Kategoria BISAC: Science >> Chemistry - Analytic

Techniques of solid state nuclear magnetic resonance (NMR) spectroscopy are constantly being extended to a more diverse range of materials, pressing into service an ever-expanding range of nuclides including some previously considered too intractable to provide usable results. At the same time, new developments in both hardware and software are being introduced and refined. This book covers the most important of these new developments.

With sections addressed to non-specialist researchers (providing accessible answers to the most common questions about the theory and practice of NMR...

Fourier Transform Spectrometry is of immediate use to those who use Fourier transform spectrometers in their research, or are considering their use. The authors' presentations enable readers to obtain a clear understanding of FTS, which is crucial to their studies and research.

Due to the increasing complexity and commercialization of instrumentation, achieving optimum performance in research applications and automated usage can be challenging. For example, a thorough understanding of the instrument can dramatically affect the outcome of the experiment and the generation of...

Nonlinear chromatography is a field that borders both chemical engineering and physical chemistry. In turn, the theory of nonlinear chromatography is the foundation of preparative chromatography, a separation process that has lately become of considerable interest in the pharmaceutical industry. Only chromatography is sufficiently flexible and powerful to satisfy the practical requirements encountered in most difficult separations of pharmaceuticals and pharmaceutical intermediates.

Since "nonlinear" behaviour is strictly a mathematical concept, it is difficult to leave mathematics...

Isoelectric focusing (IEF) is a high-resolution, stand-alone technique that can be used as an analytical method or tool for protein purification. The only current book on the market, the Handbook of Isoelectric Focusing and Proteomics is the ideal 'one-stop' source for germane information in this discipline. This highly practical book also contains chapters on alternative methods that may pave the way in the search for efficient techniques for fractionating and purifying proteins. Complete with the history of IEF focusing to authors' insights and practical tips, this book is a must...

Nuclear Magnetic Resonance Spectroscopy, Second Edition focuses on two-dimensional nuclear magnetic resonance (NMR) spectroscopy, high resolution NMR of solids, water suppression, multiple quantum spectroscopy, and NMR imaging.

The selection first takes a look at the fundamental principles and experimental methods. Discussions focus on the NMR phenomenon, dipolar broadening and spin-spin relaxation, nuclear electric quadrupole relaxation, saturation, magnetic shielding and chemical shift, magnetic field, transitions between the nuclear energy levels, and resolution and sensitivity...

Gas chromatography remains the world's most widely used analytical technique, yet the expertise of a large proportion of chromatographers lies in other fields. Many users have little real knowledge of the variablesin the chromatographic process, the interaction between those variables, how they are best controlled, how the quality of their analytical results could be improved, and how analysis times can be shortened to facilitate the generation of a greater numberof more reliable results on the same equipment. An analyst with a more comprehensive understanding of chromatographic principles...

One of the greatest challenges facing chemists and chemical educators today is conveying the central importance and relevance of chemistry to students and society at large. The new edition of Chemistry Connections highlights the fundamental role of chemical principles in governing our everyday experiences and observations.

Introductory chemistry students and educators as well as laypersons with an inquisitiveness about the world around them will find the book an informative introduction to the context of chemistry in their lives. The book is written in a lively question-and-answer...

This book is the first laboratory manual to bring together basic procedures for measurement of stable and radioactive isotopes of nitrogen, with specific applications to plant, soil, and aquatic biology. This bench-top reference gives practical coverage of mass and emission spectrometry, nitrogen fixation, nitrification, and identification, organic nitrogen, and the radioactive isotope ^13N. Methods are described so that researchers can adapt them, without the aid of outside references, to virtually any task they may encounter in investigations of nitrogen transformation processes....

Statistics in Spectroscopy, Second Edition, is an expanded and updated version of the original title. The aim of the book is to bridge the gap between the average chemist/spectroscopist and the study of statistics.

The book introduces the novice reader to the ideas and concepts of statistics and uses spectroscopic examples to show how these concepts are applied. Several key statistical concepts are introduced through the use of computer programs.

Serves as a primer for all chemists who

Nuclear magnetic resonance (NMR) is an analytical tool used by chemists and physicists to study the structure and dynamics of molecules. In recent years, no other technique has grown to such importance as NMR spectroscopy. It is used in all branches of science where precise structural determination is required and where the nature of interactions and reactions in solution is being studied.

