Author: Chang HeiPublisher:
ISBN:
Category :
Languages : en
Pages : 120
Book Description
Spectrophotometric Analysis of 3-methylindole (skatole) by Iron (III) Oxidation
Author: Chang HeiSpectrophotometric Determination of Iron(II) and Iron(III) with O-Phenanthroline 3 Dimensional
Author: Mohammed OtayfahPublisher:
ISBN:
Category : Iron
Languages : en
Pages : 0
Book Description
Aquatic chemists and by extension the public sector have a fundamental methodology through which they can determine serious metal concentrations in liquid. This thesis discusses the use of hydroxylamine coordination compounds followed by the complexation with the ligand; one and 10-phenanthroline as the technique for the determination of iron concentration in solutions. Technique used is spectrophotometry. From the analysis, it was established that iron(II) and iron(lll) demonstrate different properties when reacted. In this regard, the spectrophotometric analysis conducted was a success in identifying and differentiating between the two solutions of iron with different oxidation states --
Indole Ring Synthesis
Author: Gordon W. GribblePublisher: John Wiley & Sons
ISBN: 0470512180
Category : Science
Languages : en
Pages : 704
Book Description
Of the myriad of heterocycles known to man, the indole ring stands foremost for its remarkably versatile chemistry, its enormous range of biological activities, and its ubiquity in the terrestrial and marine environments. The indole ring continues to be discovered in natural products and to be employed in man-made pharmaceuticals and other materials. Given the enormous resurgence in indole ring synthesis over the past decade — highlighted by the power of transition metal catalysis — this authoritative guide addresses the need for a comprehensive presentation of the myriad of methods for constructing the indole ring, from the ancient to the modern, and from the obscure to the well-known. Following presentation of the classic indole ring syntheses and many newer methods, coverage continues with indole ring syntheses via pyrroles, indolines, oxindoles, isatins, radical and photochemical reactions, aryne cycloadditions. This extensive volume concludes with the modern transition metal–catalyzed indole ring syntheses that utilize copper, palladium, rhodium, gold, ruthenium, platinum, and other metals to fashion the indole ring Indole Ring Synthesis is a comprehensive, authoritative and up-to-date guide to the synthesis of this important heterocycle for organic chemists, pharmaceutical researchers and those interested in the chemistry of natural products.
Air Quality Guidelines
Author: World Health OrganizationPublisher: World Health Organization
ISBN: 9289021926
Category : Medical
Languages : en
Pages : 497
Book Description
This book presents revised guideline values for the four most common air pollutants - particulate matter, ozone, nitrogen dioxide and sulfur dioxide - based on a recent review of the accumulated scientific evidence. The rationale for selection of each guideline value is supported by a synthesis of information emerging from research on the health effects of each pollutant. As a result, these guidelines now also apply globally. They can be read in conjunction with Air quality guidelines for Europe, 2nd edition, which is still the authority on guideline values for all other air pollutants. As well as revised guideline values, this book makes a brief yet comprehensive review of the issues affecting the application of the guidelines in risk assessment and policy development. Further, it summarizes information on: . pollution sources and levels in various parts of the world, . population exposure and characteristics affecting sensitivity to pollution, . methods for quantifying the health burden of air pollution, and . the use of guidelines in developing air quality standards and other policy tools. Finally, the special case of indoor air pollution is explored. Prepared by a large team of renowned international experts who considered conditions in various parts of the globe, these guidelines are applicable throughout the world. They provide reliable guidance for policy-makers everywhere when considering the various options for air quality management.
Radical SAM Enzymes
Author: Publisher: Academic Press
ISBN: 9780128127940
Category : Science
Languages : en
Pages : 0
Book Description
Radical SAM Enzymes, Volume 606, the latest release in the Methods in Enzymology series, highlights new advances in the field, with this new volume presenting interesting chapters on the Characterization of the glycyl radical enzyme choline trimethylamine-lyase and its radical S-adenosylmethionine activating enzyme, Diphathimide biosynthesis, Radical SAM glycyl radical activating enzymes, Radical SAM enzyme BioB in the biosynthesis of biotin, Biogenesis of the PQQ cofactor, Role of MoaAC in the biogenesis of the molybdenum cofactor, Biosynthesis of the nitrogenase cofactor, Bioinformatics of the radical SAM superfamily, The involvement of SAM radical enzymes in the biosynthesis of methanogenic coenzymes, methanopterin and coenzyme F420, and more.
