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This book offers a comprehensive perspective of herbal medicine phytochemistry and explores the application of plant extracts as bioactive compounds in disease prevention and treatment in modern or traditional medicine. The book starts with an introduction to the history and value of herbal medicine, followed by 3 parts covering the main phytochemical components and metabolites in herbal medicine, different uses and practices in herbal medicine, including a region-wise analysis of methods and practices and an overview of regulations and policies for herbal medicinal practitioners, and the advances and challenges in quality assessment of herbal medicine. Plants generally have the tendency to bioaccumulate trace metals from the environment and they are easily contaminated by microorganisms from water sources and poor hygiene practices of the herbalist. Quality assessment and assurance is, thus, a pertinent challenge in herbal medicine practice (i.e., in remedy formulation and application), and this book offers an authoritative perspective on this topic, covering aspects such as quality control strategies, preparation techniques, chemical quantification in phytomedicine, and the efficacy and safety of herbal remedies. Moreover, in this book, readers will find valuable insights into the latest trends and developments in the field, and a critical review of the application of medicinal plants to treat cardiovascular, digestive, respiratory neurological and reproductive diseases. Particular attention is given to the advances and trends in the field, and readers will learn about the latest biotechnological approaches, the use of nanotechnology in herbal medicine, metabolomic analysis of medicinal plants, big data application in herbal medicine, and the value of herbal medicine towards sustainability. Given its breadth, this book is aimed at researchers, academics, practitioners and professionals working in the fields of natural, life, health, clinical, and biomedical sciences, and interested in herbal remedies, pharmacology, pharmacognosy, human nutrition and dietetics, plant biology, and biotechnology/microbiology.

This book presents a major research program investigating signal transduction processes utilizing small molecule compound probes. The program was launched by the National Natural Science Foundation of China during the 11th Five-Year Plan period, which was started in October 2008 and concluded at the end of 2016. It first summarizes the overall scientific objectives and the current situation of signal transduction research in China and the international frontier. Based on the new method and technologies achieved in small molecule compound probes, this book illustrates key molecular events in signal transduction processes in living systems and reveals the regulation of signal transduction. This helps to explore new ideas and strategies for the diagnosis and prevention of serious diseases. In addition, via interdisciplinary cooperation of biology and chemistry, this book solves some key scientific problems in biology and promotes recent developments in these fields. These areas includethe generation of small molecule compound probes for studying signal transduction and development of detecting methods for gathering information of biomacromolecule activities. Given its scope, the book is of interest to researchers who work in organic chemistry, natural product chemistry, medicinal chemistry, analytical chemistry and physical chemistry. It also promotes the multidisciplinary collaboration among chemistry, medicine, materials science and biology

This book provides a comprehensive overview of piezoelectric sensor devices and instrumentation and their use for chemical and biochemical analysis. Sensors relying on established transducers, such as the quartz crystal microbalance (QCM) and the surface acoustic wave resonator (SAW) are covered, and novel devices like surface transverse wave (STW) resonators, film bulk acoustic resonators (FBAR) as well as non-piezoelectric devices with mass-sensitive properties are presented. As their name implies, such devices respond directly to mass changes on their surfaces and thus address the most fundamental quality of any analytes. First, the book presents the fundamentals of new measuring strategies with these devices. Then, it introduces a variety of chemo- and biosensing application scenarios of these devices. In addition, the book covers both the state-of-the-art of academic research and prospects concerning the commercialization of these sensors. Given its scope, the book is of interest to academics, specialists in industry, and advanced students in the areas of analytical chemistry, rapid analysis, and sensor technology, giving them the unique possibility to familiarize themselves with this chemical sensing strategy. Readers will benefit from the coverage of both cutting-edge research results and applications that help bridge the gap between academia and industry.

