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Author : Walter Wagner,Clarence Joseph Hull
Publisher : Marcel Dekker
Page : 248 pages
File Size : 54,7 Mb
Release : 1971
Category : Science
ISBN : UOM:39015016087259
Author : Joseph Jordan
Publisher : Unknown
Page : 250 pages
File Size : 43,6 Mb
Release : 1971
Category : Volumetric analysis
ISBN : PSU:000021486012
Author : Walter Wagner,Clarence J. Hull
Publisher : Unknown
Page : 239 pages
File Size : 47,8 Mb
Release : 1971
Category : Electronic
ISBN : 078370948X
Author : Balwant Singh,Marta Camps-Arbestain,Johannes Lehmann
Publisher : CSIRO PUBLISHING
Page : 321 pages
File Size : 45,7 Mb
Release : 2017-03
Category : Nature
ISBN : 9781486305100
Interest in biochar among soil and environment researchers has increased dramatically over the past decade. Biochar initially attracted attention for its potential to improve soil fertility and to uncouple the carbon cycle, by storing carbon from the atmosphere in a form that can remain stable for hundreds to thousands of years. Later it was found that biochar had applications in environmental and water science, mining, microbial ecology and other fields. Beneficial effects of biochar and its environmental applications cannot be fully realised unless the chemical, physical, structural and surface properties of biochar are known. Currently many of the analytical procedures used for biochar analysis are not well defined, which makes it difficult to choose the right biochar for an intended use and to compare the existing data for biochars. Also, in some instances the use of inappropriate procedures has led to erroneous or inaccurate values for biochars in the scientific literature. Biochar: A Guide to Analytical Methods fills this gap and provides procedures and guidelines for routine and advanced characterisation of biochars. Written by experts, each chapter provides background to a technique or procedure, a stepwise guide to analyses, and includes data for biochars made from a range of feedstocks common to all presented methods. Discussion about the unique features, advantages and disadvantages of a particular technique is an explicit focus of this handbook for biochar analyses. Biochar is primarily intended for researchers, postgraduate students and practitioners who require knowledge of biochar properties. It will also serve as an important resource for researchers, industry and regulatory agencies dealing with biochar.
Author : Robert Martin Caven,A. B. Crawford
Publisher : Unknown
Page : 446 pages
File Size : 49,6 Mb
Release : 1962
Category : Science
ISBN : UOM:39015065654793
Author : United States. Environmental Protection Agency. Library Systems Branch
Publisher : Unknown
Page : 702 pages
File Size : 49,8 Mb
Release : 1974
Category : Environmental protection
ISBN : UCR:31210012859458
Author : Yolanda Picó
Publisher : Elsevier
Page : 848 pages
File Size : 55,7 Mb
Release : 2008-09-10
Category : Technology & Engineering
ISBN : 0080931928
Food Contaminants and Residue Analysis treats different aspects of the analysis of contaminants and residues in food and highlights some current concerns facing this field. The content is initiated by an overview on food safety, the objectives and importance of determining contaminants and residues in food, and the problems and challenges associated to these analyses. This is followed by full details of relevant EU and USA regulations. Topics, such as conventional chromatographic methods, accommodating cleanup, and preparing substances for further instrumental analysis, are encompassed with new analytical techniques that have been developed, significantly, over the past few years, like solid phase microextraction, liquid chromatography-mass spectrometry, immunoassays, and biosensors. A wide range of toxic contaminants and residues, from pesticides to mycotoxins or dioxins are examined, including polychlorinated biphenyls, polycyclic aromatic hydrocarbons, N-nitrosamines, heterocyclic amines, acrylamide, semicarbazide, phthalates and food packing migrating substances. This book can be a practical resource that offers ideas on how to choose the most effective techniques for determining these compounds as well as on how to solve problems or to provide relevant information. Logically structured and with numerous examples, Food Contaminants and Residue Analysis will be valuable a reference and training guide for postgraduate students, as well as a practical tool for a wide range of experts: biologists, biochemists, microbiologists, food chemists, toxicologists, chemists, agronomists, hygienists, and everybody who needs to use the analytical techniques for evaluating food safety.
