Resultados de Pesquisa

INGLÊS

Unknown Urban Realm - Methodology And Results Of A Content Analysis Of The Papers Presented At The Congress “Citizen And City In The Year 2000”

~~59,61€~~ 47,69€ 20% IMEDIATO + 5% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Another variant of the hermeneutical method is to interpret the author's motives and intentions in writing the document, either by quoting and interpreting the document itself or by comparing it with the biography of the author.
INGLÊS

Advances In Coal Spectroscopy

~~171,59€~~ 137,27€ 20% IMEDIATO + 5% EM CARTÃO

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 The past decade has witnessed major advances in our understanding of the chemical composition, structure, and reactivity of the complex organic-rich fossil matter known as "coal.
INGLÊS

Liquid Chromatography/Mass Spectrometry - Techniques And Applications

de Alfred L. Yergey, Charles G. Edmonds, Ivor A.S. Lewis e Marvin L. Vestal

~~171,59€~~ 137,27€ 20% IMEDIATO + 5% EM CARTÃO

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 ) wishes to acknowledge the en- couragment of Professor J. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 1 . . . . . . . . . . . Direct Liquid Introduction Interfaces . . . . . . . . . . 5 . . Introduction . Operating Principles . Specific DLI Interfaces . Capillary Inlets . Diaphragm Interfaces . Nebulizing Interfaces .
INGLÊS

Ion Chromatography

de Hamish Small

~~171,59€~~ 137,27€ 20% IMEDIATO + 5% EM CARTÃO

DISPONIBILIDADE IMEDIATA

 Bewitched is an odd word with which to begin a chemical textbook. Yet that is a fair description of how I reacted on first leaming of ion exchange and imagining what might be done with it. That initial fascination has not left me these many years later, and it has provided much ofthe motivation for writing this book. The perceived need for a text on the fundamentals of ion chromatography provided the rest. Many readers will have a general idea of what ion chromatography is and what it does. Briefly, for those who do not, it is an umbrella term for a variety of chromatographie methods for the rapid and sensitive analysis of mixtures of ionic species. It has become highly developed in the last decade, and while it is now routinely used for the determination of organic as weH as inorganic ions, its initial impact was greatest in the area of inorganic analysis. In the past the determination of inorganic ions, particularly anions, meant laborious, time-con- suming, and often not very sensitive "wet chemieal" methods. In the last ten years that has changed radically as ion chromatography has supplanted these older methods.
INGLÊS

Glow Discharge Spectroscopies

~~237,84€~~ 190,27€ 20% IMEDIATO + 5% EM CARTÃO

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 Covers fundamental plasma processes, laser-based methods, thin film analysis, and many other processes to provide the researcher with a technical reference of these devices.
INGLÊS

Mass Spectrometry - Clinical And Biomedical Applications

~~171,59€~~ 137,27€ 20% IMEDIATO + 5% EM CARTÃO

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 In response to the growing use of mass spectrometry in the clinical and biomedical fields, this book collects recent research involving electrospray ionization, neuronal systems, and structural modifications of proteins. The significant advances in instrumentation, methodology, experimentation presented herein will serve to expand the current concept of clinical mass spectrometry.
INGLÊS

Photoelectron And Auger Spectroscopy

de Thomas Carlson

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 In 1970 when I first seriously contemplated writing a book on electron spectroscopy, I recognized the impossibility of completely reaching my desired goals. First, the field was expanding (and still is) at such a rate that a definitive statement of the subject is not possible. The act of following the literature comprehensively and summarizing its essential content proved to be a diver- gent series. On the other hand, the field has increased to such a size that violent changes in its basic makeup no longer occur with the frequency that was present in its early days. Furthermore, the excitement of electron spectro- scopy lies in its many-faceted interrelationships. In the era of specialization, electron spectroscopy is an open-ended subject continually bringing together new aspects of science. I wished to discuss not just one type of electron spectro- scopy, but as many as would be possible. The book as it stands concentrates its attention on x-ray photoelectron spectroscopy, but also presents the basis of Auger electron spectroscopy and uv photoelectron spectroscopy, as well as mentioning many of the other branches of the field. A large, many-author volume might be an answer to some of these problems. However, though anyone person possesses only a limited amount of expertise, I have always enjoyed books by a single author since what they lack in detailed knowledge they gain in a unified viewpoint. I hope the final product, though limited in its attainment of these goals, will still be of some merit.
INGLÊS