This book deals with analytical techniques and methods applied in several sectors of technology and industry and serves as a concise and up-to-date reference for the practical application of analytical chemistry. Divided into 10 chapters, the book starts with an introduction to the fundamentals of analytical chemistry, followed by a review of modern analytical technologies and their application in different industrial sectors and activities such as agrochemicals and pharmaceuticals, ores and mining, polymers, biotechnology, and oil & gas. Particular attention is given to industrial environmental issues, where the author discusses the advanced analytical techniques used to provide quantitative information about pollutants in aqueous and gaseous effluents and their carbon footprint. The book finishes with a chapter summarizing the main remarks and conclusions on advanced analytical techniques used in different industrial sectors, as well as on topics of sustainability, and instrumental analysis. In this book, readers will find valuable insights, including real-life examples, of how classical and instrumental techniques can be used by industry, to help professionals in the quality control of raw materials, products and processes, in the assessment of the formulation contamination, environmental pollution and in the evaluation of sustainability, among others. Given its breadth, the book appeals to professionals (mainly chemists, biochemists, and engineers), researchers, professors, and graduate students.

this book, the validation of bioanalytical methods is described. In the quality control of biological medicinal products, bioanalytical methods are frequently used to check important properties such as the content or possible impurities. The methods used must provide trustworthy results so that no false conclusions are drawn when evaluating the results. The trustworthiness is ensured by validation. The validation of bioanalytical methods is illustrated by means of some examples.

This book reviews the development of cell-free production platforms and offers an authoritative perspective of the latest advances and methodologies in cell-free production systems. Readers will discover the biomanufacturing potential of in vitro biotransformation (ivBT) employing purified cascade multi-enzymes, the development of hydrogel-based multi-enzymatic systems for biosynthesis, and novel insights into the optimization of biocatalytic processes. Additionally, the book explores the cell-free production and regeneration of cofactors, shedding light on strategies to enhance the efficiency and sustainability of cellular processes. In this book, particular attention is given to the progress of cell-free in vitro evolution techniques for optimizing enzyme performance, and the book also presents the integration of rapid and finely-tuned expression systems for deployable sensing applications, revolutionizing the field of biosensing. The synthesis and electrophysiological analysis of multipass voltage-gated ion channels tethered in microsomal membranes are explored, providing a deep understanding of cellular function at the molecular level. Lastly, the book covers compartmentalized cell-free expression systems for building synthetic cells, showcasing the potential for constructing artificial cellular systems with unique functionalities. Given its breadth, this book appeals to academics, researchers, and professionals interested in the forefront of biotechnology, and together with the companion volume “Cell-free Macromolecular Synthesis”, both books highlight the research progresses on the basic and applied research of cell-free production systems in the last few years, being invaluable resources in the field.Chapter “Cell-free synthesis and electrophysiological analysis of multipass voltage-gated ion channels tethered in microsomal membranes” is available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.

This book elucidates the peculiar phenomenon of entropy/enthalpy compensation that takes place in high performance liquid chromatography (HPLC) of polymers. Numerous publications, including some books, are devoted to molecular characterization of synthetic polymers, materials presently produced in large and steadily growing quantities, applying methods of HPLC. A knowledge of the molecular characteristics of polymers is indispensable, not only for their proper applications but also for their recycling and remediation. Polymer scientists generally focus on synthesis and potential applications of polymers while not giving due attention to an important central link, their comprehensive characterization in context of development of structure-property correlations. To fill this gap is one of the aims of the present book. The process of entropy/enthalpy compensation plays a decisive role in the advanced method of polymer characterization such as liquid chromatography at critical conditions, eluent gradient interaction chromatography, and temperature gradient interaction chromatography. All chemists working on any aspect of polymer science will find this book a valuable resource for the development of structure-property correlations.

This book describes environmental remediation technologies to remove pollutants from the environment and the environmental materials used for remediation. The focus is on the functional design of environmental materials, especially to create materials for coping with a variety of pollutants in different concentrations and conditions. The authors present research highlights from their work in this area and aim to inspire the development of new concepts in environmental remediation. This work is a must-read for practitioners who are exploring restoration technologies and materials for solving environmental pollution as well as researchers and graduate students studying environmental remediation. A number of Asian researchers who have been engaged in these studies are among the authors, and this book will contribute to solving pollution problems in Asia as well as the rest of the world.

