Transform Techniques In Chemistry

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Transform Techniques In Chemistry

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Author : P. Griffiths
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-06

Transform Techniques In Chemistry written by P. Griffiths and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-06 with Science categories.

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.

Transform Techniques In Chemistry

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Author : Peter R. Griffiths
language : en
Publisher:
Release Date : 1978-08

Transform Techniques In Chemistry written by Peter R. Griffiths and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1978-08 with Fourier transform spectroscopy categories.

Fourier Hadamard And Hilbert Transforms In Chemistry

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Author : Alan Marshall
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-06-29

Fourier Hadamard And Hilbert Transforms In Chemistry written by Alan Marshall and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-06-29 with Science categories.

In virtually all types of experiments in which a response is analyzed as a function of frequency (e. g. , a spectrum), transform techniques can significantly improve data acquisition and/or data reduct ion. Research-level nuclear magnet ic resonance and infra-red spectra are already obtained almost exclusively by Fourier transform methods, because Fourier transform NMR and IR spectrometers have been commercially available since the late 1960·s. Similar transform techniques are equally valuable (but less well-known) for a wide range of other chemical applications for which commercial instruments are only now becoming available: for example, the first corrmercial Fourier transform mass spectrometer was introduced this year (1981) by Nicolet Instrument Corporation. The purpose of this volume is to acquaint practicing chemists with the basis, advantages, and applica of Fourier, Hadamard, and Hilbert transforms in chemistry. For tions almost all chapters, the author is the investigator who was the first to apply such methods in that field. The basis and advantages of transform techniques are described in Chapter 1. Many of these aspects were understood and first applied by infrared astronomers in the 1950·s, in order to improve the otherwise unacceptably poor signal-to-noise ratio of their spec tra. However, the computations required to reduce the data were painfully slow, and required a 1 arge computer.

Fourier Transform Techniques In Chemistry

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Author : Royal Society of Chemistry. Analytical Division
language : en
Publisher:
Release Date : 1988

Fourier Transform Techniques In Chemistry written by Royal Society of Chemistry. Analytical Division and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with categories.

Chemometrics

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Author : Foo-Tim Chau
language : en
Publisher: John Wiley & Sons
Release Date : 2004-04-23

Chemometrics written by Foo-Tim Chau and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-04-23 with Science categories.

Wavelet Transformations and Their Applications in Chemistry pioneers a new approach to classifying existing chemometric techniques for data analysis in one and two dimensions, using a practical applications approach to illustrating chemical examples and problems. Written in a simple, balanced, applications-based style, the book is geared to both theorists and non-mathematicians. This text emphasizes practical applications in chemistry. It employs straightforward language and examples to show the power of wavelet transforms without overwhelming mathematics, reviews other methods, and compares wavelets with other techniques that provide similar capabilities. It uses examples illustrated in MATLAB codes to assist chemists in developing applications, and includes access to a supplementary Web site providing code and data sets for work examples. Wavelet Transformations and Their Applications in Chemistry will prove essential to professionals and students working in analytical chemistry and process chemistry, as well as physical chemistry, spectroscopy, and statistics.

Shifting And Rearranging

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Author : Carsten Reinhardt
language : en
Publisher: Watson Publishing International
Release Date : 2006

Shifting And Rearranging written by Carsten Reinhardt and has been published by Watson Publishing International this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.

The rise of physical methods lies at the heart of the transformation of chemistry over the second half of the 20th century, says Rienhardt (history of science, U. of Regensburg, Germany). He analyzes a sample of individual research programs and strategies that illustrate this change. Only companies and people are indexed.

Physical Methods In Modern Chemical Analysis V3

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Author : Theodore Kuwana
language : en
Publisher: Elsevier
Release Date : 2012-12-02

Physical Methods In Modern Chemical Analysis V3 written by Theodore Kuwana and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-02 with Science categories.

Physical Methods in Modern Chemical Analysis, Volume 3 presents the fundamental principles, the instrumentation or necessary equipment, and applications of selected physical methodologies in chemical analysis. This volume contains chapters that discuss various topics on chemical analysis methods such as transform methods in chemistry; X-ray spectrometry; the principles of electrochemical measurements; and global optimization strategy for gas-chromatographic separations. The book will prove to be an excellent reference material for chemists, researchers, and students of chemistry.

