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Books > Science & Mathematics > Chemistry > Analytical chemistry > Qualitative analytical chemistry
The last decade has witnessed the discovery of, and dramatic progress in understanding the physics of graphene and related two-dimensional materials. The development of methods for manufacturing and aligning high-quality two-dimensional crystals has facilitated the creation of a new generation of materials: the heterostructures of graphene with hexagonal crystals, in which the graphene electrons acquire new, qualitatively different properties. This thesis provides a comprehensive theoretical framework in which to understand these heterostructures, based on the tight binding model, perturbation theory, group theory and the concept of the moire superlattice (all of which are elucidated). It explains how graphene heterostructures provide new opportunities for tailoring band structure, such as creating additional Dirac points or opening band gaps and how they manifest themselves in transport measurements, optical absorption spectra and the fractal Hofstadter spectra. Also considered are the heterostructures of bilayer graphene and resonant tunneling in aligned graphene/insulator/graphene devices.
This is the second volume of Advances in Acoustic Microscopy. It continues the aim of presenting applications and developments of techniques that are related to high-resolution acoustic imaging. We are very grateful to the authors who have devoted considerable time to preparing these chapters, each of which describes a field of growing importance. Laboratories that have high-performance acoustic microscopes are frequently asked to examine samples for which the highest available resolution is not necessary, and the ability to penetrate opaque layers is more significant. Such applications can be thought of as bridging the gap be tween acoustic microscopy at low gigahertz frequencies, and on the one hand nondestructive testing of materials at low megahertz frequencies and on the other hand medical ultrasonic imaging at low megahertz frequencies. Commercial acoustic microscopes are becoming increasingly available and popular for such applications. We are therefore delighted to be able to begin the volume with chapters from each of those two fields. The first chapter, by Gabriele Pfannschmidt, describes uses of acoustic microscopy in the semiconductor industry. It provides a splendid balance to the opening chapter of Volume 1, which came from a national research center, being written from within a major European electronics industry itself. Dr Pfann schmidt describes the use of two quite different types of acoustic microscopes, and points out the advantages of each for specific purposes.
Molecular Sieves - Science and Technology covers, in a comprehensive manner, the science and technology of zeolites and all related microporous and mesoporous materials. Authored by renowned experts, the contributions are grouped together topically in such a way that each volume of the book series deals with a specific sub-field. Volume 4 covers the characterization of molecular sieves with the help of the most important spectroscopic techniques (Characterization I), i.e. IR, Raman, NMR, EPR, UV-VIS Spectroscopy, X-ray absorption, photoelectron and Mössbauer Spectroscopy. Theory, experiment and application in selected examples are discussed.
This ASI brought together a diverse group of experts who span virology, biology, biophysics, chemistry, physics and engineering. Prominent lecturers representing world renowned scientists from nine (9) different countries, and students from around the world representing eighteen (18) countries, participated in the ASI organized by Professors Joseph Puglisi (Stanford University, USA) and Alexander Arseniev (Moscow, RU). The central hypothesis underlying this ASI was that interdisciplinary research, merging principles of physics, chemistry and biology, can drive new discovery in detecting and fighting chemical and bioterrorism agents, lead to cleaner environments and improved energy sources, and help propel development in NATO partner countries. At the end of the ASI students had an appreciation of how to apply each technique to their own particular research problem and to demonstrate that multifaceted approaches and new technologies are needed to solve the biological challenges of our time. The course succeeded in training a new generation of biologists and chemists who will probe the molecular basis for life and disease.