This textbook describes the theory underlying each instrumental procedure and applications of all instrumental methods. It comprehensively covers the instrumental methods of chemical analysis, chromatography, thermal methods of chemical analysis, electrochemical methods, and instrumental methods of analysis of inorganic compounds. These include thermogravimetric analysis, differential thermal analysis, thermometric titrations, and some miscellaneous thermal methods like derivative thermogravimetric analysis, thermobarography, differential scanning calorimetry, thermomechanical analysis, and electric thermal analysis, flame photometry, fluorimetry and phosphorimetry, nephelometric and turbidimetric techniques, refractory and interferometry, and X-ray methods. Each chapter consists a set of problems to aid self-learning. This textbook is highly useful for graduate and postgraduate students on chemistry and its allied fields. It can also be used as a quick reference material byprofessionals working in the various fields of chemistry and material science.

This volume focuses on the most recent trends for greening analytical activities beginning with an introduction to green analytical chemistry followed by a discussion of green analytical chemistry metrics and life-cycle assessment approach to analytical method development. The chapters discuss two main topics; first is the most recent techniques for greening sample pretreatment steps, and second is modern trends for tailoring analytical techniques and instrumentation to implement the green analytical chemistry concept. The role of different kinds of green solvents, such as ionic liquids, supercritical fluids, deep eutectic solvents, bio-based solvents, and surfactants, as well as nanomaterials and green sorption materials in greening sample extraction steps is also a focus of this book. Furthermore, different approaches for greening chromatography as a key analytical technique are discussed. The applications of nanomaterials in analytical procedures are deeply reviewed, and miniaturization of spectrometers is also discussed as a recently evolved approach for efficient green on-site analysis. This book will appeal to a wide readership of academic and industrial researchers in different fields. It can be used in the classroom for undergraduate and postgraduate students focusing on the development of new analytical procedures for organic and inorganic compounds determination in different kinds of samples characterized by complex matrices composition. The book will also be useful for researchers that are interested in both chemical analysis and environment protection.

This volume focuses on the potential use of probiotics in treating metabolic disorders such as diabetes mellitus, metabolic acidosis, and gut dysbiosis. Chapters draw an association between gut microbiota and its diversity with metabolic diseases like diabetes, obesity, related liver and gut disorders; gut-brain axis; increased inflammation, and a compromised immune system resulting from these manifestations and scope of intervention with probiotics. Special attention is laid on describing the mechanisms of action of such beneficial effects of probiotic administration. The ability of probiotics to decrease metabolic endotoxemia by restoring the disrupted intestinal mucosal barrier is also included.The volume is a comprehensive compilation describing the scope and application of probiotic and prebiotic therapy in treating metabolic disorders. Readers will discover how probiotics are not just confined to the microbiology industry but are showing promising results in the medical and pharmaceutical sectors.

Conductive polymers have great potential for antistatic materials. Their key properties include high mechanical, thermal, and chemical stability, easy synthesis, and high synthetic tuneability, among others. This work provides an introduction to conductive polymers as well as descriptions of key applications in analytical chemistry, from sample preparation, integration, and detection. Chemists, materials scientists, environmental analysts, forensic scientists, and many others will find this volume useful.

Humans have numerous microorganisms residing in the body, especially in the gut, far exceeding the human body's normal mammalian cells. Recent research links the gut microbiome, the population of microorganisms living in the gastrointestinal tract, with brain diseases. This volume explores the concept and possibility of its extension to manage a galaxy of CNS diseases, including Parkinson's, Alzheimer's, Autism spectrum disorders, depression, insomnia, and chronic fatigue syndrome. This volume elaborates about communication channels between gut and brain via the vagus nerve, short-chain fatty acids including omega acids, and other inflammasomes.In contrast to the available books on the topic, this title is more versatile and endeavors to bring together scientific pre-clinical, and clinical claims on the probable psychobiotic implication of probiotic therapy. The book will appeal similar to the general public, students, experienced researchers, and academicians. It is endeavored to address an aspect of probiotic usage beyond gut disorders. We hope that it would be helpful to people studying the human nervous system and related conditions with their treatments.

