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Books > Science & Mathematics > Chemistry > Analytical chemistry
This book is devoted to the synthetic and physical chemistry of aromatic thiols and their closest derivatives, sulfides, sulfoxides, sulfones, including those substituted by various functional groups such as acyl and thioacyl, alkoxide, ester, hydroxyl and halogens. In some cases, for comparison, selenium and oxygen analogues are also detailed. The main focus of the book is on synthetic methods, both traditional and new, based on the use of transition metals as catalysts, as well as the reactivity of the compounds obtained. Its addition to the influence of conformational and electronic factors on spectral (NMR, IR, UV, NQR) and electrochemical characteristics of the compounds is presented. Finally, the book describes the application of aromatic thiols and their derivatives as drug precursors, high-tech materials, building blocks for organic synthesis, analytical reagents and additives for oils and fuels. It is a useful handbook for all those interested in organosulfur chemistry.
The Springer Handbook of Enzymes provides concise data on some 5,000 enzymes sufficiently well characterized - and here is the second, updated edition. Their application in analytical, synthetic and biotechnology processes as well as in food industry, and for medicinal treatments is added. Data sheets are arranged in their EC-Number sequence. The new edition reflects considerable progress in enzymology: the total material has more than doubled, and the complete 2nd edition consists of 39 volumes plus Synonym Index. Starting in 2009, all newly classified enzymes are treated in Supplement Volumes.
Many fundamental aspects of the methods used in mass spectrometry are presented here, with reference to recent developments. The principles and applications of electrospray, ion spray and MALDI ionization technique are included, together with optimised GC/MS interfacing systems and tools for quantitative analysis. There is also a comprehensive treatment of modern instrumentation for mass analysis and detection. The major part of the book deals with bioanalytical applications to peptides, proteins, oligonucleotides, polysaccharides, lipids and plant metabolites. Several contributions are devoted to the evaluation of adduct formation between DNA and carcinogens. Environmental applications are also included, with examples of some specific cases. Fundamentals and applications are treated with the same degree of depth, and the first two parts of the book therefore provide a basis for the understanding of the biomolecular-applications section. The book is intended for advanced graduate students of chemistry who have learned some basic mass spectrometry, and is also suitable for PhD students in chemistry, biology and medicine, as well as researchers in academic and industrial laboratories.
Tian Lu's dissertation describes major advances in ultrathin-layer chromatography (UTLC), liquid chromatography and surface-assisted laser desorption ionization (SALDI), and matrix-enhanced SALDI (ME-SALDI) mass spectrometry. Lu describes the fabrication of electrospun polyvinyl alcohol (PVA) UTLC plates using an in-situ crosslinking electrospinning technique. The author improved the efficiency of PVA plates greatly compared to the efficiency of silica HPTLC plates. Also highlighted in this thesis is an edge-plane based ordered-carbon surface that provides unique selectivity in liquid chromatography. Further developments include polar analytes, such as amino acids, nucleotides and nucleosides which can be well-retained and separated in the edge-plane ordered-carbon stationary phase. Also, the author studied and detected mass spectra of organic polymers as high as 900,000 Da, the highest molecular weight that has been studied by SALDI to date using the carbon nanofibrous substrate. This thesis has led to a number of publications in high-impact journals.
Topological insulators are insulating in the bulk, but process
metallic states present around its boundary owing to the
topological origin of the band structure. The metallic edge or
surface states are immune to weak disorder or impurities, and
robust against the deformation of the system geometry. This book,
the first of its kind on topological insulators, presents a unified
description of topological insulators from one to three dimensions
based on the modified Dirac equation. A series of solutions of the
bound states near the boundary are derived, and the existing
conditions of these solutions are described. Topological invariants
and their applications to a variety of systems from one-dimensional
polyacetalene, to two-dimensional quantum spin Hall effect and
p-wave superconductors, and three-dimensional topological
insulators and superconductors or superfluids are introduced,
helping readers to better understand this fascinating new
field.
This book is the first comprehensive work to be published on far-ultraviolet (FUV) and deep-ultraviolet (DUV) spectroscopy, subjects of keen interest because new areas of spectroscopy have been born in the FUV and DUV regions. For example, FUV spectroscopy in condensed matter has become possible due to the development of attenuated total reflection/FUV spectroscopy. As other examples, DUV surface-enhanced Raman scattering and DUV tip-enhanced Raman scattering have received great attention. Imaging by DUV spectroscopy has also become an area of interest. More recently, FUV and DUV spectroscopy have shown potential for applications in several fields including industry. All these topics are described in this book. Doctoral students and researchers in universities and national research institutes as well as researchers in various industries will find this volume highly useful.