The 43rd Annual Conference on Applications ofX-ray Analysis was held August 1-5, 1994, at the Sheraton Steamboat Resort & Conference Center in Steamboat Springs, Colorado. The Denver X-Ray Conference has evolved from the 1950's into an international forum for the interaction of scientists, engineers and technologists interested in the use of x-rays in materials characterization. It has not only acted as a venue but has both stimulated and nurtured many of the principal developments in this field over the years. The major changes that have been occurring on the national and international scene as a result of the end of the cold war have dramatic-ally affected the way the materials community does business. The removal of defense priorities and development funds from most new materials initiatives has stimulated the char acterization communities to look to increasing the speed of their methods. This is being accom plished via the development of very fast dynamic characterization procedures which can rapidly and intelligently monitor and optimize the formation of a desired microstructure. The develop ment of intelligent characterization procedures applied in real-time during the manufacturing process can lead to the ability to design desired microstructures. Another potential advantage to this approach is its ability to characterize the actual amount of material which goes into a final product; permitting a rapid transition from R&D to manufacturing by avoiding the prob lems associated with scale-up.
Jump into the HPLC adventure Three decades on from publication of the 1st German edition of Veronika Meyer's book on HPLC, this classic text remains one of the few titles available on general HPLC aimed at practitioners. New sections on the following topics have been included in this fifth edition: Comparison of HPLC with capillary electrophoresisHow to obtain peak capacityvan Deemter curves and other coherencesHydrophilic interaction chromatographyMethod transferComprehensive two-dimensional HPLCFast separations at 1000 barHPLC with superheated water In addition, two chapters on the instrument test and troubleshooting in the appendix have been updated and expanded by Bruno E. Lendi, and many details have been improved and numerous references added. A completely new chapter is presented on quality assurance covering: Is it worth the effort?Verification with a second methodMethod validationStandard operating proceduresMeasurement uncertaintyQualifications, instrument test, and system suitability testThe quest for quality Reviews of earlier editions "That this text is written by an expert in both the practice and teaching of HPLC is evident from the first paragraph....not only an enjoyable, fascinating and easy read, but a truly excellent text that has and will serve many teachers, students and practitioners very well." --"The Analyst" ..".provides essential information on HPLC for LC practitioners in academia, industry, government, and research laboratories...a valuable introduction." - "American Journal of Therapeutics"
Impurities, disorder or amorphous systems - ill-condensed matter - are mostly considered inconveniences in the study of materials, which is otherwise heavily based on idealized perfect crystals. The Kondo effect and the scaling theory of localization are among the fundamental and early discoveries which revealed the novelty hidden in impure or disordered systems. Recent advances in condensed matter physics have emphasized the role of topology, spin-orbit coupling, and certain discrete symmetries such as time reversal in many physical phenomena. These have irreversibly transformed the essential ideas and purview of condensed matter physics, both in theoretical and experimental directions. However, many of these recent developments and their implications are limited to, or by, ideas that pertain to clean systems. This thesis deals with various aspects of these new developments, but in the case of unclean systems. The author introduces new ideas such as amorphous topological insulators, fractalized metals and fractionalized spins.
This book provides a concise introduction to the newly created sub-discipline of solid state physics isotopetronics. The role of isotopes in materials and their properties are describe in this book. The problem of the enigma of the atomic mass in microphysics is briefly discussed. The range of the applications of isotopes is wide: from biochemical process in living organisms to modern technical applications in quantum information. Isotopetronics promises to improve nanoelectronic and optoelectronic devices. With numerous illustrations this book is useful to researchers, engineers and graduate students.