This third edition is a comprehensive and extended study about the best known approaches for preparing the main types of glycosides, covering the classic and more recent glycosylation reactions used for preparing simple and challenging glycosides currently used as potent antiviral and antineoplastic drugs, or fluorogenic substrates used for enzymatic detection in cell biology. Besides, this new edition provides more examples of the glycosidic methodologies followed for preparing complex glycoconjugates such as glycoproteins and glycosphingolipids and gangliosides used as adjuvants or as synthetic vaccines candidates. Also, additional mechanistic evidence is presented for better understanding of the glycosylation reaction, trying to identify the variables mainly depending on protecting and leaving groups, as well as catalyst and reaction condition which altogether directs the anomeric stereo control. A chapter on the glycoside hydrolysis is included in view ofthe increasing interest in the use of biomass as a natural and renewable source for obtaining important intermediates or products used in food or valuable materials. The author includes information in the characterization of glycosides section with the aim of giving additional tools for the structural assignment through NMR, X-Ray and mass spectra techniques.

This book describes current understandings and recent progress in four areas: in the first one, the cytochalasans, a group of fungal derived natural products characterized by a perhydro-isoindolone core fused with a macrocyclic ring are shown to exhibit high structural diversity and a broad spectrum of bioactivities. The second one is dedicated to a description of bioactive compounds from the medicinal plants of Myanmar, the third one is dedicated to new structure elucidation techniques in the field of sesquiterpenes. The last one discusses the endogenous natural products that are produced by human cells including endogenous amines, steroids, and fatty acid derived natural products. The co-metabolism and natural product production of the human microbiome is also described including tryptophan, bile acids, choline, and cysteine.

The book is about the technology and application of Mixed-mode chromatography (MMC). Unlike conventional single-mode HPLC, which resolves the analytes primarily based on their ionic or hydrophobic properties, MMC employs multifunctional stationary phases to exploit at least two modes of interactions (i.e., ionic and hydrophobic) with the analytes and as such often provides resolution that far exceeds that observed with a single-mode process. Over the past two decades, MMC has developed into an important analytical and purification tool in a number of applications in pharmaceutical and biotechnology industries. The technique has been used widely for the analyses of nucleic acids, amino acids, peptides, proteins, glycoproteins, carbohydrates, antibiotics, vaccines, and other products. The purpose of this book is to present a comprehensive survey of mixed-mode chromatography and is intended as a reference guide for graduate students and experienced scientists in pharmaceutical and biotechnology disciplines wishing to gain a deep understanding of this continuously evolving technology.

Recent research in science establishes a direct relation between human gut and skin. Several species of live microbes inhabit the human skin and intestines which far outnumbers the mammalian cells in the human body. Research interest of Nextgen scientists is focused on beneficially harnessing this microbial population to address skin disorders like acne, rosacea, eczema, premature aging, and skin cancer which are established to be a result of skin-microbiome dysbiosis. This volume highlights evidence-based endeavours of the scientific community in this sector. Currently there is no concrete literature which gives a detailed vision on the relationship between gut microbiota and skin related disorders. This volume is an attempt to put together available data in the area and demonstrate usefulness of probiotics as a new therapeutic option for management of these skin diseases which currently show poor prognosis, high cost of treatment and compromised quality of life of the patient.

This book covers a wide range of topics related to functional dyes, from synthesis and functionality to application. Making a survey of recent progress in functional dye chemistry, it provides an opportunity not only to understand the structure-property relationships of a variety of functional dyes but also to know how they are applied in practical use, from electronic devices to biochemical analyses. From classic dyes such as cyanines, squaraines, porphyrins, phthalocyanines, and others to the newest functional π-conjugation systems, various types of functional dyes are dealt with extensively in the book, focusing especially on the state of the art and the future. Readers will benefit greatly from the scientific context in which organic dyes and pigments are comprehensively explained on the basis of chemistry.

