Georg Schwedt ladt Sie ein, ihn auf seiner abwechslungsreichen Reise durch ausgewahlte naturwissenschaftlich-technische Museen quer durch Deutschland zu begleiten. Die Stationen seiner spannenden Reise sind: ? das Bergbaumuseum Weltkulturerbe Rammelsberg Goslar, ? das Deutsche Erdolmuseum Wietze, ? das Deutsche Salzmuseum Luneburg, ? das Deutsche Apothekenmuseum Heidelberg, ? das Landesmuseum fur Technik und Arbeit Mannheim, ? das Museum fur Brotkultur Ulm und ? das Fuhlrott-Museum & Forschungsinstitut in Wuppertal. In bewahrter Manier kombiniert Georg Schwedt spannende Chemieexperimente mit interessanten Hintergrundinformationen zu den Museen und ihren vielfaltigen Themenschwerpunkten. Lassen Sie sich einfangen von der Faszination, wie man mit einfachen Hilfsmitteln Chemieexperimente – ob im Museum, in der Schule oder zu Hause – nachvollziehen kann. Wie kann beispielweise aus dem Grundstoff Erdol ein Arzneimittel hergestellt werden? Wie entsteht lockeres Brot aus den Grundzutaten Mehl, Backtriebmittel und Wasser? Und vielleicht konnen die Experimente Sie so fesseln, dass Sie als nachste Urlaubsreise eine Museumstour planen, um die vorgestellten Museen einmal in Natura kennen zu lernen. Oder Sie nutzen den nachsten anstehenden Schulausflug, um den falschlich als langweilig verponten Museumsbesuch bei Jugendlichen und Schulern zu einem attraktivem Erlebnis zu machen. Dieses Buch ist fur alle Kenner der anderen «Schwedt Experimentierbucher», fur naturwissenschaftlich interessierte Kulturhistoriker, fur kulturhistorisch interessierte Naturwissenschaftler und naturlich fur alle, die einfach gerne ins Museum gehen und dort mehr wollen als nur Exponate ansehen.
This is the first book to describe the synthesis and characterization of the materials used in polymer-supported synthesis. The authors cover not only the classical polymers and their use in homogeneous, heterogeneous and micellar catalysis, but also such new developments as «enzyme-labile linkers», illustrating how to simplify the purification process and avoid waste. The result is a wealth of useful information – for beginners and experts alike – in one handy reference, removing the need for difficult and time-consuming research among the literature.
In most cases, every chemist must deal with solvent effects, whether voluntarily or otherwise. Since its publication, this has been the standard reference on all topics related to solvents and solvent effects in organic chemistry. Christian Reichardt provides reliable information on the subject, allowing chemists to understand and effectively use these phenomena. ? 3rd updated and enlarged edition of a classic . 35% more contents ? excellent, proven concept ? includes current developments, such as ionic liquids ? indispensable in research and industry From the reviews of the second edition: «…This is an immensely useful book, and the source that I would turn to first when seeking virtually any information about solvent effects.» – Organometallics
This book covers all aspects of bioavailability, as related to environmental contaminants. After a discussion of the definition of bioavailability and its context, focus is placed on the role of risk assessment and bioavailability. Methods of analysis are then discussed including a range of atomic spectroscopic and electrochemical techniques for metal analysis and chromatographic approaches for persistent organic pollutants (POPs). The occurrence, properties and eco-toxicity of POPs and metals in the soil/sediment environment are discussed. Particular emphasis is placed on the uptake of POPs and metals by plants (phytoextraction). Examples of POPs and metals in the environment are reviewed. Methods to assess the bioavailability of POPs and metals in the environment are discussed. The particular approaches considered are: non-exhaustive extraction techniques single extraction techniques sequential extraction techniques use of cyclodextrin and surfactants in-vitro gastrointestinal methods including physiological-based extraction test the use of bioasssays including earthworms. Finally, selected case studies highlight the importance of determining the bioavailability of POPs and metals.
This book furthers readers’ understanding of the amazing features of six-membered transition states in stereoselective organic reactions. Comprehensive and logically organized, it covers reactions classified in four categories: [3,3]-sigmatropic rearrangements, aldol reactions, metal allylation reactions, and stereoselective reductions. There is a thorough discussion of each reaction category, along with computational studies that support a proposal of a six-membered state. The book assists professors, researchers, and students in proposing reasonable transition states for the description of newly discovered stereoselective reactions.
