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Applications of Supercritical Fluids in Industrial Analysis

Applications of Supercritical Fluids in Industrial Analysis Author J.R. Dean
ISBN-10 9789401121460
Release 2012-12-06
Pages 224
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The continued search for rapid, efficient and cost-effective means of analytical measurement has introduced supercritical fluids into the field of analytical chemistry. Two areas are common: supercritical fluid chroma tography and supercritical fluid extraction. Both seek to exploit the unique properties of a gas at temperatures and pressures above the critical point. The most common supercritical fluid is carbon dioxide, employed because of its low critical temperature (31 °C), inertness, purity, non-toxicity and cheapness. Alternative supercritical fluids are also used and often in conjunction with modifiers. The combined gas-like mass transfer and liquid-like solvating characteristics have been used for improved chroma tographic separation and faster sample preparation. Supercritical fluid chromatography (SFC) is complementary to gas chro matography ( GC) and high performance liquid chromatography (HPLC), providing higher efficiency than HPLC, together with the ability to analyse thermally labile and high molecular weight analytes. Both packed and open tubular columns can be employed, providing the capability to analyse a wide range of sample types. In addition, flame ionization detection can be used, thus providing 'universal' detection.



Practical Supercritical Fluid Chromatography and Extraction

Practical Supercritical Fluid Chromatography and Extraction Author Thomas Caudell
ISBN-10 9781351422505
Release 2018-05-04
Pages 456
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An exploration of fundamental as well as practical aspects of supercritical fluid chromatography and extraction. It addresses topics such as: packed columns in SFC; detection in SFC; supercritical fluid chromatography/mass spectroscopy; and evaporative light scattering detection in SFC.



Supercritical Fluid Chromatography with Patked Columns

Supercritical Fluid Chromatography with Patked Columns Author Klaus Anton
ISBN-10 0824700139
Release 1997-09-19
Pages 472
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From the analytical to industrial preparative scale, this work provides a praxis-oriented overview of packed column supercritical fluid chromatography. It discusses and evaluates established applications and techniques, up-to-date and promising developments, and commercial instrumentation devices for use in industry. The book also reveals possibilities for problem solving and future innovations.



Plant Volatile Analysis

Plant Volatile Analysis Author Hans F. Linskens
ISBN-10 354061589X
Release 1997-04-16
Pages 266
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The book covers a vast array of methods for the analysis of volatile compounds exuded by plants. Some of these volatiles are of great commercial importance, including the aromas of wines and teas, and volatiles in fruits. Other volatiles such as essential oils can be useful for chemotaxonomic purposes, and a chapter on an emerging method, that of chemometric analysis of such data, is included. Isoprene and ammonia rarely find a place in analytical methods presented for plant materials, but methods for these volatiles are described in this book. The volatiles given off by flowers are also included, and in situ headspace analysis of these volatiles is described, a method of potential use for the study of insect-plant interactions.



Lipid Analysis in Oils and Fats

Lipid Analysis in Oils and Fats Author R.J. Hamilton
ISBN-10 9781461311317
Release 2012-12-06
Pages 386
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Lipid Analysis in Oils and Fats has been writing in one form or another for most of life. You can find so many inspiration from Lipid Analysis in Oils and Fats also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Lipid Analysis in Oils and Fats book for free.



Supercritical Fluid Chromatography

Supercritical Fluid Chromatography Author Gregory K. Webster
ISBN-10 9789814463003
Release 2014-02-04
Pages 418
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Analytical chemists in the pharmaceutical industry are always looking for more-efficient techniques to meet the analytical challenges of today’s pharmaceutical industry. One technique that has made steady advances in pharmaceutical analysis is supercritical fluid chromatography (SFC). SFC is meeting the chromatography needs of the industry by providing efficient and selective testing capabilities on the analytical and preparative scale. The supercritical fluid mobile phase, consisting mainly of CO2, facilitates cost reduction costs and helps the industry in meeting green chemistry standards. This book provides a comprehensive overview of the use of SFC in pharmaceutical analysis. Supercritical Fluid Chromatography reviews the use of SFC in drug-discovery applications and describes its application in drug development. When a drug is developed and brought to market, it is tested many times for impurities and degradants, enantiomeric purity, and analytical and preparative isolations—it is tested during discovery and development and for under-regulated and unregulated methodologies. The book describes the use of SFC for each of these applications and discusses more in-depth topics, such as the use of SFC in mass spectrometric and polarographic detection. The book also sheds light on the role of SFC in drug development from natural products and the advancement of SFC with new technologies and its use in pilot-scale operations as a chromatographic technique.