Annual Reports on NMR has established itself as a premier means for the specialist and nonspecialist alike to become familiar with new techniques and applications of NMR spectroscopy....

Though many separation processes are available for use in todays analytical laboratory, chromatographic methods are the most widely used. The applications of chromatography have grown explosively in the last four decades, owing to the development of new techniques and to the expanding need of scientists for better methods of separating complex mixtures. With its comprehensive, unified approach, this book will greatly assist the novice in need of a reference to chromatographic techniques, as well as the specialist suddenly faced with the need to switch from one technique to another.

In the 1980s, capillary electrophoresis (CE) joined high-performance liquid chromatography (HPLC) as the most powerful separation technique available to analytical chemists and biochemists. Published research using CE grew from 48 papers in the year of commercial introduction (1988) to 1200 in 1997. While only a dozen major pharmaceutical and biotech companies have reduced CE to routine practice, the applications market is showing real or potential growth in key areas, particularly in the DNA marketplace for genomic mapping and forensic identification. For drug development involving small...

This text was developed from a course for physical chemistry and chemical physics students using cross-polarization (CP) magic angle spinning (MAS) NMR in their laboratory assignments. The book provides students with the details of the CP/MAS experiment as it is used to obtain rare-spin, high-resolution NMR spectra. The design of the CP/MAS experiments and the interpretation of spectra and relaxation measurements require an understanding of the interplay of several fundamental physical interactions not normally encountered in solution NMR. The student can observe the way interacting spin...

Chemical data analysis, with aspects of metrology in chemistry and chemometrics, is an evolving discipline where new and better ways of doing things are constantly being developed. This book makes data analysis simple by demystifying the language and whenever possible giving unambiguous ways of doing things.

Based on author D. Brynn Hibberts lectures on data analysis to undergraduates and graduate students, Data Analysis for Chemistry
covers topics including measurements, means and confidence intervals, hypothesis testing, analysis of variance, and calibration models. The end...

Chemical data analysis, with aspects of metrology in chemistry and chemometrics, is an evolving discipline where new and better ways of doing things are constantly being developed. This book makes data analysis simple by demystifying the language and whenever possible giving unambiguous ways of doing things.

Based on author D. Brynn Hibberts lectures on data analysis to undergraduates and graduate students, Data Analysis for Chemistry covers topics including measurements, means and confidence intervals, hypothesis testing, analysis of variance, and calibration models. The end result is a...

This introduction presents the physical chemistry and the unusual beha vior of supercritical fluids, while focusing on the basic principles. Topics include phase behavior, dynamic properties, transport propertie s, intermolecular forces, and fractionation.

Newly revised, this handy dictionary explains the many technical terms and bewildering acronyms encountered in the field of nuclear magnetic resonance imaging. In addition, the dictionary offers a helpful explanation of the theory and use of modern NMR methods, and a detailed description of two-dimensional techniques. sources for further reading.

This book describes the main methods of one- and two-dimensional high-resolution nuclear magnetic resonance spectroscopy in liquids within the quantum-mechanical formalism of the density matrix. In view of the increasing importance of NMR in chemistry and biochemistry, the work is particularly addressed to those scientists who do not have a working knowledge of quantum calculations. This knowledge is provided in the first part of the book through a description of quantum mechanics as applied to spin systems. This section is self-contained and limited to essentials. A final chapter is devoted...

Nuclear magnetic resonance techniques have advanced dramatically in recent years, and are now more powerful and more versatile than ever before. In order to exploit these techniques efficiently, chemists must have both an understanding of the techniques' theoretical bases and the ability to interpret the spectra accurately. This workbook presents worked examples and set problems that cover one- and two-dimensional NMR techniques as applied to organic and inorganic systems. Most of the problems are genuine research examples, and this second edition contains numerous new problems derived from...

Matrix isolation is a technique for trapping reactive species at very low temperatures and studying them spectroscopically. This unique introduction to the subject offers detailed practical advice on how to carry out matrix-isolation experiments. Topics discussed include: the strengths and limitations of matrix isolation; how to build a matrix-isolation laboratory from scratch, with full descriptions of all the necessary equipment; ancillary equipment for generating reactive species; various methods for forming low-temperature matrices; and matrix photochemistry with polarized light. The book...