is being done to produce sensitive, selective, reliable and inexpensive sensors. The series aims at contributing to the progress of research and development of chemical sensors.Contributors to the individual volumes are carefully selected by an international editorial board who ensure that as many innovative studies as possible are included. Each article describes a specific topic and is the original work of an expert working in the front lines of chemical sensor research. Contributors are encouraged to describe not only the academic or technological essence of the subject, but also the background and philosophy, evaluation and achievements and future problems. In this way, each topic is described in sufficient depth so as to be useful and stimulating to readers.

  • Modern NMR Techniques for Chemistry Research

    • 1 Edición
    • Volumen 6
    • A.E. Derome
    • Patrick Perlmutter
    • Inglés
    Presents an introduction to modern NMR methods at a level suited to organic and inorganic chemists engaged in the solution of structural and mechanistic problems. The book assumes familiarity only with the simple use of proton and carbon spectra as sources of structural information and describes the advantages of pulse and Fourier transform spectroscopy which form the basis of all modern NMR experiments. Discussion of key experiments is illustrated by numerous examples of the solutions to real problems. The emphasis throughout is on the practical side of NMR and the book will be of great use to chemists engaged in both academic and industrial research who wish to realise the full possibilities of the new wave NMR.

  • Polysaccharides

    Syntheses, Modifications and Structure/Property Relations
    • 1 Edición
    • Volumen 36
    • M. Yalpani
    • Inglés
    This book provides the most up-to-date and comprehensive coverage of the structures and properties of polysaccharides, methods for their characterization, de novo synthesis, and modification, as well as advances in structure/function correlations. Many of these topics are summarized for the first time.A brief survey of polysaccharide structures is given highlighting the most significant advances in analytical and spectroscopic technology (NMR, MS, etc.). A chapter is devoted to glycan properties, including conformational aspects, rheological and compatibility characteristics, etc. There is a comprehensive overview of the de novo synthesis of carbohydrate polymers, the transformation of glycans into novel types of polymers, and the preparation of linear and branched polysaccharide analogues and conjugates with synthetic polymers via chemical and enzymatic approaches. The book also details the factors controlling the uniformity of substitutions in homogeneous and heterogeneous derivatization processes and the elucidation of the substitution patterns of partially modified polysaccharides, through combined spectroscopic and statistical methods.One of the important developments in the glycan field is based on the increasing demand for greater control of the functional properties of these biopolymers. The book provides a very extensive account of various types of modifications, including selective and non-selective chemical techniques, biological methods that facilitate alterations or specific functional groups and properties through the application of synthetic or degradative enzymes, and mutational or recombinant DNA techniques. The coverage extends to the control of glycan integrity and molecular weight through chemical enzymatic, physical or other methods. Electrochemical modification techniques are also discussed.A particularly up-to-date and comprehensive review is given of polysaccharide structure/property relations. Here, the effects of primary structural parameters (composition, molecular size, branching, polyelectrolyte character and non-carbohydrate substituents) are discussed, as are factors which affect glycan solubility, viscosity and gel-forming capacity. Also included are the phenomena resulting from the interactions of polysaccharides with solvents, salts, polyols, surfactants, synthetic and biological polymers. The impact of glycan structural parameters on various biological activities, such as immunological, anticoagulant, and antitumour properties, is surveyed.The book features a foreword by Dr. R.H. Marchessault, and contains almost 2,000 references to the state-of-the-art in the field, as well as an extensive subject index, over 40 tables, and 130 schemes and illustrations. It provides a wealth of valuable information for specialists in polysaccharides, biochemists, biotechnologists, enzymologists, microbiologists, organic chemists, polymer scientists, and others whose work involves these biopolymers.

  • The Quinolones

    • 1 Edición
    • Vincent T. Andriole
    • Inglés
    The Quinolones covers reviews on the history, chemistry and mechanism of action, in vitro properties, pharmacokinetics, clinical overview, toxicity, adverse effects and drug interactions, and future prospects of the 4-quinolones. The book discusses the microbiology of quinolones, particularly with consideration of the development of resistance, pharmacology, toxicology, and clinical uses. Chemists, microbiologists, pharmacologists and clinicians will find the book useful.