This book compares and offers a comprehensive overview of nine analytical techniques important in material science and many other branches of science. All these methods are already well adapted to applications in diverse fields such as medical, environmental studies, archaeology, and materials science. This clearly presented reference describes and compares the principles of the methods and the various source and detector types.
Simulation of materials at the atomistic level is an important tool in studying microscopic structures and processes. The atomic interactions necessary for the simulations are correctly described by Quantum Mechanics, but the size of systems and the length of processes that can be modelled are still limited. The framework of Gaussian Approximation Potentials that is developed in this thesis allows us to generate interatomic potentials automatically, based on quantum mechanical data. The resulting potentials offer several orders of magnitude faster computations, while maintaining quantum mechanical accuracy. The method has already been successfully applied for semiconductors and metals.
This book disseminates information on paper-based diagnostics devices and describes novel paper materials, fabrication techniques, and Basic Paper-based microfluidics/electronics theory. The section on sample preparation, paper-based electronics/sensors for developing paper-based point-of-care (POC) systems also contains detailed descriptions. In the application sections this book covers sensing technique for DNA/RNA, bacteria/virus and integration of lateral flow assay. The book provides deep understanding and knowledge of paper-based diagnostic device development in terms of concept, materials, fabrication and applications.
This thesis provides the first successful study of jump diffusion processes in glasses on the atomic scale, utilizing a novel coherent technique. This new method, called atomic-scale X-ray Photon Correlation Spectroscopy or aXPCS, has only recently been proven to be able to capture diffusion processes with atomic resolution in crystal systems. With this new toolkit for studying atomic diffusion in amorphous systems, new insight into basic processes in a wide range of technically relevant materials, like fast ionic conductors, can be obtained.
The behavior of nanoscale materials can change rapidly with time either because the environment changes rapidly or because the influence of the environment propagates quickly across the intrinsically small dimensions of nanoscale materials. Extremely fast time resolution studies using X-rays, electrons and neutrons are of very high interest to many researchers and is a fast-evolving and interesting field for the study of dynamic processes. Therefore, in situ structural characterization and measurements of structure-property relationships covering several decades of length and time scales (from atoms to millimeters and femtoseconds to hours) with high spatial and temporal resolutions are crucially important to understand the synthesis and behavior of multidimensional materials. The techniques described in this book will permit access to the real-time dynamics of materials, surface processes and chemical and biological reactions at various time scales. This book provides an interdisciplinary reference for research using in situ techniques to capture the real-time structural and property responses of materials to surrounding fields using electron, optical and x-ray microscopies (e.g. scanning, transmission and low-energy electron microscopy and scanning probe microscopy) or in the scattering realm with x-ray, neutron and electron diffraction.
Scientists from many disciplines require making observations which are dependent upon the behavior of compounds in solution. This ranges from areas in geography, such as oceanography, to areas in chemistry, such as chromatography, to areas in biology, such as pharmacology. Historically, information would be obtained by observing a response for a given set of conditions and then the conditions would be changed and a new response obtained. In this approach there would be little effort made to actually understand how a compound was behaving in solution but rather just the response was noted. Understanding the behavior of compounds in solution is critical to understanding their behavior in biological systems. This has become increasingly important during the last twenty years as an understanding of the biochemistry related to human illness has become better understood. The development of the pharmaceutical industry and the need to rapidly screen large numbers of compounds has made scientists in the area of drug development aware that the pharmacological activity of compounds can be predicted by knowing their solution physical chemical properties. This is not to say that a specific drug-active site interaction can be predicted but rather a prediction can be made whether or not a compound will be absorbed, transported, or distributed within a physiological system in such a way that an interaction can occur.
This thesis addresses the development of a new force spectroscopy tool, correlation force spectroscopy (CFS) for the measurement of the properties of very small volumes of material (molecular to m3) at kHz-MHz frequency range. CFS measures the simultaneous thermal fluctuations of two closely-spaced atomic force microscopy (AFM) cantilevers. CFS then calculates the cross-correlation in the thermal fluctuations that gives the mechanical properties of the matter that spans the gap of the two cantilevers. The book also discusses development of CFS, its advantages over AFM, and its application in single molecule force spectroscopy and micro-rheology.
The directory Who's Who in Analytical Chemistry - Europe comprises information on more than 700 European analytical scientists including complete addresses, telephone and fax numbers, fields of expertise, research topics as well as consulting activities. Private, governmental and official laboratories are also included. Exhaustive indexes allow easy access to all entries. The increasing demand for internationally approved professionals in all fields of analytical chemistry makes this volume an invaluable source of information for the analytical industry, R + D institutions, consultants, private laboratories and university departments seeking for cooperation and service partners or consultancy.