Supercritical Fluid Cleaning

Supercritical Fluid Cleaning Author Samuel P. Sawan
ISBN-10 9780815519164
Release 1998-12-31
Pages 306
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Although supercritial fluid (SCF) technology is now widely used in extraction and purification processes (in the petrochemical, food and pharmaceuticals industries), this book is the first to address the new application of cleaning. The objective is to provide a roadmap for readers who want to know whether SCF technology can meet their own processing and cleaning needs. It is particularly helpful to those striving to balance the requirements for a clean product and a clean environment. The interdisciplinary subject matter will appeal to scientists and engineers in all specialties ranging from materials and polymer sciences to chemistry and physics. It is also useful to those developing new processes for other applications, and references given at the end of each chapter provide links to the wider body of SCF literature. The book is organized with topics progressing from the fundamental nature of the supercritical state, through process conditions and materials interactions, to economic considerations. Practical examples are included to show how the technology has been successfully applied. The first four chapters consider principles governing SCF processing, detailing issues such as solubility, design for cleanability, and the dynamics of particle removal. The next three chapters discuss surfactants and microemulsions, SCF interaction with polymers, and the use of supercritical carbon dioxide (CO2) as a cleaning solvent. The closing chapters focus on more practical considerations such as scaleup, equipment costs, and financial analysis.



Oil Extraction and Analysis

Oil Extraction and Analysis Author D. L. Luthria
ISBN-10 1893997782
Release 2004-04-30
Pages 282
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This book contains papers from the symposium "Critical Issues, Current and Emerging Technologies for Determination of Crude Fat Content in Food, Feed and Seeds," held in 2003 at the AOCS Annual Meeting in Kansas City, Missouri. The topics covered give a broad perspective of the challenges and issues of the value-added enhanced products. This book will be of interest to biotechnology professionals, processors, scientists, nutritionists, economists, new product development and business professionals, official agencies, and others actively engaged in the development and marketing of value-added products.



Supercritical Fluid Nanotechnology

Supercritical Fluid Nanotechnology Author Concepcion Domingo Pascual
ISBN-10 9789814613415
Release 2015-10-22
Pages 566
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The environmental and climate program demands technological solutions in the chemical industry that incorporate prevention of pollution. Major advances are needed to reduce the use of organic solvents, such as methanol, toluene, xylene, methyl ethyl ketone, and dichloromethane, which account for 27 percent of total toxics release inventory chemicals. The replacement of those solvents is a key point to enable the transition from classical synthesis to green chemistry and nanotechnology concepts, i.e., to sustainability. The first radical option to achieve this goal is to completely avoid the use of solvents, as occurs in mechanochemical processes. A wide-range synthesis prospect is given by identifying between known solvents those with less negative environmental impact. This book concerns the analysis of the advantages of using compressed CO2 to produce not only improved materials in a better way, but also new nanoproducts. Recovering and using CO2, otherwise released into the atmosphere, is a means of recycling emissions resulting from other users. The use of supercritical CO2 is a complex option from a conceptual point of view requiring enhanced technical preparation.



Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds

Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds Author Jose L. Martinez
ISBN-10 1420006517
Release 2007-11-28
Pages 424
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Enhanced concern for the quality and safety of food products, increased preference for natural products, and stricter regulations on the residual level of solvents, all contribute to the growing use of supercritical fluid technology as a primary alternative for the extraction, fractionation, and isolation of active ingredients. As a solvent-free process, supercritical fluid technology is a popular answer for the functional foods and nutraceutical sector, one of the fastest growing consumer driven markets. Recent advancements in the technology and increased utilization of the process demand a comprehensive, single-source review of current and future trends in supercritical fluid technology. Compiling contributions from international experts in the field, Supercritical Fluid Extraction of Nutraceuticals and Bioactive Compounds presents the state-of-the-science in the extraction and fractionation of bioactive ingredients by supercritical fluids. Focusing on implemented industrial processes and trends, it reviews the fundamentals of the technology and examines the economics of supercritical fluid extraction systems and processes. Over the course of twelve chapters, the book presents the supercritical fluid extraction processes in edible oils, including fish oils and specialty oils; herbs, such as Latin American plants and those used in Traditional Chinese Medicine; algae; spices; antioxidants and essential oils; as well as the processing of micro and nano-scale materials by supercritical fluid technology. Each chapter covers the major active components in the target material, including chemical, physical, nutritional, and pharmaceutical properties; an analysis of the specific supercritical fluid process used; a comparison of traditional processing methods versus supercritical fluid technology; and a set of conclusions with supporting data and insight.