  • Advances in Magnetic Resonance

    Volume 8
    • 1 Edición
    • John S. Waugh
    • Inglés
    Advances in Magnetic Resonance, Volume 8 describes the magnetic resonance in spin polarization and saturation transfer. This book discusses the theory of chemically induced dynamic spin polarization; basic results for the radical-pair mechanism; and optical spin polarization in molecular crystals. The theory of optical electronic polarization (OEP); NMR in flowing systems; and applications of NMR in a flowing liquid are also elaborated. This text likewise covers the saturation transfer spectroscopy; studies of spin labels in the intermediate and fast motion regions; and spin-density matrix and the Harniltonian. This publication is beneficial to physical chemistry students and individuals researching on spin polarization.

  • The Chemistry of Oxygen

    Comprehensive Inorganic Chemistry
    • 1 Edición
    • E. A. V. Ebsworth + 2 más
    • Inglés
    The Chemistry of Oxygen provides a comprehensive coverage of the structure, properties, behavior, and chemical reaction of oxygen. The title first details the general information on oxygen, such as the history, occurrence, and various properties. Next, the selection deals with oxygen atoms and ions. Chapter 3 talks about oxide as a class, while Chapter 4 covers the physical and chemical properties of water. The text also details various compounds that have oxygen, such as oxygen fluorides and hydrogen peroxide. The ninth chapter covers the ozone and its related species, and the last chapter discusses other species containing O3 and O4 groups. The book will be of great use to researchers and practitioners of chemistry related discipline.

  • Applications of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry

    • 2 Edición
    • L. M. Jackman + 1 más
    • D. H. R. Barton + 1 más
    • Inglés
    Application of Nuclear Magnetic Resonance Spectroscopy in Organic Chemistry, Second Edition covers the theoretical background necessary for the intelligent application of NMR spectroscopy to common problems encountered in organic chemistry. This book is composed of five parts, and begins with introduction to the theory and practice of nuclear magnetic resonance. The succeeding chapter deals with the theory of chemical effects in NMR spectroscopy. These topics are followed by a discussion on the application of chemical shift to organic compound analysis and the principles of the spin-spin coupling .The final chapter considers the applications of time- dependent phenomena in NMR spectroscopy. This book will prove useful to analytical chemists and researchers in the allied fields.

  • Terpenoids: Structure, Biogenesis, and Distribution

    Recent Advances in Phytochemistry
    • 1 Edición
    • V. C. Runeckles + 1 más
    • Inglés
    Recent Advances in Phytochemistry, Volume 6: Terpenoids: Structure, Biogenesis, and Distribution covers the advances in the chemistry and biochemistry of terpenoids, and the use of information regarding the occurrence of such compounds in genetics and population ecology. The book discusses the applications of physical methods to some structural and stereochemical problems in terpenes and steroids; novel sesquiterpenes isolated in composites; and the chemistry and biogenesis of the quassinoids (Simaroubolides). The text then describes the recent developments in the biosynthesis of plant triterpenes; the mechanisms of indole alkaloid biosynthesis, recognition of intermediacy and sequence by short-term incubation; and the biochemistry and physiology of lower terpenoids. The genetic and biosynthetic relationships of monoterpenes; and the confirmation of a clinal pattern of chemical differentiation in Juniperus virginiana from terpenoid data obtained in successive years are also encompassed. Botanists, biochemists, and people involved in the study of phytochemistry will find the book invaluable.

  • High Pressure Liquids and Solutions

    • 1 Edición
    • Y. Taniguchi + 2 más
    • Inglés
    Pressure, like temperature, is one of the most important parameters governing the state of matter. Today, high-pressure science and technology is applied to diverse research fields: physics, chemistry, biology, earth and marine sciences, material science and technology, chemical engineering, biotechnology and medicine. Research on liquids and solutions at high pressure is not only important for elucidating the structure of liquids, intermolecular interactions between solutes and solvents and chemical reactions in solutions, but also for providing fundamental numerical data for the design of chemical plants and the development of chemical processes. In particular, high-pressure studies of water and aqueous solutions are closely correlated with research into bioscience and biotechnology.In this volume some of the most important and most recent advances in liquids and solutions at high pressure in Japan are presented.