This book is a manual of measurement of colloids and interfaces designed especially for new researchers who have just begun research on these topics. The book is written by active researchers in the field of colloids and interfacial chemistry, based on the practical experience of the authors. In each chapter, the key points of measurement, how to analyze data correctly, points to be careful about, and merits of a particular method are concisely explained from the point of view of the readers. Not only in industries such as cosmetics and pharmaceuticals but also in academic studies of nanotechnology, correct understanding of colloid and interface phenomena is vital because the properties of these items, however small, are affected by the nature of interfaces. This book will be particularly useful for researchers who are not yet fully confident of the measurement techniques that are clearly explained here.
Specialist Periodical Reports provide systematic and detailed review coverage of progress in the major areas of chemical research. Written by experts in their specialist fields the series creates a unique service for the active research chemist, supplying regular critical in-depth accounts of progress in particular areas of chemistry. For over 80 years the Royal Society of Chemistry and its predecessor, the Chemical Society, have been publishing reports charting developments in chemistry, which originally took the form of Annual Reports. However, by 1967 the whole spectrum of chemistry could no longer be contained within one volume and the series Specialist Periodical Reports was born. The Annual Reports themselves still existed but were divided into two, and subsequently three, volumes covering Inorganic, Organic and Physical Chemistry. For more general coverage of the highlights in chemistry they remain a 'must'. Since that time the SPR series has altered according to the fluctuating degree of activity in various fields of chemistry. Some titles have remained unchanged, while others have altered their emphasis along with their titles; some have been combined under a new name whereas others have had to be discontinued. The current list of Specialist Periodical Reports can be seen on the inside flap of this volume.
The work presented in this thesis established the existence of wobbling at low spin and low deformation in the Z~60, N~76 nuclear region. This opens the region to further searches for wobbling and shows that wobbling is not confined to a particular quasiparticle orbital, spin or deformation. While deformed nuclei usually have axial shape, triaxial shapes have been predicted at low to moderate spins in certain regions of the nuclear chart (e.g. Z~60, N~76 and Z~46, N~66). Observation of one of the fingerprints of triaxiality, chirality and wobbling, guarantees that the nucleus is axially asymmetric. While chirality has been observed in numerous nuclei from many regions of the nuclear chart, wobbling, prior to this work, had only been observed at high spins in super deformed bands in five nuclei confined to the Z~70, N~90 region. Additionally, this dissertation establishes a new interpretation for the wobbling phenomenon. It shows for the first time that the nucleon aligns to the short axis, which explains the decrease in wobbling energies with angular momentum seen on this and all previous wobbling nuclei while still explaining the observed B(E2out)B(E2in) ratios. This is a new phenomenon, which is in contrast to the increase of the wobbling energies predicted by Bohr and Mottelson.
This thesis examines various aspects of excess excitation energy dissipation via dynamic changes in molecular structure, vibrational modes and solvation. The computational work is carefully described and the results are compared to experimental data obtained using femtosecond spectroscopy and x-ray scattering. The level of agreement between theory and experiment is impressive and provides both a convincing validation of the method and significant new insights into the chemical dynamics and molecular determinants of the experimental data. Hence, the method presented in the thesis has the potential to become a very important contribution to the rapidly growing field of femtosecond x-ray science, a trend reflected in the several free-electron x-ray lasers (XFELs) currently being built around the world. Light-induced chemical processes are accompanied by molecular motion of electrons and nuclei on the femtosecond time scale. Uncovering these dynamics is central to our understanding of the chemical reaction on a fundamental level. Asmus O. Dohn has implemented a highly efficient QM/MM Direct Dynamics method for predicting the solvation dynamics of transition metal complexes in solution.
This book, "Integrated Chemical Microsensor Systems in CMOS Technology," provides a comprehensive treatment of the highly interdisciplinary field of CMOS chemical microsensor systems. It is targeted at students, scientists and engineers who are interested in gaining an introduction to the field of chemical sensing since all the necessary fundamental knowledge is included. However, as it provides detailed information on all important issues related to the realization of chemical microsensors in CMOS technology, it also addresses experts well familiar with the field. After a brief introduction, the fundamentals of chemical sensing are presented. Fabrication and processing steps that are commonly used in the semiconductor industry are then detailed followed by a short description of the microfabrication techniques, and of the CMOS substrate and materials. Thereafter, a comprehensive overview of semiconductor-based and CMOS-based transducer structures for chemical sensors is given. CMOS-technology is then introduced as platform technology, which enables the integration of these microtransducers with the necessary driving and signal conditioning circuitry on the same chip. In a next section, the development of monolithic multisensor arrays and fully developed microsystems with on-chip sensor control and standard interfaces is described. A short section on packaging shows that techniques from the semiconductor industry can be applied to chemical microsensor packaging. The book concludes with a brief outlook on future developments, such as the realization of more complex integrated microsensor systems and methods to interface biological materials, such as cells, with CMOS microelectronics.