Supercritical Fluids

Supercritical Fluids Author Y. Arai
ISBN-10 3540412484
Release 2002
Pages 446
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New processing methods govern the progress in physical-chemical technology. The potential of supercritical fluid methods is presented in a comprehensive way in this book. On the basis of a careful discussion of physical and chemical principles, the application of this method in process technology is demonstrated.



Methods for environmental trace analysis

Methods for environmental trace analysis Author John R. Dean
ISBN-10 0470844213
Release 2003-03-07
Pages 259
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Provides the basic skills and information required to prepare an environmental sample for analysis. Divided into two sections, i.e. Inorganic Analysis and Organic Analysis, this book covers selected techniques, principally atomic spectroscopy and chromatography. Using flow diagrams to augment the experimental information, it highlights the most appropriate methods and the likely results. Detailed experimental information provided in an easy-to-follow style with illustrations Describes the specific sample preparation approaches necessary to analyse a particular sample type Discussion of selected literature sources highlights the most appropriate methods and the likely results obtained



Additives in Polymers

Additives in Polymers Author Jan C. J. Bart
ISBN-10 9780470012055
Release 2005-04-08
Pages 836
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This industrially relevant resource covers all established and emerging analytical methods for the deformulation of polymeric materials, with emphasis on the non-polymeric components. Each technique is evaluated on its technical and industrial merits. Emphasis is on understanding (principles and characteristics) and industrial applicability. Extensively illustrated throughout with over 200 figures, 400 tables, and 3,000 references.



Vibrational dynamics in supercritical fluids and the collisionless gas phase

Vibrational dynamics in supercritical fluids and the collisionless gas phase Author Dan J. Myers
ISBN-10 STANFORD:36105025867628
Release 2001
Pages 520
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Vibrational dynamics in supercritical fluids and the collisionless gas phase has been writing in one form or another for most of life. You can find so many inspiration from Vibrational dynamics in supercritical fluids and the collisionless gas phase also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Vibrational dynamics in supercritical fluids and the collisionless gas phase book for free.



Advanced Applications of Supercritical Fluids in Energy Systems

Advanced Applications of Supercritical Fluids in Energy Systems Author Chen, Lin
ISBN-10 9781522520481
Release 2017-03-24
Pages 682
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Supercritical fluids have been utilized for numerous scientific advancements and industrial innovations. As the concern for environmental sustainability grows, these fluids have been increasingly used for energy efficiency purposes. Advanced Applications of Supercritical Fluids in Energy Systems is a pivotal reference source for the latest academic material on the integration of supercritical fluids into contemporary energy-related applications. Highlighting innovative discussions on topics such as renewable energy, fluid dynamics, and heat and mass transfer, this book is ideally designed for researchers, academics, professionals, graduate students, and practitioners interested in the latest trends in energy conversion.



Encyclopedia of analytical science

Encyclopedia of analytical science Author Alan Townshend
ISBN-10 UOM:39015034248388
Release 1995
Pages 6059
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Encyclopedia of analytical science has been writing in one form or another for most of life. You can find so many inspiration from Encyclopedia of analytical science also informative, and entertaining. Click DOWNLOAD or Read Online button to get full Encyclopedia of analytical science book for free.



Hyphenated Techniques in Supercritical Fluid Chromatography and Extraction

Hyphenated Techniques in Supercritical Fluid Chromatography and Extraction Author K. Jinno
ISBN-10 0080858619
Release 1992-07-21
Pages 328
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This is the first book to focus on the latest developments in hyphenated techniques using supercritical fluids. The advantages of SFC in hyphenation with various detection modes, such as FTIR, MS, MPD and ICP and others are clearly featured throughout the book. Special attention is paid to coupling of SFE with GC or SFC. In this edited volume, chapters are written by leading experts in the field. The book will be of interest to professionals in academia, as well as to those researchers working in an industrial environment, such as analytical instrumentation, pharmaceuticals, agriculture, food, petrochemicals and environmental.