Larry T. Taylor – författare
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2 produkter
2 produkter
1 832 kr
Skickas inom 5-8 vardagar
Clear, Practical Coverage of an Important Reemerging TechnologySupercritical Fluid Extraction provides a clear, practical, step-by-step introduction to a sample preparation method that helps laboratories reduce or eliminate the use of halogenated solvents, extract samples more quickly and efficiently, and improve the accuracy of their results. By encouraging a deliberate, systematic approach to supercritical fluid extraction (SFE) methods and techniques, this book enables scientists and technicians to avoid disappointing results and erroneous conclusions and develop reliable guidelines for using this versatile technology. It demonstrates how to make the most of a process that is highly reproducible, fast, and quantitative at sub-ppb levels; preserves the chemical integrity of the analyte to be extracted; and yields a concentrated sample solution that can be easily manipulated. Topics covered include: Properties of supercritical fluidsFunctional group solubility in supercritical fluidsCollection efficiency in off-line SFEExtraction strategiesApplications of analytical SFEFor analytical chemists, technicians, and laboratory managers, this book is the key to a technology that can make every sample extraction and analysis cleaner, more efficient, and more reliable.
Modern Supercritical Fluid Chromatography
Carbon Dioxide Containing Mobile Phases
Inbunden, Engelska, 2020
1 325 kr
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Explains why modern supercritical fluid chromatography (SFC) is the leading "green" analytical and purification separations technology.Modern supercritical fluid chromatography (SFC) is the leading method used to analyze and purify chiral and achiral chemical compounds, many of which are pharmaceuticals, pharmaceutical candidates, and natural products including cannabis-related compounds. This book covers current SFC instrumentation as it relates to greater robustness, better reproducibility, and increased analytical sensitivity.Modern Supercritical Fluid Chromatography: Carbon Dioxide Containing Mobile Phases covers the history, instrumentation, method development and applications of SFC. The authors provided readers with an overview of analytical and preparative SFC equipment, stationary phases, and mobile phase choices. Topics covered include: Milestones of Supercritical Fluid Chromatography; Physical Properties of Supercritical Fluids; Instrumentation for SFC; Detection in SFC; Achiral SFC Method Development; Chiral SFC Method Development; and Preparative Scale SFC. The book also includes highlights of modern applications of SFC in the final chapters—namely pharmaceuticals, consumer products, foods, polymers, petroleum-related mixtures, and cannabis—and discusses the future of SFC. Provides a clear explanation of the physical and chemical properties of supercritical fluids, which gives the reader a better understanding of the basis for improved performance in SFC compared to HPLC and GCDescribes the advantages of SFC as a green alternative to HPLC and GC for the analysis of both polar, water-soluble, and non-polar analytesDetails both achiral and chiral SFC method development, including modifiers, additives, the impact of temperature and pressure, and stationary phase choicesDetails why SFC is the premier modern preparative chromatographic technique used to purify components of mixtures for subsequent uses, both from performance and economic perspectivesCovers numerous detectors, with an emphasis on SFC-MS, SFC-UV, and SFC-ELSD (evaporative light scattering detection)Describes the application of SFC to numerous high-value application areasModern Supercritical Fluid Chromatography: Carbon Dioxide Containing Mobile Phases will be of great interest to professionals, students, and professors involved in analytical, bioanalytical, separations science, medicinal, petroleum, and environmental chemistries. It will also appeal to pharmaceutical scientists, natural-product scientists, food and consumer-products scientists, chemical engineers, and managers in these areas.