The book deals with the theory and practice of all electrophoretic
steps leading to proteome analysis, i.e. isoelectric focusing
(including immobilized pH gradients), sodium dodecyl sulphate
electrophoresis (SADS-PAGE) and finally two-dimensional maps. It is
a reasoned collection of all modern, relevant, up-to-date
methodologies leading to successful fractionation, analysis and
characterization of every polypeptide spot in 2-D map analysis. It
includes chapters on the most sophisticated mass spectrometry
developments and it helps the reader in navigating through the most
important databases in proteome analysis, including step by step
tours in selected sites. Yet, this book's unique strength and
feature is the fact that it combines not only practice (in common
with any other book on this topic) but also theory, by giving a
detailed treatment on the most advanced theoretical treatments of
steady-state techniques, such as isoelectric focusing and
immobilized pH gradients. A lot of this theory is newly developed
and presented to the public for the first time. Thus, this book
should satisfy not only the needs of every day practitioners, but
also the desires of the most advanced theoreticians in the field,
who will surely appreciate the novel theories presented here.
Analytical chemists and materials scientists will find this a useful addition to their armory. The contributors have sought to highlight the present state of affairs in the validation and quality assurance of fluorescence measurements, as well as the need for future standards. Methods included range from steady-state fluorometry and microfluorometry, microscopy, and micro-array technology, to time-resolved fluorescence and fluorescence depolarization imaging techniques.
This book provides in-depth knowledge about the fabrications, structures, properties and applications of three outstanding electrochemically engineered nanoporous materials including porous silicon, nanoporous alumina and nanotubular titania. The book integrates three major themes describing these materials. The first theme is on porous silicon reviewing the methods for preparation by electrochemical etching, properties and methods for surface functionalization relevant for biosensing applications. Biomedical applications of porous silicon are major focus, described in several chapters reviewing recent developments on bioanalysis, emerging capture probes and drug delivery. The second theme on nanoporous alumina starts with describing the concept of self-organized electrochemical process used for synthesis nanopore and nanotube structures of valve metal oxides and reviewing recent development and progress on this field. The following chapters are focused mainly on optical properties and biosensing application of nanoporous alumina providing the reader with the depth of understanding of the structure controlled optical and photonic properties and design of optical biosensing devices using different detection principles such as photoluminescence, surface plasmon resonance, reflective spectrometry, wave guiding, Raman scattering etc. The third theme is focused on nanotubular titania reviewing three key applications including photocatalysis, solar cells and drug delivery. The book represents an important resource for academics, researchers, industry professionals, post-graduate and high-level undergraduate students providing them with both an overview of the current state-of-the-art on these materials and their future developments.
During the past 15 years, there has been remarkable progress in the analysis and manipulation of DNA and its use in nanotechnology. DNA analysis is ubiquitous in molecular biology, medical diagnostics, and forensics. Much of the readout technology is based on fluorescence detection. This volume contains contributions from many experts in the field who present an overview of many aspects of DNA technology. These chapters provide an understanding of the underlying principles and technology, rather than an exhaustive review of the literature. Written in a clear straightforward style, this book is an excellent introduction for any scientist to the use of fluorescence in DNA analysis. DNA Technology is an essential reading for all academics, bench scientists, and industry professionals wishing to take advantage of the latest and greatest in this continuously emerging field. Key Features:
This 8-volume set provides a systematic description on 8,350 active marine natural products from 3,025 various kinds of marine organisms. The diversity of structures, biological resources and pharmacological activities are discussed in detail. Molecular structural classification system with 264 structural types are developed as well. The 3rd volume mainly illustrates the molecular formula and structures of alkaloids. .
As a spectroscopic method, Nuclear Magnetic Resonance (NMR) has seen spectacular growth over the past two decades, both as a technique and in its applications. Today the applications of NMR span a wide range of scientific disciplines, from physics to biology to medicine. Each volume of Nuclear Magnetic Resonance comprises a combination of annual and biennial reports which together provide comprehensive of the literature on this topic. This Specialist Periodical Report reflects the growing volume of published work involving NMR techniques and applications, in particular NMR of natural macromolecules which is covered in two reports: "NMR of Proteins and Acids" and "NMR of Carbohydrates, Lipids and Membranes." For those wanting to become rapidly acquainted with specific areas of NMR, this title provides unrivalled scope of coverage. Seasoned practitioners of NMR will find this an in valuable source of current methods and applications. Specialist Periodical Reports provide systematic and detailed review coverage in major areas of chemical research. Compiled by teams of leading authorities in the relevant subject areas, the series creates a unique service for the active research chemist, with regular, in-depth accounts of progress in particular fields of chemistry. Subject coverage within different volumes of a given title is similar and publication is on an annual or biennial basis. |
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