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Advanced Gas Chromatography - Progress in Agricultural, Biomedical and Industrial Applications

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ISBN: 9789535102984 Year: Pages: 472 DOI: 10.5772/2518 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:48

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Progress in agricultural, biomedical and industrial applications' is a compilation of recent advances and developments in gas chromatography and its applications. The chapters cover various aspects of applications ranging from basic biological, biomedical applications to industrial applications. Book chapters analyze new developments in chromatographic columns, microextraction techniques, derivatisation techniques and pyrolysis techniques. The book also includes several aspects of basic chromatography techniques and is suitable for both young and advanced chromatographers. It includes some new developments in chromatography such as multidimensional chromatography, inverse chromatography and some discussions on two-dimensional chromatography. The topics covered include analysis of volatiles, toxicants, indoor air, petroleum hydrocarbons, organometallic compounds and natural products. The chapters were written by experts from various fields and clearly assisted by simple diagrams and tables. This book is highly recommended for chemists as well as non-chemists working in gas chromatography.

Advances in Titration Techniques

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ISBN: 9789535135234 9789535135241 Year: Pages: 218 DOI: 10.5772/66980 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:50

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In chemistry, titration (a.k.a. titrimetry) is a common laboratory technique used for the determination of the unknown concentration of an analyte. Because of its versatility, the application of various forms of titration can affect nearly all aspects of society. This book is specifically aimed at broadening and deepening the theory and applications of titration. It contains six chapters being organized into three main sections: Volumetric Titration, Isothermal Titration Calorimetry, and Titrimetric Principles in Electrolytic Systems. Each chapter has been well written by internationally renowned experts in the field of chemistry, with mathematical expressions and illustrative examples selectively and logically presented. It is highly recommended for postgraduate students and scientists alike.

Analytical Pyrolysis

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ISBN: 9781789849585 9781789849592 Year: Pages: 102 DOI: 10.5772/intechopen.75893 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:52

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Analytical pyrolysis deals with the structural identification and quantitation of pyrolysis products with the ultimate aim of establishing the identity of the original material and the mechanisms of its thermal decomposition. The pyrolytic process is carried out in a pyrolyzer interfaced with analytical instrumentation such as gas chromatography (GC), mass spectrometry (MS), gas chromatography coupled with mass spectrometry (GC/MS), or with Fourier-transform infrared spectroscopy (GC/FTIR). By measurement and identification of pyrolysis products, the molecular composition of the original sample can often be reconstructed.This book is the outcome of contributions by experts in the field of pyrolysis and includes applications of the analytical pyrolysis-GC/MS to characterize the structure of synthetic organic polymers and lignocellulosic materials as well as cellulosic pulps and isolated lignins, solid wood, waste particle board, and bio-oil. The thermal degradation of cellulose and biomass is examined by scanning electron micrography, FTIR spectroscopy, thermogravimetry (TG), differential thermal analysis, and TG/MS. The calorimetric determination of high heating values of different raw biomass, plastic waste, and biomass/plastic waste mixtures and their by-products resulting from pyrolysis is described.

Applications of the Voltammetry

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ISBN: 9789535132158 9789535132165 Year: Pages: 162 DOI: 10.5772/65154 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:50

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The present book Applications of Voltammetry is a collection of six chapters, organized in two sections. The first book section is dedicated to the application of mathematical methods, such as multivariate calibration coupled with voltammetric data and numeric simulation to solve quantitative electroanalytical problems. The second book section is devoted to the electron transfer kinetic studies and electroanalytical applications of the voltammetry, such as interfacial electron transfer of the haem group in human haemoglobin molecules, physisorbed on glass-/tin-doped indium oxide substrates, analysis of dyes and metal ions in trace concentrations and characterization of the antioxidant properties of wine and wine products, using a variety of voltammetric techniques and electrodes. The most recent trends and advances in voltammetry are professionally commented.

Atomic-force Microscopy and Its Applications

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ISBN: 9781789851694 9781789851700 Year: Pages: 114 DOI: 10.5772/intechopen.74139 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:52

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Atomic force microscopy is a surface analytical technique used in air, liquids or a vacuum to generate very high-resolution topographic images of a surface, down to atomic resolution. This book is not only for students but also for professional engineers who are working in the industry as well as specialists. This book aims to provide the reader with a comprehensive overview of the new trends, research results and development of atomic force microscopy. The chapters for this book have been written by respected and well-known researchers and specialists from different countries. We hope that after studying this book, you will have objective knowledge about the possible uses of atomic force microscopy in many scientific aspects of our civilisation.

