Scientific and Technical Aerospace Reports PDF Download

Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 372

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Author: A. I. Scott
Publisher: Elsevier
ISBN: 1483137201
Category : Science
Languages : en
Pages : 458

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Book Description
Interpretation of the Ultraviolet Spectra of Natural Products focuses on the ultraviolet spectrum of chromophores. The book first discusses single chromophores, including absorption due to electron lone pairs in saturated systems and absorption of olefins, alkynes, carbonyl compounds, and thiocarbonyl compounds. The text also takes a look at conjugated chromosomes, such as polyenes, enynes, and conjugated azomethines. The selection also evaluates C-aromatic compounds. Topics include benzenoid and hydrocarbons; phenols and their ethers; styrenes and stilbenes; aromatic carbonyl compounds; and nitro compounds. The text also discusses O- and S- heteroaromatic compounds and N-heteroaromatic compounds. The book highlights the applications of spectrophotometry to the analysis of natural products. Topics include formation of derivatives having absorbing chromophores; reactions leading to changes in absorption of added reagents; and analyses involving transformation to products suitable for spectrophotometry. The text is a good reference for readers wanting to explore chromophores.

Author: A. I. Scott
Publisher:
ISBN: 9780080136158
Category :
Languages : en
Pages :

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Interpretation of the Ultraviolet Spectra of Natural Products ...

Author: Alastair Ian Scott
Publisher:
ISBN:
Category :
Languages : en
Pages : 443

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Author: Olivier Thomas
Publisher: Elsevier
ISBN: 0080489842
Category : Science
Languages : en
Pages : 373

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Book Description
UV-Visible Spectrophotometry of Water and Wastewater is the first book dedicated to the use of UV spectrophotometry for water and wastewater quality monitoring. Using practical examples the reader is shown how this technique can be a source of new methods of characterization and measurement. Easy and fast to run, this simple and robust analytical technique must be considered as one of the best ways to obtain a quantitative estimation of specific or aggregate parameters (eg. Nitrate, TOC), and simultaneously qualitative information on the global composition of water and its variation.* First electronic library of UV-spectra providing data readily available for researchers and users* Provides a theoretical basis for further research in the field of spectra exploitation* Contains helpful practical applications

Author: Koji Nakanishi
Publisher: Academic Press
ISBN: 1483218864
Category : Science
Languages : en
Pages : 573

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Book Description
Natural Products Chemistry, Volume 1 covers the introductory survey, history, structure, synthesis, reactions, and biosynthesis of natural products. The book discusses the classification of natural products; physico-chemical data on natural products; and the mono- and sesquiterpenes. The text also describes the structure and biosynthesis of sester-, tri- and higher terpenoids, as well as of the steroids. Chemists, biochemists, and microbiologists will find the book invaluable.

Author: Sujata V. Bhat
Publisher: Springer Science & Business Media
ISBN: 9783540406693
Category : Science
Languages : en
Pages : 886

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Book Description
During the last few decades, research into natural products has advanced tremendously thanks to contributions from the fields of chemistry, life sciences, food science and material sciences. Comparisons of natural products from microorganisms, lower eukaryotes, animals, higher plants and marine organisms are now well documented. This book provides an easy-to-read overview of natural products. It includes twelve chapters covering most of the aspects of natural products chemistry. Each chapter covers general introduction, nomenclature, occurrence, isolation, detection, structure elucidation both by degradation and spectroscopic techniques, biosynthesis, synthesis, biological activity and commercial applications, if any, of the compounds mentioned in each topic. Therefore it will be useful for students, other researchers and industry. The introduction to each chapter is brief and attempts only to supply general knowledge in the particular field. Furthermore, at the end of each chapter there is a list of recommended books for additional study and a list of relevant questions for practice.

Author: B.J. Clark
Publisher: Springer Science & Business Media
ISBN: 041240530X
Category : Science
Languages : en
Pages : 162

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Book Description
This book is intended as an introductory text. It starts at the very fundamentals of the interaction of light and matter and progresses through the laws of light absorption, instrumentation and standards to the newer chemometric techniques. Other chapters cover colour, structural aspects of UV spectroscopy, detection in high performace liquid chromatography and flourescence.

Author: S. Gorog
Publisher: CRC Press
ISBN: 1351094327
Category : Science
Languages : en
Pages : 462

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Book Description
This book provides an overview of the state of the art in pharmaceutical applications of UV-VIS spectroscopy. This book presents the fundamentals for the beginner and, for the expert, discusses both qualitative and quantitative analysis problems. Several chapters focus on the determination of drugs in various matrices, the coupling of chromatographic and spectrophotometric methods, and the problems associated with the use of chemical reactions prior to spectrophotometric measurements. The final chapter provides a survey of the spectrophotometric determination of the main families of drugs, emphasizing the achievements of the last decade.

Author: United States. Environmental Protection Agency. Library Systems Branch
Publisher:
ISBN:
Category : Environmental protection
Languages : en
Pages : 702

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