Author : D. T. E. Hunt,Anthony Leslie Wilson
Publisher : Royal Society of Chemistry
Page : 722 pages
File Size : 52,5 Mb
Release : 1986
Category : Science
ISBN : 9780851867977
Information requirements of measurement programmes; Sampling; Basic problems and aims of sampling; Time and frequency of sampling; Overall design of sampling programmes; Procedures for obtaining samples of waters; Preparation, transport, storage, and stability of samples; The nature and importance of errors in analytical results; Random error; Systematic error; Accuracy; Effects of errors on decision making; Need to estimate analytical errors; Estimation and control of the Bias of analytical results; Detailed consideration and assessment of individual sources of Bias; Assessment of the overall Bias of analytical results; Estimation and control of the precision of analytical results; Model of Random errors; Achievement of specified accuracy by a group of laboratories; Types of inter-laboratory studies; Reporting analytical results; Reporting results close to the lower concentration limit of an analytical system; The selection of analytical methods; General precautions in water-analysis laboratories; Analytical techniques; Automatic and on-line analysis; Computers in water analysis; The scope for computing in water analysis and related activities.
Author : Salvador Alegret,Arben Merkoci
Publisher : Elsevier
Page : 1028 pages
File Size : 41,8 Mb
Release : 2007-10-04
Category : Science
ISBN : 0080560695
Electrochemical Sensor Analysis (ECSA) presents the recent advances in electrochemical (bio)sensors and their practical applications in real clinical, environment, food and industry related samples, as well as in the safety and security arena. In a single source, it covers the entire field of electrochemical (bio)sensor designs and characterizations. The 38 chapters are grouped in seven sections: 1) Potentiometric sensors, 2) Voltammetric sensors, 3) Electrochemical gas sensors 4) Enzyme-based sensors 5) Affinity biosensors 6) Thick and thin film biosensors and 7) Novel trends. Written by experts working in the diverse technological and scientific fields related to electrochemical sensors, each section provides an overview of a specific class of electrochemical sensors and their applications. This interdisciplinary text will be useful for researchers and professionals alike. Covers applications and problem solving (sensitivity, interferences) in real sample analysis Details procedures to construct and characterize electrochemical (bio)sensors
Author : Satinder Ahuja,Neil Jespersen
Publisher : Elsevier
Page : 896 pages
File Size : 47,8 Mb
Release : 2006-10-17
Category : Science
ISBN : 0080467229
Modern Instrumental Analysis covers the fundamentals of instrumentation and provides a thorough review of the applications of this technique in the laboratory. It will serve as an educational tool as well as a first reference book for the practicing instrumental analyst. The text covers five major sections: 1. Overview, Sampling, Evaluation of Physical Properties, and Thermal Analysis 2. Spectroscopic Methods 3. Chromatographic Methods 4. Electrophoretic and Electrochemical Methods 5. Combination Methods, Unique Detectors, and Problem Solving Each section has a group of chapters covering important aspects of the titled subject, and each chapter includes applications that illustrate the use of the methods. The chapters also include an appropriate set of review questions. * Covers the fundamentals of instrumentation as well as key applications * Each chapter includes review questions that reinforce concepts * Serves as a quick reference and comprehensive guidebook for practitioners and students alike
Author : Amadeo Rodriguez Fernandez-Alba
Publisher : Elsevier
Page : 452 pages
File Size : 43,8 Mb
Release : 2012-09-06
Category : Science
ISBN : 9780444538109
New developments in mass spectrometry have allowed routine identification and lowered limits of detection at levels only imagined a decade ago. Thousands of contaminants and residues in the food supply and the environment are now being reported. Between 2005 and 2010, more than 5,000 publications covering TOF-MS and environmental and food analysis were published, showing the importance of the technique in these applications. This book covers the basic principles of method development in GC- and LC-TOF-MS as well as the main operational parameters related to TOF-MS. The second part focuses on the relevant environmental applications, including quality control aspects as well as data collection. The third part is devoted to relevant applications in food analysis, including validation procedures for screening analysis as well as relevant databases. Outlines basic concepts and principles of gas and liquid chromatography TOF-MS and its application in food analysis Includes quality control and data collection techniques Focuses on environmental implications and safety concerns
Author : John M. Chalmers,Robert J. Meier
Publisher : Elsevier
Page : 784 pages
File Size : 48,8 Mb
Release : 2008-12-09
Category : Science
ISBN : 9780080932040
Written by expert contributors from the academic and industrial sectors, this book presents traditional and modern approaches to polymer characterization and analysis. The emphasis is on pragmatics, problem solving and property determination; real-world applications provide a context for key concepts. The characterizations focus on organic polymer and polymer product microstructure and composition. Approaches molecular characterization and analysis of polymers from the viewpoint of problem-solving and polymer property characterization, rather than from a technique championing approach Focuses on providing a means to ascertaining the optimum approach or technique(s) to solve a problem/measure a property, and thereby develop an analytical competence in the molecular characterization and analysis of real-world polymer products Provides background on polymer chemistry and microstructure, discussions of polymer chain, morphology, degradation, and product failure and additive analysis, and considers the supporting roles of modeling and high-throughput analysis
