Download or read book Interpretation of the Ultraviolet Spectra of Natural Products written by A. I. Scott and published by Elsevier. This book was released on 2013-10-22 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book A Study of the Ultraviolet Absorption Spectra and Molecular Structures of Some Substituted Quinolines written by Wilbur H. Huber and published by . This book was released on 1948 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ultraviolet and Visible Absorption Spectra written by Herbert Hershenson and published by Elsevier. This book was released on 2012-12-02 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraviolet and Visible Absorption Spectra, Index for 1930-1954 is a reference volume listing of ultraviolet and visible absorption spectra in the literature. This book contains about 32,000 references to published absorption spectra in 27 important American and European journals and one book. The index is arranged according to the compounds whose spectra are given. The indexing arrangement is roughly similar to that used in Chemical Abstracts, although it has not been practical to conform to Chemical Abstracts nomenclature throughout. Wherever possible, all references for a particular compound have been listed under a single name, but there will be some instances where listings for the compound may be found under several different names. The rules used by Chemical Abstracts have been followed where practical, but some inconsistencies will be found. Researchers in the fields of organic, inorganic, and analytical chemistry will find this Index a great value.
Download or read book Ultraviolet and Visible Absorption Spectra 2e written by Herbert Hershenson and published by Elsevier. This book was released on 2012-12-02 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ultraviolet and Visible Absorption Spectra: Index for 1960-1963 aims to provide supplement with more than 25,000 references to spectra and their locations and listings that have been published from 1960 to 1963. The index entries are arranged in an alphabetical order, allowing for easy reference. Also indexed are the names of well-known chemistry journals published during 1960-1963, as well as their abbreviations. The monograph is recommended for chemists who would like to know more about the spectra of different compounds, as well as chemists who would like to be informed of different publications in the field within 1960 to 1963.
Download or read book Ultraviolet Spectra of Aromatic Compounds written by Robert A. Friedel and published by . This book was released on 1973 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Determination of Ultraviolet Absorption Spectra in Shock tube Experiments written by Nicolaas Catharinus Rol and published by . This book was released on 1964 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Introduction to Pharmaceutical Analytical Chemistry written by Stig Pedersen-Bjergaard and published by John Wiley & Sons. This book was released on 2019-04-29 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: Die umfassend überarbeitete 2. Auflage enthält ein neues Kapitel zur chemischen Analyse von Biopharmazeutika, in dem die Identifizierung, Reinheitsprüfung und die Analyse on Peptiden und proteinbasierten Formulierungen erläutert werden. Die neue Auflage bietet ebenfalls verbesserte farbige Abbildungen und Tabellen, eine gestraffte Kapitelstruktur und überarbeitete Inhalte, die das Fachgebiet klarer und verständlicher präsentieren. - Bietet eine Einführung in die grundlegenden Konzepte der pharmazeutischen analytischen Chemie und Statistik. - Untersucht systematisch pharmazeutische Anwendungen, die in anderen Lehrbüchern zu dem Fachgebiet fehlen. - Untersucht verschiedene Analysetechniken, die in der Regel in Pharmalaboren zur Anwendung kommen. - Präsentiert Fragestellungen aus der Praxis, aktuelle praktische Beispiele und detaillierte Illustrationen. - Die aktualisierten Inhalte entsprechen den aktuellen europäischen und US-amerikanischen Arzneibuchvorschriften und -richtlinien.
Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1957 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research of the National Bureau of Standards written by and published by . This book was released on 1957 with total page 868 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nuclear Science Abstracts written by and published by . This book was released on 1967-11 with total page 874 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chlorophylls written by Leo P. Vernon and published by Academic Press. This book was released on 2014-06-28 with total page 696 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Chlorophylls reviews developments in study of chlorophylls, and at the same time summarizes the state of knowledge in the more established areas of the physics, chemistry, and biology of chlorophylls. The book is organized into four sections. The first section deals with the chlorophylls as chemical entities, and treats their isolation, analysis, chemistry, and synthesis. The second concerns chlorophylls in real and colloidal solution and in the solid state in vitro, and includes the effects of aggregation on visible, infrared, and NMR spectral properties. The third section treats the biosynthesis, organization, and properties of chlorophylls in the plant and bacterial cell, and the fourth is concerned with the photochemical and photophysical behavior of chlorophylls in vitro and in vivo. It is hoped that this work will help those investigating selected aspects of chlorophyll to keep abreast of other methods and approaches, and will provide the interested scientist with a modern, conceptually organized treatment of the subject.
Download or read book Introduction to Soil Chemistry written by Alfred R. Conklin and published by John Wiley & Sons. This book was released on 2005-08-08 with total page 241 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to soil analysis for chemists and environmental scientists Soil-so essential to life on earth-is one of the most complicated of materials. A complex mixture of inorganic and organic solids, liquids, and gases, soil presents a challenging material for analysis, especially for researchers who are not specialists in soil chemistry. This clear, broadly applicable reference provides chemists and environmental scientists with the background they need to analyze soil, interpret their findings, and develop new analytical methods for soil. Introduction to Soil Chemistry will also be valuable to the soil scientist confronting soil analyses that appear to be incorrect or do not work. Introduction to Soil Chemistry: Analysis and Instrumentation investigates the most important soil characteristics that impact analysis and the procedures, chemicals, and equipment used to determine the composition and quantity of soil constituents. It also discusses factors that interfere with accurate soil analysis. Chapters examine such topics as: * Large features-horizons, peds, soil color, and soil naming * Microscopic to atomic orbital description of soil chemical characteristics * Soil components in combination * The biological and organic components in soil * The soil solution and soil air * Electrical measurements, titration, and extraction * Spectroscopy and chromatography * Speciation This book is enhanced by numerous examples within the text, which provide the reader with a practical understanding of various analytical procedures, along with the pitfalls and interferences that may be encountered. Bibliographies and additional resources appear at the end of each chapter.