Structural Materials In Nuclear Power Systems

de J. T. Adrian Roberts

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 In recent years the effort devoted to assuring both the safety and reliability of commercial nuclear fission power reactors has markedly increased. The incentives for performing this work are large since the resulting im provement in plant productivity translates into lower fuel costs and, more importantly, reduced reliance on imported oil. Reliability and availability of nuclear power plants, whether fission or fusion, demand that more attention be focused on the behavior of materials. Recent experiences with fission power indicate that the basic properties of materials, which categorize their reliable behavior under specified conditions, need reinforcement to assure trouble-free operation for the expected service life. The pursuit of additional information con tinues to demand a better understanding of some of the observed anom alous behavior, and of the margin of resistance of materials to unpre dictable service conditions. It is also apparent that, next to plasma heating and confinement, materials selection represents the most serious chal lenge to the introduction of fusion power. The recognition of the importance of materials performance to nu clear plant performance has sustained a multimillion dollar worldwide research and development effort that has yielded significant results, both in quantification of the performance limits of materials in current use and the development and qualification of new materials. Most of this infor mation appears in the open literature in the form of research reports, journal articles, and conference proceedings.
INGLÊS

Computer-Enhanced Analytical Spectroscopy

~~59,61€~~ 47,69€ 20% IMEDIATO + 5% EM CARTÃO

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 June 1986 brought together some of the world's leaders in computer- enhanced analytical spectroscopy at Snowbird, Utah, for what the attendees decided to call "The First Hidden Peak Symposium."
INGLÊS

Ion-Selective Electrodes In Analytical Chemistry

de Henry Freiser

~~59,61€~~ 47,69€ 20% IMEDIATO + 5% EM CARTÃO

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 We continue in this second volume the plan evident in the first; i.e., of presenting a number of well-rounded up-to-date reviews of important developments in the exciting field of ion-selective electrodes in analytical chemistry. In this volume, in addition to the exciting applications of ISE''S to biochemistry systems represented by the description of enzyme electrodes, there is featured the most recent development in ISE''S, namely, the joining of the electrochemical and solid state expertise, resulting in CHEMFETS. The scholarly survey of the current status of ISE''S will undoubtedly be welcomed by all workers in the field. Tucson, Arizona Henry Freiser vii Contents Chapter 1 Potentiometric Enzyme Methods Robert K. Kobos 1. Introduction . . . . . . 1 2. Soluble Enzyme Systems . . . 5 2.1. Substrate Determinations 5 2.2. Enzyme Determinations . 13 2.3. Inhibitor Determinations. 18 3. Immobilized Enzyme Systems . 19 3.1. Methods of Immobilization. 19 3.2. Characteristics of Immobilized Enzymes 23 3.3. Analytical Applications with Ion-Selective Electrodes 23 4. Enzyme Electrodes 31 4.1. Urea Electrodes 35 4.2. Amygdalin Electrodes 39 4.3. Glucose Electrodes . 40 4.4. Penicillin Electrodes 40 4.5. Amino Acid Electrodes 41 4.6. Nucleotide Electrodes 46 4.7. Uric Acid Electrode 47 4.8. Creatinine Electrode 48 48 4.9. Acetylcholine Electrodes. 4.10. D-Gluconate Electrode 49 4.11. Lactate Electrode 49 4.12. Inhibitor Determination 50 4.13. Substrate Electrodes 50 4.14. Current Trends . . . .
INGLÊS

Applied Atomic Spectroscopy

de E. L. Grove

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 From the first appearance of the classic The Spectrum Analysis in 1885 to the present the field of emission spectroscopy has been evolving and changing. Over the last 20 to 30 years in particular there has been an explosion of new ideas and developments. Of late, the aura of glamour has supposedly been transferred to other techniques, but, nevertheless, it is estimated that 75% or more of the analyses done by the metal industry are accomplished by emission spectroscopy. Further, the excellent sensitivity of plasma sources has created a demand for this technique in such divergent areas as direct trace element analyses in polluted waters. Developments in the replication process and advances in the art of pro- ducing ruled and holographic gratings as well as improvements in the materials from which these gratings are made have made excellent gratings available at reasonable prices. This availability and the development of plane grating mounts have contributed to the increasing popularity of grating spectrometers as com- pared with the large prism spectrograph and concave grating mounts. Other areas of progress include new and improved methods for excitation, the use of controlled atmospheres and the extension of spectrometry into the vacuum region, the widespread application of the techniques for analysis of nonmetals in metals, the increasing use of polychrometers with concave or echelle gratings and improved readout systems for better reading of spectrographic plates and more efficient data handling.
INGLÊS