Mathematical Techniques In Chemistry

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Author : Joseph B. Dence
language : en
Publisher:
Release Date : 1975

Mathematical Techniques In Chemistry written by Joseph B. Dence and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1975 with Science categories.

Algebra and elementary notions of functions; Diferentiation; Techniques of integration; Expansions in series; Differential equations; Matrices; Vectors; And tensors; Special functions.

Wavelets In Chemistry

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Author : Beata Walczak
language : en
Publisher: Elsevier
Release Date : 2000-05-10

Wavelets In Chemistry written by Beata Walczak and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-05-10 with Science categories.

Wavelets seem to be the most efficient tool in signal denoising and compression. They can be used in an unlimited number of applications in all fields of chemistry where the instrumental signals are the source of information about the studied chemical systems or phenomena, and in all cases where these signals have to be archived. The quality of the instrumental signals determines the quality of answer to the basic analytical questions: how many components are in the studied systems, what are these components like and what are their concentrations? Efficient compression of the signal sets can drastically speed up further processing such as data visualization, modelling (calibration and pattern recognition) and library search. Exploration of the possible applications of wavelets in analytical chemistry has just started and this book will significantly speed up the process. The first part, concentrating on theoretical aspects, is written in a tutorial-like manner, with simple numerical examples. For the reader's convenience, all basic terms are explained in detail and all unique properties of wavelets are pinpointed and compared with the other types of basis function. The second part presents applications of wavelets from many branches of chemistry which will stimulate chemists to further exploration of this exciting subject.

Fourier Transforms In Nmr Optical And Mass Spectrometry

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Author : A.G. Marshall
language : en
Publisher: Elsevier
Release Date : 2016-02-25

Fourier Transforms In Nmr Optical And Mass Spectrometry written by A.G. Marshall and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-02-25 with Science categories.

Written by spectroscopists for spectroscopists, here is a book which is not only a valuable handbook and reference work, but also an ideal teaching text for Fourier transform methods as they are applied in spectroscopy. It offers the first unified treatment of the three most popular types of FT/spectroscopy, with uniform notation and complete indexing of specialized terms. All mathematics is self-contained, and requires only a knowledge of simple calculus. The main emphasis is on pictures and physical analogs rather than detailed algebra. Instructive problems, presented at the end of each chapter, offer extensions of the basic treatment. Solutions are given or outlined for all problems. The book offers a wealth of practical information to spectroscopists. Non-ideal effects are treated in detail: noise (source- and detector-limited); non-linear response; limits to spectrometer performance based on finite detection period, finite data size, mis-phasing, etc. Common puzzles and paradoxes are explained: e.g. use of mathematically complex variables to represent physically real quantities; interpretation of negative frequency signals; on-resonance vs. off-resonance response; interpolation (when it helps and when it doesn't); ultimate accuracy of the data; differences between linearly- and circularly-polarized radiation; multiplex advantage or disadvantage, etc. Chapter 1 introduces the fundamental line shapes encountered in spectroscopy, from a simple classical mass-on-a-spring model. The Fourier transform relationship between the time-domain response to a sudden impulse and the steady-state frequency-domain response (absorption and dispersion spectra) to a continuous oscillation is established and illustrated. Chapters 2 and 3 summarize the basic mathematics (definitions, formulas, theorems, and examples) for continuous (analog) and discrete (digital) Fourier transforms, and their practical implications. Experimental aspects which are common to the signal (Chapter 4) and noise (Chapter 5) in all forms of Fourier transform spectrometry are followed by separate chapters for treatment of those features which are unique to FT/MS, FT/optical, FT/NMR, and other types of FT/spectroscopy. The list of references includes both historical and comprehensive reviews and monographs, along with articles describing several key developments. The appendices provide instant access to FT integrals and fast algorithms as well as a pictorial library of common Fourier transform function pairs. The comprehensive index is designed to enable the reader to locate particular key words, including those with more than one name.