In diesem Buch wird die Validierung bioanalytischer Methoden beschrieben. Bei der Qualitätskontrolle von biologischen Arzneimitteln kommen häufig bioanalytische Methoden zum Einsatz, um wichtige Eigenschaften wie den Gehalt oder mögliche Verunreinigungen zu überprüfen. Die eingesetzten Methoden müssen vertrauenswürdige Ergebnisse liefern, damit bei der Bewertung der Ergebnisse keine falschen Schlüsse gezogen werden. Die Vertrauenswürdigkeit wird durch eine Validierung sichergestellt. Die Validierung von bioanalytischen Methoden wird anhand einiger Beispiele dargestellt.

The book explains the principles and fundamentals of Green Analytical Chemistry (GAC) and highlights the current developments and future potential of the analytical green chemistry-oriented applications of various solutions. The book consists of sixteen chapters, including the history and milestones of GAC; issues related to teaching of green analytical chemistry and greening the university laboratories; evaluation of impact of analytical activities on the environmental and human health, direct techniques of detection, identification and determination of trace constituents; new achievements in the field of extraction of trace analytes from samples characterized by complex composition of the matrix; “green” nature of the derivatization process in analytical chemistry; passive techniques of sampling of analytes; green sorption materials used in analytical procedures; new types of solvents in the field of analytical chemistry. In addition green chromatography and related techniques,fast tests for assessment of the wide spectrum of pollutants in the different types of the medium, remote monitoring of environmental pollutants, qualitative and comparative evaluation, quantitative assessment, and future trends and perspectives are discussed. This book appeals to a wide readership of the academic and industrial researchers. In addition, it can be used in the classroom for undergraduate and graduate Ph.D. students focusing on elaboration of new analytical procedures for organic and inorganic compounds determination in different kinds of samples characterized by complex matrices composition.Jacek Namieśnik was a Professor at the Department of Analytical Chemistry, Gdańsk University of Technology, Poland. Justyna Płotka-Wasylka is a teacher and researcher at the same department.

Presenting the most relevant advances for employing carbon-based nanostructured materials for analytical purposes, this book serves as a reference manual that guides readers through the possibilities and helps when selecting the most appropriate material for targeted analytical applications. It critically discusses the role these nanomaterials can play in sample preparation, separation procedures and detection limit improvements whilst also considering the future trends in this field. Useful to direct initiatives, this book fills a gap in the literature for graduate students and professional researchers discussing the advantages and limitations across analytical chemistry in industry and academia.

These proceedings gather carefully selected, peer-reviewed contributions from the International Conference on Pure and Applied Chemistry (ICPAC 2018). The event, the latest installment in a biennial conference series, was held in July 2018 in Mauritius.The respective chapters in this unique collection reflect a wide range of fundamental and applied research in the chemical sciences and various interdisciplinary subjects. In addition to reviews, they highlight cutting-edge advances.

This go-to reference work surveys the current state of knowledge in the field of metal soap-related degradation phenomena in art works. It contains detailed descriptions and images of the different phenomena and addresses the practical aspects of soap formation, preventive conservation, and treatment.The occurrence of metal soaps is one of the defining issues in the conservation of painted surfaces, and one that presently leaves innumerable open questions. It is estimated that around 70% of paintings in museum collections are affected by some form of metal soap-related degradation. In recent years, significant advances have been made in the detection and characterization of these compounds through interdisciplinary approaches including conventional spectroscopy and microscopy as well as emerging synchrotron-based techniques. This book for the first time captures a panoramic overview of the state of knowledge of metal soaps related to both scientific analysis and implications for conservation and treatment. It also critically examines open questions. The book is accessible to audiences with varied backgrounds (e.g. conservators, students of conservation science) while simultaneously presenting the technical details indispensable for academics and researchers active in this field.

'Organic Trace Analysis'presents the basics of trace analysis, from sample preparation to the measurement: Students are introduced to statistical evaluation, quality control technologies, sampling and preparation of organic traces, as well as to enrichment and separation of samples. Spectroscopic techniques as chromatography, capillary electrophoresis, mass spectrometry, and receptor-based bioanalysis are presented in detail.