Download or read book Phytochemical Techniques written by N. Raaman and published by New India Publishing. This book was released on 2006 with total page 332 pages. Available in PDF, EPUB and Kindle. Book excerpt: Phytochemicals are the individual chemicals from which the plants are made and plants are the key sources of raw material for both pharmaceutical and aromatic industries. the improved methods for higher yield of active compounds will be the major incentive in these industries. To help those who are involved in the isolation of compounds from plants, some of the essential phytochemical techniques are included in this book. The theoretical principles of various instruments, handling of samples and interpretation of spectra are given in detail. Adequate chemical formulas are included to support and explain various structures of compounds and techniques. The book will prove useful to students, researchers, professionals in the field of Plant Physiology and Pathology, Pharmaceutical and Chemical Engineering, Biotechnology, Medicinal and Aromatic Plants and Horticulture.
Download or read book Introduction to Flavonoids written by Bohm and published by CRC Press. This book was released on 1999-01-18 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Offering a wide ranging view of this important class of plant pigments, after a brief examination of the history & literature of flavonoids, this book explores structural variation of all subclasses of flavonoids, techniques for isolation, purification, & determination of structures, chemical syntheses, biosynthesis & genetics, patterns of distribution in the plant kingdom, & uses. Lastly, the functions of flavonoids in nature are investigated, as well as ways in which these compounds may have a more direct impact upon the human race. Contents: Introduction & Historical Perspective * Structural Variation * Occurrence & Distribution of Flavonoids * Extraction, Purification, & Identification of Flavonoids * Synthesis & Interconversions of Flavonoids * Biosynthesis & Genetics * Flavonoid Functions in Nature * Human Uses of Flavonoids
Download or read book BIOS Instant Notes in Inorganic Chemistry written by Tony Cox and published by Taylor & Francis. This book was released on 2004-03-01 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: Instant Notes in Inorganic Chemistry, second edition has been fully updated and new material added on developments in noble-gas chemistry and the synthesis, reactions and characterization of inorganic compounds. New chapters cover the classification of inorganic reaction types concentrating on those useful in synthesis; techniques used in characterizing compounds, including elemental analysis; spectroscopic methods (IR, NMR) and structure determination by X-ray crystallography; and the factors involved in choosing appropriate solvents for synthetic reactions. The new edition continues to provide concise coverage of inorganic chemistry at an undergraduate level, offering easy access to all important areas of inorganic chemistry in a format which is ideal for learning and rapid revision.
Download or read book Organic Analytical Chemistry written by Jag Mohan and published by Alpha Science Int'l Ltd.. This book was released on 2003 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rapid developments in analytical techniques and the use of modern reagents in organic synthesis during the last two decades have revolutionized the approach to organic structure determination. As advanced topics in organic analysis such as spectroscopic methods are being introduced, postgraduate students (majoring in organic chemistry) have been feeling handicapped by the non-availability of a book that could uncover various aspects of qualitative and quantitative organic analysis. This book is written primarily to stimulate the interest of students of organic chemistry and pharmaceutical sciences in organic analytical chemistry. Key features: Identification and characterization of organic compounds by classical methods Mechanism of various reactions involved in the detection of functional groups and their derivatization Functional groups interfering with a given test procedure Identification of organic compounds by spectral methods (IR, UV, NMR and Mass Spectrometry) Chemical analysis by other instrumental techniques-Atomic emission spectroscopy, Electron spin resonance spectroscopy, Atomic absorption spectroscopy, flnorimetry & Phosphorimetry, Flame photometry and X-ray methods General techniques for separation and purification including Gas Chromatography and HPLC Preparation of organic compounds based on important name reactions and pharmaceutical properties Mechanism of the reactions involved in the synthesis Simple analytical techniques and specific methods of quantitative elemental, functional groups and biochemical estimations Composite spectral problems Incorporating ample modern techniques of organic analysis, this book will be of great value to graduate & postgraduate students, teachers and researchers in the field of organic chemistry and pharmaceutical sciences.
Download or read book Introduction to high performance liquid chromatography written by R. Hamilton and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 256 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the first edition of this book the major advances have been in column packings, where over ninety per cent of separations are now performed using chemically bonded microparticulate packings, and in instrumentation. The use of microprocessor control has brought about a rationalization of mobile phase delivery systems and in detectors, the introduction of electrochemical and spectrophotometric detection other than in the ultra-violet region, has widened the field of applications and the sensitivity of the technique. The use of ion pair chromatography has increased at the expense of ion-exchange and this together with the improvements in detectors has greatly increased the appli cation of the technique in the biomedical field. These advances are described together with the established methods to enable the beginner to carry out a satisfactory separation and to gain the experience necessary for the full exploitation of the technique. R. J. Hamilton P. A. Sewell Liverpool,1981 1 Introduction to high performance liquid chromatography 1. 1 Introduction Chromatography in its many forms is widely used as a separative and an analytical technique. Gas chromatography since its introduction by James and Martin [1] has been pre-eminent in the field. Uquid chromatography in the of paper, thin-layer, ion-exchange, and exclusion (gel permeation and gel form filtration) chromatography had not been able to achieve the same success, mainly because of the poor efficiences and the long analysis times arising from the low mobile phase flow rates.