The Chemistry of Heterocyclic Compounds, since its inception, has been recognized as a cornerstone of heterocyclic chemistry. Each volume attempts to discuss all aspects – properties, synthesis, reactions, physiological and industrial significance – of a specific ring system. To keep the series up-to-date, supplementary volumes covering the recent literature on each individual ring system have been published. Many ring systems (such as pyridines and oxazoles) are treated in distinct books, each consisting of separate volumes or parts dealing with different individual topics. With all authors are recognized authorities, the Chemistry of Heterocyclic Chemistry is considered worldwide as the indispensable resource for organic, bioorganic, and medicinal chemists.
This fourth edition of the classic guide for every user of gas chromatographic instrumentation is now updated to include such new topics as fast GC using narrow, short columns, electronic pressure control, and basic aspects of quantitative gas chromatography. The author shares his many years of experience in technical support for gas chromatography users, addressing the most common problems, questions and misconceptions in capillary gas chromatography. He structures and presents the material in a concise and practical manner, suitable even for the most inexperienced user without any detailed knowledge of chemistry or chromatography. For lab technicians in chemistry, analytical, food, medicinal and environmental chemists, pharmaceutists.
The first edition of Inductively Coupled Plasma Spectrometry and its Applications was written as a handbook for users who wanted a better understanding of the theory augmented by a practical insight of how best to approach a range of applications, and to provide a useful starting point for users trying an approach or technique new to them. These objectives have been retained in the second edition but a slight shift in emphasis gives the volume an overall perspective that is more forward looking. Structured into 11 chapters, the current edition is a thorough revision of the original, covering the principles of inductively coupled plasmas, instrumentation, methodology and applications within environmental analysis, earth science, food science and clinical medicine. Each chapter, written by internationally recognised leaders in their specific subject areas, provides enough detail to be useful to both the new and experienced users. Full account is taken of recent developments, such as high resolution instruments, novel detection systems and electrospray techniques. Written for all analytical scientists but particularly those involved in atomic spectroscopy and in environmental, geochemical, clinical or food analysis, this timely and informative book will be an essential reference in their use of inductively coupled plasmas to achieve their own scientific goals.
This book gives a comprehensive overview of the basis and the current applications of LC-NMR and related techniques. It deals with the practical aspects of the hardware and software set-up for a successful performance of on-line coupling experiments. It covers the solution of real-word problems from the fields of biomedical, pharmaceutical and environmental studies as well as the analysis of natural products and polymeric compounds. Thus guidelines for an efficient application of the powerful hyphenated technique LC-NMR in combination with LC-MS are presented. Besides LC-NMR, important techniques such as the on-line coupling of gel permeation chromatography and supercritical fluid chromatography, together with 1H NMR spectroscopy, are described in detail. Fascinating further aspects, such as the application of capillary separation techniques either in the single or parallel detection mode, together with the possibilities of direct 13C monitoring of chromatographic events, are also discussed. Key features include: * Up-to-date information on the theoretical and experimental methodology * Coverage of applications in biomedical, pharmaceutical and natural product analysis, as well as environmental polymer and related hyphenated techniques * Information appropriate for researchers in organic, pharmaceutical and medical chemistry Overall, this book is a requirement for all researchers and staff members dealing with structure elucidation problems in separation science.
Nitrification and Denitrification in the Activated Sludge Process, the first in a series on the microbiology of wastewater treatment, comprises the critical topics of cost-effective operation, permit compliance, process control, and troubleshooting in wastewater treatment plants. Avoiding the technical jargon, chemical equations, and kinetics that typically accompany such texts, Nitrification and Denitrification in the Activated Sludge Process directly addresses plant operators and technicians, providing necessary information for understanding the microbiology and biological conditions that occur in the treatment process. Of special interest to wastewater treatment plant operators are the bacteria that degrade nitrogenous wastes–the nitrifying bacteria–and the bacteria that degrade carbonaceous wastes–the cBOD-removing bacteria. Both groups of bacteria need to be routinely monitored and operational conditions favorably adjusted to ensure desired nitrification. Each chapter in this groundbreaking study offers a better understanding of the importance of nitrification and denitrification and the bacteria involved in these crucial processes. Chapters include: Organotrophs The Wastewater Nitrogen Cycle Nitrite Ion Accumulation Dissolved Oxygen Denitrifying Bacteria Gaseous End Products Free Molecular Oxygen The Occurrence of Denitrification