The 2nd International Multidisciplinary Microscopy and Microanalysis Congress & Exhibition (InterM 2014) was held on 16-19 October 2014 in Oludeniz, Fethiye/ Mugla, Turkey. The aim of the congress was to gather scientists from various branches and discuss the latest improvements in the field of microscopy. The focus of the congress has been widened in an "interdisciplinary" manner, so as to allow all scientists working on several related subjects to participate and present their work. These proceedings include 33 peer-reviewed technical papers, submitted by leading academic and research institutions from over 17 countries and representing some of the most cutting-edge research available. The papers were presented at the congress in the following sessions: * Applications of Microscopy in the Physical Sciences * Applications of Microscopy in the Biological Sciences
''Excellent and very timely....It will undoubtedly become a standard reference for the application of circular dichroism (CD) to biomolecules.'' "--- Quarterly Review of Biology," March 1997 '' T]estament to the book's utility is the fact that during the course of my review I had to 'rescue' it from the desks of graduate students on an almost daily basis. In summary, this is a great book.'' "--- American Scientist" ''Well documented chapters provide a very good insight into the problems surrounding the conformation of biomacromolecules...An indispensible source of information.'' "--- Nahrung," 42(2), 1998 Renowned experts present the first state-of-the-art description of circular dichroism spectroscopy (CD). Chapters present in-depth discussions of the history of the field, the theory of CD for application to globular proteins, membrane proteins, peptides, nucleic acids and their interactions, carbohydrates, and instrumentation. Discussions also feature new techniques using synchrotron radiation, vibrational Raman optical activity, and vibrational CD. More than 250 illustrations supplement the text.
Key features: Supported by the latest research and based on the state-of-the-art computational methods in high-accuracy computational spectroscopy of molecules Authored by an authority in the field Accessible to both experts and non-experts working in the area of computational and experimental spectroscopy, in addition to graduate students
We are pleased to present the ?fth volume of Progress in Ultrafast Intense LaserScience.Asthefrontiersofultrafastintenselasersciencerapidlyexpand ever outward, there continues to be a growing demand for an introduction to this interdisciplinary research ?eld that is at once widely accessible and ca- ble of delivering cutting-edge developments. Our series aims to respond to this call by providing a compilation of concise review-style articles written by researchers at the forefront of this research ?eld, so that researchers with d- ferent backgrounds as well as graduate students can easily grasp the essential aspects. As in the previous volumes of PUILS, each chapter of this book begins with an introductory part, in which a clear and concise overview of the topic and its signi?cance is given, and moves onto a description of the authors' most recent research results. All the chapters are peer-reviewed. The articles ofthis?fth volumecovera diverserangeofthe interdisciplinaryresearch?eld, and the topics may be grouped into three categories: coherent responses of gaseousand condensed matter to ultrashortintense laser pulses (Chaps. 1-4), propagationof intense laser pulses (Chaps. 5, 6), and laser-plasma interaction and its applications (Chaps. 7-10). From the third volume, the PUILS series has been edited in liaison with the activities of Center for Ultrafast Intense Laser Science in The University of Tokyo, and JILS (Japan Intense Light Field Science Society), the latter of which has also been responsible for sponsoring the series and making the regularpublicationofitsvolumespossible.Fromthe presentvolume,the C- sortiumonEducationandResearchonAdvancedLaserScience,theUniversity of Tokyo, joins this publication activity as one of the sponsoring programs.
Molecular Sieves- Science and Technology will cover, in a comprehensive manner, the science and technology of zeolites and all related microporous and mesoporous materials. Authored by renowned experts, the contributions will be grouped together topically in such a way that each volume of the book series will be dealing with a specific sub-field. Volume 3 deals with the most widely employed techniques for the post-synthesis modificaton of molecular sieves. Among the topics covered in considerable detail are ion exchange, both in the more conventional variant in aqueous suspension and in the solid-state variant, the various methods for dealumination of zeolites, and the techniques for introducing metallic, ionic, oxidic and sulfidic clusters into the cages and channels of microporous materials.
Leading practitioners describe in detail advanced methods of mass spectrometry used in structural characterization of biomacromolecules of both natural and recombinant origin. They demonstrate by example how these methodologies can solve a wide array of real-world problems in protein biochemistry, immunology, and glycobiology, as well as for human bacterial pathogens, lipids, and nucleic acids. The book offers a unique opportunity to learn these techniques that are revolutionizing the field. Its authoritative assessment in the context of how to solve important and challenging problems in bioscience and medicine ensures a competitive advantage for today's researchers.