Calibration and Validation of Analytical Methods - A Sampling of Current Approaches

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ISBN: 9781789230840 9781789230857 Year: Pages: 174 DOI: 10.5772/intechopen.69918 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:51

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This book seeks to introduce the reader to current methodologies in analytical calibration and validation. This collection of contributed research articles and reviews addresses current developments in the calibration of analytical methods and techniques and their subsequent validation. Section 1, ""Introduction,"" contains the Introductory Chapter, a broad overview of analytical calibration and validation, and a brief synopsis of the following chapters. Section 2 ""Calibration Approaches"" presents five chapters covering calibration schemes for some modern analytical methods and techniques. The last chapter in this section provides a segue into Section 3, ""Validation Approaches,"" which contains two chapters on validation procedures and parameters. This book is a valuable source of scientific information for anyone interested in analytical calibration and validation.

Calorimetry - Design, Theory and Applications in Porous Solids

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ISBN: 9781789234381 9781789234398 Year: Pages: 124 DOI: 10.5772/intechopen.68244 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 07:51:51

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Today, calorimetry is considered an art (although some consider it a tool) that studies the energy changes that occur during a change of state. This allows physicochemical analysis to study in detail the thermodynamic systems and to evaluate the different variables that establish the characteristics of the system itself. This book illustrates how the reader can use this technique in a wide spectrum of applications.

Crystal Dislocations: Their Impact on Physical Properties of Crystals

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ISBN: 9783038974659 / 9783038974666 Year: Pages: 316 DOI: 10.3390/books978-3-03897-466-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemistry (General) --- Analytical Chemistry
Added to DOAB on : 2019-01-09 12:11:05
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The proposed existence of the edge and screw dislocation in the 1930s, and the subsequent work showing that dislocation theory could explain the plastic deformation of crystals, represent an important step in developing our understanding of materials into a science. The continued work involved with characterization of dislocations and linking them to a variety of physical properties in both single and poly crystals have made enormous progress over the past 50 years. It is rare to find a technical application involving a material with any crystal structure that is not impacted by dislocations; mechanical properties, massive phase transformations, interphases, crystal growth, electronic properties, the list goes on. In many systems the properties is controlled by the formation of partial dislocations separated by a stacking fault; for example plastic deformation via deformation twinning. And finally, giant strides have been made in characterization and modeling of systems containing dislocations. The Special Issue on “Crystal Dislocations” is intended to provide a unique international forum aimed at covering a broad range of results involving dislocations and their importance on crystal properties and crystal growth. Scientists working in a wide range of disciplines are invited to contribute to this cause. Dr. K. Peter D. Lagerlof, Associate Professor of Ceramics Guest Editor

Desalination, Trends and Technologies

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ISBN: 9789533073118 Year: Pages: 348 DOI: 10.5772/583 Language: English
Publisher: InTechOpen
Subject: Analytical Chemistry
Added to DOAB on : 2019-10-03 09:47:08

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The book comprises 14 chapters covering all the issues related to water desalination. These chapters emphasize the relationship between problems encountered with the use of feed water, the processes developed to address them, the operation of the required plants and solutions actually implemented. This compendium will assist designers, engineers and investigators to select the process and plant configuration that are most appropriate for the particular feed water to be used, for the geographic region considered, as well as for the characteristics required of the treated water produced. This survey offers a comprehensive, hierarchical and logical assessment of the entire desalination industry. It starts with the worldwide scarcity of water and energy, continues with the thermal - and membrane-based processes and, finally, presents the design and operation of large and small desalination plants. As such, it covers all the scientific, technological and economical aspects of this critical industry, not disregarding its environmental and social points of view. One of InTech's books has received widespread praise across a number of key publications. Desalination, Trends and Technologies (Ed. Schorr, M. 2011) has been reviewed in Corrosion Engineering, Science & Technology – the official magazine for the Institute of Materials, Minerals & Mining, and Taylor & Francis's Desalination Publications. Praised for its “multi-faceted content [which] contributes to enrich it,” and described as “an essential companion...[that] enables the reader to gain a deeper understanding of the desalination industry,” this book is testament to the quality improvements we have been striving towards over the last twelve months.

Diamond Crystals

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ISBN: 9783038976301 / 9783038976318 Pages: 174 DOI: 10.3390/books978-3-03897-631-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Environmental Sciences --- Mathematics --- Physics (General) --- Analytical Chemistry
Added to DOAB on : 2019-02-21 10:46:29
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This Special Issue is intended to serve as an interdisciplinary forum covering broad aspects of the science, technology, and application of synthetic and natural diamonds. The issue contains 13 papers, which highlight recent investigations and developments in diamond research related to the diverse problems of natural diamond genesis, diamond synthesis and growth using CVD and HPHT techniques, and the use of diamond in both traditional applications, such as mechanical machining of materials, and the new recently emerged areas, such as quantum technologies. The results presented in the contributions collected in this special issue clearly demonstrate that diamond occupies a very special place in modern science and technology.

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