The series Topics in Heterocyclic Chemistry presents critical reviews on present and future trends in the research of heterocyclic compounds. Overall the scope is to cover topics dealing with all areas within heterocyclic chemistry, both experimental and theoretical, of interest to the general heterocyclic chemistry community. The series consists of topic related volumes edited by renowned editors with contributions of experts in the field. All chapters from Topics in Heterocyclic Chemistry are published Online First with an individual DOI. In references, Topics in Heterocyclic Chemistry is abbreviated as Top Heterocycl Chem and cited as a journal.

Greener than conventional methods, C-H activation methods have flourished during the last decade and become especially attractive to organic chemists. Edited by a practioner in this rapidly developing field, C-H Bond Activation in Organic Synthesis provides an overview of this exciting playground of chemistry. The book summarizes the state of the a

This book highlights analytical chemistry instrumentation and practices applied to the analysis of natural products and their complex mixtures, describing techniques for isolating and characterizing natural products. • Applies analytical techniques to natural products research – an area of critical importance to drug discovery • Offers a one-stop shop for most analytical methods: x-ray diffraction, NMR analysis, mass spectrometry, and chemical genetics • Includes coverage of natural products basics and highlights antibacterial research, particularly important as efforts to combat drug resistance gain prominence • Covers instrumental techniques with enough detail for both current practitioners and beginning researchers

Chiral Derivatizing Agents, Macrocycles, Metal Complexes and Liquid Crystals for Enantiomer Differentiation in NMR Spectroscopy: Thomas J. Wenzel. Chiral NMR Solvating Additives for Differentiation of Enantiomers: Gloria Uccello-Barretta and Federica Balzano. Chiral Sensor Devices for Differentiation of Enantiomers: Kyriaki Manoli, Maria Magliulo and Luisa Torsi. Enantiopure supramolecular cages: synthesis and chiral recognition properties: Thierry Brotin, Laure Guy, Alexandre Martinez, Jean-Pierre Dutasta. Interconversion of Stereochemically Labile Enantiomers (Enantiomerization) : Oliver Trapp. Anisotropy Spectra for Enantiomeric Differentiation of Biomolecular Building Blocks: A.C. Evans, C. Meinert, J.H. Bredehöft, C. Giri, N.C. Jones, S.V. Hoffmann, U.J. Meierhenrich. Self-disproportionation of Enantiomers of Enantiomerically Enriched Compounds: Alexander E. Sorochinsky and Vadim A. Soloshonok.

Die Beiträge dieser Sonderausgabe behandeln die wichtigsten Aspekte dieses intensiv bearbeiteten Teilgebietes der instrumentellen Analytik; sie sind bekanntermaßen praxisbezogen abgefaßt und vermitteln dem Neuling einen schnellen Einstieg, dem Erfahrenen erleichtern sie den Überblick über die aktuellen Entwicklungen.

More than ten million `poison gas'shells, mortar bombs, etc., lie hidden in Europe, many of them relics from World War I. Some were fired and failed to detonate, others were abandoned in old ammunition dumps. Most retain their load of chemical warfare (CW) agents. They are turned up daily in the course of farming and construction. Many European nations have permanent departments concerned with their collection and destruction. Old munitions, when discovered, are usually heavily corroded and difficult to identify. Is it a CW munition? Or an explosive? If CW, what agent does it contain? Once identified, one has to select a destruction method. Some of the methods that have been proposed are less than perfect, and are often complicated by the presence of extraneous chemicals, either mixed with the CW agents during manufacture or formed over decades in the ground. Of particular interest are the insiders'reports on the German CW programmes of both World Wars, and the current status of Russian chemical armaments.

Für die 3. Auflage des bewährten Tabellenwerkes zur Strukturaufklärung organischer Verbindungen wurden die Kapitel über Kernresonanz-, Infrarot- und Massenspektroskopie erweitert und auf den neuesten Stand gebracht. Für Studenten der Chemie und benachbarter Gebiete ist das Werk ein unverzichtbares Nachschlagewerk in den Praktika zur Spektroskopie und Strukturaufklärung.