Lasers in Analytical Atomic Spectroscopy Edited by Joseph Sneddon • Terry L. Thiem • Yong-Ill Lee This book focuses primarily on the use of lasers in analytical atomic spectroscopy with optical detection, and also includes a chapter describing the use of lasers in inductively coupled plasma—mass spectroscopy (ICP—MS). The book begins with a brief introduction to atomic spectroscopy and lasers, providing the reader with basic theory and information on instrumentation in conventional atomic spectroscopy. Next, the properties, types, and principles of lasers are discussed using a non-mathematical approach. The main section of the book provides detailed descriptions of the four major areas of laser application in analytical atomic spectroscopy, each discussed by an expert in the field: laser excited atomic fluorescence spectrometry (LEAFS); laser ablation for sample introduction, particularly in inductively coupled plasma—atomic emission spectrometry (ICP—AES) and ICP—MS; laser induced breakdown (emission) spectrometry (LIBS); and laser-enhanced ionization (LEI) spectrometry. Lasers in Analytical Atomic Spectroscopy will be of interest to spectroscopists, analytical chemists, and graduate students in these areas. Also available from VCH Applied Laser Spectroscopy Techniques, Instrumentation, and Applications D.L. Andrews, ed. Hardcover. ISBN 1-56081-023-8 Inductively Coupled Plasmas in Analytical Atomic Spectroscopy Second, Revised and Enlarged Edition A. Montaser and D.W. Golightly, eds. Hardcover. ISBN 1-56081-514-0 Atomic Absorption Spectrometry Second, Completely Revised Edition B. Welz Hardcover. ISBN 3-527-26193-1
Although size exclusion chromatography (SEC) is perhaps the most popular and widely used technique for determining the molecular weight distribution of polymeric materials, there have been very few texts written on this topic. During the past decade, SEC has experienced a considerable amount of growth in regard to column and detector technology and new applications. With these advances, SEC can now be used for determining absolute molecular weight, polymer chain conformation and size, and branching, as well as polymer solution properties. This book introduces the reader to the fundamentals of SEC with emphasis on practical aspects of the technique, such as column and mobile selection, calibration, new detector capabilities and guidelines for performing SEC on most types of polymers, especially those of industrial importance. This book is intended for either those new to the field of SEC, or for those research workers who require a more comprehensive background.
Tutorials on Mossbauer Spectroscopy
This book highlights key technologies and identifies areas for further development in proteogenomics. The utility and usefulness of very large Omics data sets (Next Gen Sequencing of DNA, RNA-seq, ribosome profiling, mass spectrometry- and antibody-based proteomics) is discussed and opportunities and challenges of related bioinformatics applications are outlined. The reader will be able to appreciate the interdisciplinary nature of the continuously evolving area of proteogenomics, which has already grown beyond its original concept of verifying gene annotations by proteomics. The chapters presented in this book are arranged to offer a general overview, rather than to provide detailed descriptions of technologies. The selected applications will provide useful insight into the level of detail that can be obtained in relation to certain diseases areas, including cancer biology and personalized medicine. The readers will find that each chapter delivers a comprehensive approach to proteogenomics, each from the point of view of a specific application. Research scientists interested in innovative processes that can offer a unique and at the same time a more complete access to technological developments and concepts that in turn can contribute to a better understand biological functions should read this book.
Diffusion in solids at moderate temperatures is a well-known phenomenon. However, direct experimental evidence about the responsible atomic-scale mechanisms has been scarce, due to difficulties in probing the relevant length- and time-scales. The present thesis deals with the application of X-ray Photon Correlation Spectroscopy (XPCS) for answering such questions. This is an established method for the study of slow dynamics on length-scales of a few nanometres. The scattered intensity in the diffuse regime, i.e. corresponding to atomic distances, is very low, however, and so it has so far been considered impossible to use XPCS for this problem. Threefold progress is reported in this work: It proposes a number of systems selected for high diffuse intensity, it optimizes the photon detection and data evaluation procedures, and it establishes theoretical models for interpretating the results. Together these advances allowed the first successful atomic-scale XPCS experiment, which elucidated the role of preferred configurations for atomic jumps in a copper-gold alloy. The growth in available coherent X-ray intensity together with next-generation X-ray sources will open up a wide field of application for this new method.