Author : Damia Barcelo,Marinella Farre
Publisher : Newnes
Page : 382 pages
File Size : 42,6 Mb
Release : 2012-10-03
Category : Science
ISBN : 9780444563286
The application of nanotechnology in different consumer products has delivered new products with highly desirable properties, but at same time has opened a new window for a wide group of emerging contaminants and a new type of human exposure which needs to be assessed. Most of the current human toxicological information on nanomaterials comes from nano-sized particles in air, and their effects via inhalation. Other routes of human exposure, such as water and food, and the effects on human health and the environment have been less studied. It is the recent research in these areas that is highlighted here in one of the first books covering the analysis and ecotoxicological evaluation of nanomaterials in food and the environment, with both matrices being of considerable interest. In addition to providing a global summary of recent research, this book shows how widely used chromatographic and spectroscopic methods can be added to the analytical arsenal of microscopic techniques that have commonly been used to characterize nanomaterials. Describes the analytical techniques used to characterize nanomaterials and their applications in environmental or food samples Includes analysis and ecotoxicological evaluation of nanomaterials in food and environmental matrices Takes a detailed look at the research on emerging fields of human exposure to nanomaterials and their environmental risks
Author : E. Smolkova-Keulemansova,L. Feltl
Publisher : Elsevier
Page : 493 pages
File Size : 43,6 Mb
Release : 1991-11-06
Category : Science
ISBN : 9780080934273
Nowadays, there are increasing demands for the control and specification of all aspects of industrial manufacturing. There is also a growing need to understand various biological processes and conditions for agricultural production, and concern for protection of the environment and human health. These factors have made it imperative to develop adequate methods for the analysis of gaseous substances or substances that can be converted to the gaseous state. It is not only necessary to apply known and developed methods correctly, but novel analytical procedures must also be found. Instrumentation should be improved and the applications of these methods will have to be extended. The present volume provides a comprehensive description of the state-of-the-art and of future possibilities in the analysis of gaseous substances. In the individual chapters the following themes have been discussed; the theoretical basis for the methods, a description of the instrumentation and the steps necessary in actual analyses and an outline of the principal areas in which each method can be employed. Both classical methods that are still useful for the solution of analytical problems using simple instrumentation, and the newest methods in the field are described. Special attention is paid to modern electrochemical and spectroscopic methods, and to methods based on a number of physical principles. Gas chromatography is discussed in the greatest detail because of its specially important position in modern analytical chemistry. The book should be well received by the analytical public and should be extremely useful to students and workers in scientific research laboratories and in fields dealing with environmental protection.
Author : Spas D. Kolev,Ian D. McKelvie
Publisher : Elsevier
Page : 814 pages
File Size : 49,8 Mb
Release : 2008-12-03
Category : Medical
ISBN : 9780444530943
The concept of flow injection analysis (FIA) was first proposed in 1975 by Ruzicka and Hansen, and this initiated a field of research that would, over more than three decades, involve thousands of researchers, and which has to date resulted in close to 20,000 publications in the international scientific literature. Since its introduction, a number of books, including some specialized monographs, have been published on this subject with the latest in 2000. However, in this decade there has been a number of significant advances in the flow analysis area, and in particular in sequential injection analysis (SIA) techniques, and more recently with the introduction of Lab on a Valve (LOV) and bead injection flow systems. This book aims to cover the most important advances in these new areas, as well as in classical FIA, which still remains the most popular flow analysis technique used in analytical practice. Topics covered in the 23 chapters include the fundamental and underlying principles of flow analysis and associated equipment, the fluid-dynamic theory of FIA, an extensive coverage of detection methods (e.g. atomic and molecular spectrometry, electroanalytical methods). In addition, there are several chapters on on-line separation (e.g. filtration, gas diffusion, dialysis, pervaporation, solvent and membrane extraction, and chromatography), as well as on other sample pretreatment techniques, such as digestion. The book also incorporates several chapters on major areas of application of flow analysis in industrial process monitoring (e.g food and beverages, drugs and pharmaceuticals), environmental and agricultural analysis and life sciences. The contributing authors, who include the founders of flow injection analysis, are all leading experts in flow analytical techniques, and their chapters not only provide a critical review of the current state of this area, but also suggest future trends. Provides a critical review of the current state of and future trends in flow analytical techniques Offers a comprehensive elucidation of the principles and theoretical basis of flow analysis Presents important applications in all major areas of chemical analysis, from food products to environmental concerns