Dieses Laborhandbuch dient als praktischer Leitfaden zur Durchführung dünnschichtchromatographischer Analysen. Speziell geht Lj. Kraus auf die von ihm entwickelte Horizontalkammer ein. Die Kammer ist in den deutschen Arzneimittelcodex und in das Europäische Arzneibuch eingegangen; darüberhinaus ist sie von der WHO zur Kontrolle von Arzneipflanzen anerkannt. Nach einer Einführung in die DC-Technik sowie ausführlichen Kapiteln über stationäre und mobile Phasen und Nachweismethoden gehen die Autoren auf zahlreiche Anwendungsbeispiele aus der Pharmazeutischen Chemie und der Lebensmittel- und Biochemie ein. Farbabbildungen der wichtigsten Chromatogramme ergänzen den Anwendungsteil und bilden eine wichtige Hilfe bei der Beurteilung eigener DC-Läufe.

reviews of the first edition -- `...this is an excellent, comprehensive book and can be highly recommended to those who want an up-to-date reference on steroid analysis.'Analyst

This book presents newer applications of paramagnetic sensors for the study of polymer materials structure, microreology and molecular dynamics. Paramagnetic (or spin) sensors have found wide use in structural and dynamic research of condensed media using the spectroscopy of electron paramagnetic resonance (EPR). Stable nitroxide radicals are the most exploited paramagnetic sensors which formed the basis of spin probes and labels technique well known to the experts in fields of chemical and biological materials science. With the proliferation of new materials (composites, nano-dimensional fillers) new trends in the methodology of paramagnetic sensors application have been outlined. This book is devoted to these new trends in polymers and nanocomposites research. It observes the methods of adaptation of EPR spectroscopy of paramagnetic sensors to interface layers investigation, analysis of the systems containing magnetic nanoparticles, identification of composites ingredients by EPR spectra of free radicals, detection of the shear component of polymer materials deformation. This book also presents, at an accessible level, the theory of EPR, the structure and properties of paramagnetic sensors - stable nitroxide radicals and methods of basic parameters calculation from their EPR spectra. Intended for researchers and educators specialized in polymer material science and colloid chemistry. This book can also be used as a practical guide on paramagnetic resonance and paramagnetic sensors application for students and postgraduates.

Plant Drug Analysis has proven an invaluable and unique aid for all those involved with drug production and analysis, including pharmacists, chemical and pharmaceutical researchers and technicians, drug importers and exporters, governmental chemical control agencies, and health authorities. From the reviews of the German Edition:'The reviewer would like to recommend this excellent book to all chromatographers, as he considers it highly relevant to the solution of numerous problems. Its main purpose is the demonstration of thin-layer chromatograms of the usual commercial drugs as an aid in testing for identity and purity.... 165 colour plates, each showing 6 chromatograms and all of superb quality photographs...'(Journal of Chromatography)

Dieser Buchtitel ist Teil des Digitalisierungsprojekts Springer Book Archives mit Publikationen, die seit den Anfängen des Verlags von 1842 erschienen sind. Der Verlag stellt mit diesem Archiv Quellen für die historische wie auch die disziplingeschichtliche Forschung zur Verfügung, die jeweils im historischen Kontext betrachtet werden müssen. Dieser Titel erschien in der Zeit vor 1945 und wird daher in seiner zeittypischen politisch-ideologischen Ausrichtung vom Verlag nicht beworben.

Das Analytiker Taschenbuch bietet in einzelnen, sehr aktuellen und praxisbezogenen Beiträgen komprimierte Informationen über neue analytische Techniken und deren Anwendung in allen relevanten Gebieten, wie Umweltforschung, Werkstoffwissenschaften, biochemische und klinische Analyse und Lebensmittelanalytik. Die in die Abschnitte Grundlagen, Methoden und Anwendungen untergliederten Beiträge können dem Analytiker die Arbeit sehr erleichtern. Ein umfangreicher Basisteil u.a. mit MAK-Werten, SI-Einheiten und Literaturübersichten schließt jeden Band ab. Wegen des interdisziplinären Zusammenwirkens der analytischen Chemie mit anderen Fachgebieten ist das Werk für einen besonders großen Leserkreis von Interesse.

