Characterization And Structural Elucidation Of Oligosaccharides By Matrix Assisted Laser Desorption Ionization Fourier Transform Mass Spectrometry PDF Download

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Progress in the Chemistry of Organic Natural Products 100

Progress in the Chemistry of Organic Natural Products 100
Author: A. D. Kinghorn
Publisher: Springer
Total Pages: 602
Release: 2014-11-17
Genre: Science
ISBN: 3319052756

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The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, L. Zechmeister, have appeared under the Springer Imprint ever since the series' inauguration in 1938. It is therefore not really surprising to find out that the list of contributing authors, who were awarded a Nobel Prize, is quite long: Kurt Alder, Derek H.R. Barton, George Wells Beadle, Dorothy Crowfoot-Hodgkin, Otto Diels, Hans von Euler-Chelpin, Paul Karrer, Luis Federico Leloir, Linus Pauling, Vladimir Prelog, with Walter Norman Haworth and Adolf F.J. Butenandt serving as members of the editorial board. The volumes contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers. Each contribution is written by a recognized authority in his field and provides a comprehensive and up-to-date review of the topic in question. Addressed to biologists, technologists and chemists alike, the series can be used by the expert as a source of information and literature citations and by the non-expert as a means of orientation in a rapidly developing discipline.


Oligosaccharide Analysis Via Anion Attachment Using Negative Mode Electrospray (ES) and Matrix Assisted Laser Desorption/ionization (MALDI) Mass Spectrometry

Oligosaccharide Analysis Via Anion Attachment Using Negative Mode Electrospray (ES) and Matrix Assisted Laser Desorption/ionization (MALDI) Mass Spectrometry
Author: Yanjie Jiang
Publisher:
Total Pages:
Release: 2004
Genre:
ISBN:

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Eleven tested anions were able to form adducts with neutral oligosaccharides at low cone voltage in negative ion mode electrospray mass spectrometry. Among them, fluoride and acetate have the abilities to significantly enhance the absolute abundance of [M-H]- for neutral oliogosaccharides. The chloride adduct has the best stability among all the adduct species investigated. For the above three anions, CID of adduct species may be used for structural determination of neutral oligosaccharides. In the presence of F- and Ac-, simultaneous detection of acidic oligosaccharides and neutral oligosaccharides was achieved. The ratio of Cl- : non-Cl-containing product ions obtained in CID spectra of chloride adducts of disaccharides was used to differentiate anomeric configurations of disaccharides. Density functional theory (DFT) was employed to evaluate the optimized structures of chloride adducts of disaccharides. The formation and decomposition of chloride adducts with oligosaccharides of different acidities were investigated in MALDI mass spectrometry.


Cumulated Index Medicus

Cumulated Index Medicus
Author:
Publisher:
Total Pages: 1384
Release: 1991
Genre: Medicine
ISBN:

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Comprehensive Natural Products II

Comprehensive Natural Products II
Author:
Publisher: Elsevier
Total Pages: 7944
Release: 2010-03-05
Genre: Science
ISBN: 0080453821

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This work presents a definitive interpretation of the current status of and future trends in natural products—a dynamic field at the intersection of chemistry and biology concerned with isolation, identification, structure elucidation, and chemical characteristics of naturally occurring compounds such as pheromones, carbohydrates, nucleic acids, and enzymes. With more than 1,800 color figures, Comprehensive Natural Products II features 100% new material and complements rather than replaces the original work (©1999). Reviews the accumulated efforts of chemical and biological research to understand living organisms and their distinctive effects on health and medicine Stimulates new ideas among the established natural products research community—which includes chemists, biochemists, biologists, botanists, and pharmacologists Informs and inspires students and newcomers to the field with accessible content in a range of delivery formats Includes 100% new content, with more than 6,000 figures (1/3 of these in color) and 40,000 references to the primary literature, for a thorough examination of the field Highlights new research and innovations concerning living organisms and their distinctive role in our understanding and improvement of human health, genomics, ecology/environment, and more Adds to the rich body of work that is the first edition, which will be available for the first time in a convenient online format giving researchers complete access to authoritative Natural Products content