Formation and Significance of N-chloro Compounds in Water Supplies
Author: Odours in Wastewater Treatment
Author: Richard M. StuetzPublisher: IWA Publishing
ISBN: 9781900222464
Category : Science
Languages : en
Pages : 468
Book Description
Wastewater treatment works have the potential to generate unpleasant odours, which can results in annoyance and consequently have a detrimental effect on a local population. As a result 'odour control and prevention' has become an important consideration both in the management of existing facilities and in the design and gaining of planning consent for new works. Odours in Wastewater Treatment provides readers with a detailed discussion on the basic principles involved in the formation of volatile compounds in wastewater treatment. Accounts are given of recent developments in the sampling and measurement of odours, practical examples in the prediction and dispersion of odorous emissions are offered and an overview of the technologies currently used to contain and treat odorous compounds presented. Contents Introduction Odours associated with wastewater treatment Odour sampling and measurement Assessment and prediction of nuisance odours Odour control and treatment
Organic Contaminants in Riverine and Groundwater Systems
Author: Jan SchwarzbauerPublisher: Springer Science & Business Media
ISBN:
Category : Nature
Languages : en
Pages : 488
Book Description
This book reviews a selection of organic-geochemical investigations, dealing with the characterization and environmental behaviour of organic contaminations of German river and groundwater systems. Topics include comprehensive non-target screening as well as isotope analysis of contaminants in water and sediments, detailed characterisation of bound residues, recording riverine pollution histories and an extensive application of the anthropogenic marker approach.
Inventing Reactions
Author: Lukas J. GooßenPublisher: Springer
ISBN: 3642342868
Category : Science
Languages : en
Pages : 345
Book Description
Barry Trost: Transition metal catalyzed allylic alkylation.- Jeffrey W. Bode: Reinventing Amide Bond Formation.- Naoto Chatani and Mamoru Tobisu: Catalytic Transformations Involving the Cleavage of C-OMe Bonds.- Gregory L. Beutner and Scott E. Denmark: The Interplay of Invention, Observation and Discovery in the Development of Lewis Base Activation of Lewis Acids for Catalytic Enantioselective Synthesis.- David R. Stuart and Keith Fagnou: The Discovery and Development of a Palladium(II)-Catalyzed Oxidative Cross-Coupling of Two Unactivated Arenes.- Lukas Gooßen and Käthe Gooßen: Decarboxylative Cross-Coupling Reactions.- A. Stephen K. Hashmi: Gold-Catalyzed Organic Reactions.- Ben List: Developing Catalytic Asymmetric Acetalizations.- Steven M. Bischof, Brian G. Hashiguchi, Michael M. Konnick, and Roy A. Periana: The De NovoDesign of CH Bond Hydroxylation Catalysts.- Benoit Cardinal-David, Karl A. Scheidt: Carbene Catalysis: Beyond the Benzoin and Stetter Reactions.- Kenso Soai and Tsuneomi Kawasaki: Asymmetric autocatalysis of pyrimidyl alkanol.- Douglas C. Behenna and Brian M. Stoltz: Natural Products as Inspiration for Reaction Development: Catalytic Enantioselective Decarboxylative Reactions of Prochiral Enolate Equivalents. Hisashi Yamamoto: Acid Catalysis in Organic Synthesis.
Fermented Beverage Production
Author: Andrew G.H. LeaPublisher: Springer Science & Business Media
ISBN: 1461501873
Category : Technology & Engineering
Languages : en
Pages : 438
Book Description
Fermented Beverage Production, Second Edition is an essential resource for any company producing or selling fermented alcoholic beverages. In addition it would be of value to anyone who needs a contemporary introduction to the science and technology of alcoholic beverages. This authoritative volume provides an up-to-date, practical overview of fermented beverage production, focusing on concepts and processes pertinent to all fermented alcoholic beverages, as well as those specific to a variety of individual beverages. The second edition features three new chapters on sparkling wines, rums, and Latin American beverages such as tequila, as well as thorough updating of information on new technologies and current scientific references.