Das Analytiker Taschenbuch bietet in einzelnen, sehr aktuellen und praxisbezogenen Beiträgen komprimierte Informationen über neue analytische Techniken und deren Anwendung in allen relevanten Gebieten wie Umweltforschung, Werkstoffwissenschaften, biochemische und klinisch-chemische Analyse und Lebensmittelanalytik. Die in die Abschnitte Grundlagen, Methoden und Anwendungen untergliederten Beiträge können dem Analytiker die Arbeit sehr erleichtern. Ein umfangreicher Basisteil u.a. mit MAK-Werten, SI-Einheiten und Literaturübersichten schließt jeden Band ab. Wegen des interdisziplinären Zusammenwirkens der analytischen Chemie mit anderen Fachgebieten ist das Werk für einen besonders großen Leserkreis von Interesse.

Das Analytiker-Taschenbuch bietet in einzelnen, sehr aktuellen und praxisbezogenen Beiträgen komprimierte Informationen über neue analytische Techniken und deren Anwendung in allen relevanten Gebieten wie Umweltforschung, Werkstoffwissenschaften, biochemische und klinisch-chemische Analyse und Lebensmittelanalytik. Die in die Abschnitte Grundlagen, Methoden und Anwendungen untergliederten Beiträge können dem Analytiker die Arbeit sehr erleichtern. Ein umfangreicher Basisteil u.a. mit MAK-Werten, SI-Einheiten und Literaturübersichten schließt jeden Band ab. Wegen des interdisziplinären Zusammenwirkens der analytischen Chemie mit anderen Fachgebieten ist das Werk für einen besonders großen Leserkreis von Interesse.

Die Beiträge dieser Sonderausgabe decken den gesamten Bereich der wieder sehr aktuellen IR-spektroskopischen Analytik ab; sie sind bekanntermaßen praxisbezogen abgefaßt und vermitteln dem Neuling einen schnellen Einstieg, dem Erfahrenen erleichtern sie den Überblick über die aktuellen Entwicklungen.

Although numerical data are, in principle, universal, the compilations presented in this book are extensively annotated and interleaved with text. This translation of the second German edition has been prepared to facilitate the use of this work, with all its valuable detail, by the large community of English-speaking scientists. Translation has also provided an opportunity to correct and revise the text, and to update the nomenclature. Fortunately, spectroscopic data and their relationship with structure do not change much with time so one can predict that this book will, for a long period of time, continue to be very useful to organic chemists involved in the identification of organic compounds or the elucidation of their structure. Klaus Biemann Cambridge, MA, April 1983 Preface to the First German Edition Making use of the information provided by various spectroscopic tech­ niques has become a ·matter of routine for the analytically oriented organic chemist. Those who have graduated recently received extensive training in these techniques as part of the curriculum while their older colleagues learned to use these methods by necessity. One can, therefore, assume that chemists are well versed in the proper choice of the methods suitable for the solution of a particular problem and to translate the experimental data into structural information.

I t is a pleasure to write a few lines to welcome this labour of Iove. I t is always dangeraus to draw sharp divisions between the interests of different scientists. However, in the present stage of progress in enzymology, there are those who are primarily interested in the molecular mechanisms of the reactions of a few selected enzymes, while others are involved in the grand scheme of the chemical metabolism of cells or whole organisms. Fortunately Dr. Barman has had experience in both the molecular and the metabolic aspects of enzymology. He therefore knows the require­ ments of research workers interested in enzymes from many different points of view. It would be foolish to hope that a handbook of this kind will provide all the information about enzymes which different specialists would wish to find. The author has attempted to help users in the following way. If one Iooks up a particular enzyme one will find all the basic data and a very good Iist of references for more specialized information. Apart from selection of the type of information provided, the author's judgement on the reliability of data is, of course, of critical importance in a handbook. If contradicting published information about some property of an enzyme has to be sorted out, it is often neither possible to teil the whole story nor to give an objective judgement.