Transform Techniques In Chemistry

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 The application of the Fourier transform is being seen to an increasing extent in all branches of chemistry, but it is in the area of chemical analysis that the greatest activity is taking place. Fourier transform infrared and nuclear magnetic resonance spectrometry are already routine methods for obtaining high-sensitivity IR and NMR spectra. Analogous methods are now being developed for mass spectrometry (Fourier transform ion cyclo tron resonance spectrometry) and microwave spectroscopy, and Fourier transform techniques have been successfully applied in several areas of electrochemistry. In addition the fast Fourier transform algorithm has been used for smoothing, interpolation, and more efficient storage of data, and has been studied as a potential method for more efficient identification of samples using pattern recognition techniques. Linear transforms have also been shown to be useful in analytical chemistry. Probably the most important of these is the Hadamard transform, which has been applied in alternative methods for obtaining IR and NMR data at high sensitivity. Even though measurements involving this algorithm will probably not be applied as universally as their Fourier transform ana logs, in the area of pattern recognition application of the Hadamard trans form will in all probability prove more important than application of the Fourier transform.
INGLÊS

Modern Fluorescence Spectroscopy

de E. L. Wehry

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 Since the appearance of the first two volumes of Modern Fluorescence Spectroscopy in 1976, important advances continue to be made in both the techniques and applications of molecular luminescence.
INGLÊS

Analytical Atomic Spectroscopy

de William Schrenk

~~151,05€~~ 120,84€ 20% IMEDIATO + 5% EM CARTÃO

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 To meet this objective, the book includes an elementary treatment of the origin of atomic spectra, the instrumentation and accessory equipment used in atomic spectroscopy, and the principles involved in arc-spark emission, flame emission, atomic absorption, and atomic fluorescence.
INGLÊS

Chemical Derivatization In Analytical Chemistry - Chromatography

~~59,61€~~ 47,69€ 20% IMEDIATO + 5% EM CARTÃO

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 Chromatography.
INGLÊS

Analytical Advances For Hydrocarbon Research

~~118,59€~~ 94,87€ 20% IMEDIATO + 5% EM CARTÃO

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 Determining the composition and properties of complex hydrocarbon mixtures in petroleum, synthetic fuels, and petrochemical products usually requires a battery of analytical techniques that detect and measure specific features of the molecules, such as boiling point, mass, nuclear magnetic resonance frequencies, etc.
INGLÊS

Mass Spectrometry - Clinical And Biomedical Applications

~~171,59€~~ 137,27€ 20% IMEDIATO + 5% EM CARTÃO

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 Reviews novel instrumentation and techniques as applied to the analysis of diacylglycerylphospholipids, modifications to DNA, and the characterization of variant hemoglobins. This book reflects various approaches mass spectroscopists apply to clinical and biomedical challenges.
INGLÊS

Modern Fluorescence Spectroscopy

de Earl Wehry

~~95,40€~~ 76,32€ 20% IMEDIATO + 5% EM CARTÃO

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 The principles of fluorescence spectroscopy are by now well established, and, after a rather lengthy gestation period, the technique is now routinely applied to a broad spectrum of problems, ranging from mechanistic photo chemistry to chemical analyses in biomedical and environmental systems of structure and function in biological macromolecules. Phosphor to probes escence spectrometry and chemiluminescence are also well-known tech niques; they are somewhat less well established than fluorescence (at least in analytical chemistry), but they too are receiving greatly increased appli cation to both laboratory and "real" problems. This is not to imply that luminescence spectroscopy, viewed in its broadest sense, is a static field. In fact, recent advances in instrumentation make it feasible to apply fluorescence to problem areas in which its use five years ago would have been unthinkable. Advances in hardware generate advances in application, and very significant progress is being recorded in the application of fluorescence (and its close relatives, phosphorescence and chemiluminescence) in the biochemical, biomedical, and environmental spheres.
Advances In Coal Spectroscopy

175,73€ + 10% EM CARTÃO

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 The past decade has witnessed major advances in our understanding of the chemical composition, structure, and reactivity of the complex organic-rich fossil matter known as "coal.
INGLÊS

Orange Butterfly

de Lily-Anne Longjohn

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INGLÊS

Change Your Thinking And Prosper: 365 Da - 365 Days Of Inspirational

de Marty Ayo Adebowale

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INGLÊS

Change Your Thinking And Prosper: 365 Da - 365 Days Of Inspirational

de Marty Ayo Adebowale

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INGLÊS

The Reality Of Life

de Paul M. Nkofo

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INGLÊS

The Reality Of Life

de Paul M. Nkofo

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