  • Annual Reports in Organic Synthesis — 1978

    • 1 Edición
    • L. G. Wade + 1 más
    • Inglés
    Annual Reports in Organic Synthesis – 1978 presents a collection of 45 abstracted chemistry journals that cover organic synthesis. This book is comprised of eight chapters that cover different aspects of organic synthesis, such as reaction types and methods. The first three chapters tackle carbon–carbon bond forming reactions, oxidations, and reductions. Chapter IV discusses synthesis of heterocycles, and Chapter V covers the use of protecting groups. Chapter VI talks about useful synthetic preparations. Chapters VII and VIII cover the miscellaneous reactions and reviews. The information provided by this text will be most useful to organic chemists.

  • An Introduction to Pharmaceutical Formulation

    The Commonwealth and International Library: Pharmacy and Pharmaceutical Chemistry
    • 1 Edición
    • A. G. Fishburn
    • W. H. Linnell + 1 más
    • Inglés
    An Introduction to Pharmaceutical Formulation describes the various forms in which drugs may be supplied to doctors, patients, and veterinary surgeons. An account is given of the materials which may be added to drugs in order to provide formulated products, and of the methods by which formulations are assessed. The book begins with a background on pharmaceutical formulation, describing manufactured and official formulations, important criteria for a formulation, and technical advances in pharmacy during the post-war period. This is followed by separate chapters on diluents, solvents, and liquid vehicles; thickeners and binders; the chemistry and pharmacology of surface-active agents; and colors, flavors, and preservatives. Subsequent chapters cover solid, liquid, and paste formulations; controlled drug release; the stability of formulations; the importance of the container of the formulation; and large-scale manufacturing of formulated products. This book is intended primarily for students of pharmacy. It is not a textbook of practical or theoretical pharmaceutics but should be read in conjunction with other books on these subjects.

  • Carotenoids

    Contributed Papers Presented at the Fifth International Symposium on Carotenoids Madison, Wisconsin, USA, 23-28 July 1978
    • 1 Edición
    • T. W. Goodwin
    • Inglés
    Carotenoids — 5 is a collection of papers presented at the Fifth International Symposium on Carotenoids held in Madison, Wisconsin, on July 23-28, 1978. The symposium focuses on advances that have been made in understanding carotenoids, including their chemistry, biochemistry, and stereochemistry as well as biosynthesis and biological functions. Topics covered include the industrial applications of carotenoids; synthesis of polyenes via phosphonium ylids; biological functions of vitamin A in normal and transformed tissues; and enzymatic synthesis of carotenes. This volume is comprised of 18 chapters and begins with a review of carotenoid research undertaken over the years in the areas of separation, synthesis, and physical and chemical analysis and further significant advances that are to be expected in the future. The reader is then introduced to the development of the industrial manufacture of carotenoids and vitamin A by isolation and by synthesis, with special emphasis on the use of carotenoids as a preferred class of coloring matters for food and feed. The following chapters explore the progress in carotenoid characterization, chemistry, structures, chemical transformations, and stereochemistry; synthesis of optically active carotenoids and related compounds, carotenoid glycosylesters, and other carotenoids; and genetics and regulation of carotene biosynthesis. The final chapter describes a number of approaches to synthesis of canthaxanthin. This book will be a useful resource for chemists and biochemists.

  • Gas Separation by Adsorption Processes

    • 1 Edición
    • Ralph T. Yang
    • Inglés
    Gas Separation by Adsorption Processes provides a thorough discussion of the advancement in gas adsorption process. The book is comprised of eight chapters that emphasize the fundamentals concept and principles. The text first covers the adsorbents and adsorption isotherms, and then proceeds to detailing the equilibrium adsorption of gas mixtures. Next, the book covers rate processes in adsorbers and adsorber dynamics. The next chapter discusses cyclic gas separation processes, and the remaining two chapters cover pressure-swing adsorption. The book will be of great use to students, researchers, and practitioners of disciplines that involve gas separation processes, such as chemical engineering.

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