The 2007 Spring Meeting of the Arbeitskreis Festk rperphysik was held in Regensburg, Germany, March 2007, in conjunction with the Deutsche Physikalische Gesellschaft. It was one of the largest physics meetings in Europe. The present volume 47 of the Advances in Solid State Physics contains written versions of a large number of the invited talks and gives an overview of the present status of solid state physics where low-dimensional systems are dominating.
This reference examines innovations in separation science for
improved sensitivity and cost-efficiency, increased speed, higher
sample throughput and lower solvent consumption in the assessment,
evaluation, and validation of emerging drug compounds. It
investigates breakthroughs in sample pretreatment, HPLC, mass
spectrometry, capillary electrophoresis and therapeutic drug
monitoring for improved productivity, precision, and safety in
clinical chemistry, biomedical analysis, and forensic
research.
More than 40 renowned authorities carefully introduce and update chapters on the theory, fundamentals, techniques, and instrumentation of thin-layer chromatography (TLC) and high-performance thin-layer chromatography (HPTLC), highlighting the latest procedures and applications of TLC to 19 important compound classes. It is one of the only books available with coverage of TLC applications by compound type. Facilitating industrial adaptation through easy reference, the second edition supports practical research strategies with extensive tables of data, offers numerous figures that illustrate techniques and chromatograms, and includes a glossary as well as a directory of equipment suppliers.
Electron Paramagnetic Resonance (EPR) spectroscopy - also sometimes termed Electron Spin Resonance spectroscopy - has manifold potential uses in biochemistry and medicine. The paramount importance of EPR spectroscopy applied to biological tissues and fluids is that it identifies the changes in redox processes that contribute to disease. EPR spectroscopy has come a long way from its original use to detect malignant tumors. For example, the development and later refinement of methods of low-temperature registration of biological tissues widened the scope of EPR spectroscopy. Innovations made possible by the introduction of spin labels, probes, and traps made EPR spectroscopy ever more applicable to biochemistry and medicine, to the point where in vivo studies are being carefully considered. This comprehensive book discusses spectra of many tissues and bodily fluids, and the quantitative nature of paramagnetic centers in both normal individuals and patients suffering from a variety of diseases. Special attention is given to the EPR examination of bio-molecules, such as enzymes, polypeptides, vitamins, lipids, hydrocarbons, etc., which play an essential role in human activity. This book will be of great interest to physicians specializing in many different areas. Similarly, biologists, biochemists, biophysicists, and chemists will find this book very useful. It has also been written so that it may be used as a textbook at graduate level.
This book primarily focuses on the radiation effects and compact model of silicon-germanium (SiGe) heterojunction bipolar transistors (HBTs). It introduces the small-signal equivalent circuit of SiGe HBTs including the distributed effects, and proposes a novel direct analytical extraction technique based on non-linear rational function fitting. It also presents the total dose effects irradiated by gamma rays and heavy ions, as well as the single-event transient induced by pulse laser microbeams. It offers readers essential information on the irradiation effects technique and the SiGe HBTs model using that technique.
Provides an engaging account of how genetic abnormalities, neurobiology and neuropsychology work in concert to manifest cognitive-behavioral dysfunction. The authors have woven the various molecular genetic, genomic, neurophysiological and neurobehavioral threads together into a cohesive fabric of human genes, brain, and behavior. The first section provides and introduction to neurobehavioral disorders and their phenotypes in order to investigate the pathway between genes and behavior. The second section covers autosomal disorders that produce neurobehavioral dysfunction including neurofibromatosis, Prader-Willi syndrome, and tuberous sclerosis among others. The final section considers X-linked disorders in which syndromal and nonsyndromal forms of XLMR are present. It includes the first comprehensive account of the genotype and phenotype in FRAXE, the other fragile X mutation. |
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