Download or read book Characterization of Solute solvent Interactions in Gas liquid Chromatography and the Application of Multivariate Analysis to the Classification of Stationary Phase Selectivity written by Theophilus O. Kollie and published by . This book was released on 1992 with total page 1418 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1993-06 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ACS Directory of Graduate Research 1993 written by American Chemical Society. Committee on Professional Training and published by . This book was released on 1993 with total page 1700 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Chromatography written by and published by . This book was released on 1995 with total page 986 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Excerpta Medica written by and published by . This book was released on 1991 with total page 646 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Characterization of Solutes and Solvent Phases written by Michael H. Abraham and published by . This book was released on 1987 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: The characterization of five gas liquid chromatographic stationary phases, using retention data obtained by Laffort and co-workers for 240 solutes, has been carried out by the method of multiple linear regression analysis. Relative gas liquid partition coefficients for as many solutes as possible were correlated against various combinations of parameters.
Download or read book Highlights in Solute Solvent Interactions written by Wolfgang Linert and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most organic molecules retain their integrity when dissolved, and even though in such cases the effects exerted by solvents are, in the language of the coordination chemist, of the "outer sphere" kind, the choice of solvent can be critical to the successful outcome of an operation or preparation. Solubilities of reactants and products must be taken into account, and even if the organic principals in the reactions retain their integrity, many of the reagents are electrolytes, and their state of aggregation will affect their reactivity. In testifying to the importance of understanding solute-solvent interactions I draw attention to a large class of inorganic species for which the involvement in the chemical and physical properties by the solvent is even more deeply seated. It is comprised by the large body of metal atoms in low oxidation states for which solvent molecules intervene as reagents. At the same time, because the ions carry charges, the effects arising from outer sphere interactions are usually greater than they are for neutral molecules. To cite an example: when FeCb(s) is dissolved in water to form a dilute - say O. OlO- solution there is a complete reorganization of the coordination sphere of the cation. Whereas in the solid each cation is surrounded by six chloride ions, in the solution the dominant form is [Fe(H20)6]3+ followed by [Fe(H20)sCI]2+, [Fe(H20)4CI2]+, etc. in rapidly decreasing abundance.
Download or read book Modern Practice of Gas Chromatography written by Robert L. Grob, PhD and published by John Wiley & Sons. This book was released on 2004-08-04 with total page 1059 pages. Available in PDF, EPUB and Kindle. Book excerpt: The bible of gas chromatography-offering everything the professional and the novice need to know about running, maintaining, and interpreting the results from GC Analytical chemists, technicians, and scientists in allied disciplines have come to regard Modern Practice of Gas Chomatography as the standard reference in gas chromatography. In addition to serving as an invaluable reference for the experienced practitioner, this bestselling work provides the beginner with a solid understanding of gas chromatographic theory and basic techniques. This new Fourth Edition incorporates the most recent developments in the field, including entirely new chapters on gas chromatography/mass spectrometry (GC/MS); optimization of separations and computer assistance; high speed or fast gas chromatography; mobile phase requirements: gas system requirements and sample preparation techniques; qualitative and quantitative analysis by GC; updated information on detectors; validation and QA/QC of chromatographic methods; and useful hints for good gas chromatography. As in previous editions, contributing authors have been chosen for their expertise and active participation in their respective areas. Modern Practice of Gas Chromatography, Fourth Edition presents a well-rounded and comprehensive overview of the current state of this important technology, providing a practical reference that will greatly appeal to both experienced chomatographers and novices.
Download or read book Stationary Phases in Gas Chromatography written by G. E. Baiulescu and published by Elsevier. This book was released on 2013-10-22 with total page 377 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stationary Phases in Gas Chromatography is a four-chapter book that begins with a description of chromatographic column, including its retention parameters; mobile and stationary phases; optimization of its process; and types of column in gas chromatography. Subsequent chapter focuses on the retention data and thermodynamic variables in the technique. The last two chapters report the different types of stationary phases in gas chromatography, as well as their selectivity.
Download or read book Solvent Modulation in Liquid Chromatography written by Jon Henry Wahl and published by . This book was released on 1991 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantitative Treatments of Solute Solvent Interactions written by P. Politzer and published by . This book was released on 1994-12-07 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt: The primary objective of this volume, the first in a new series entitled Theoretical and Computational Chemistry, is to survey some effective approaches to understanding, describing and predicting ways in which solutes and solvents interact and the effects they have upon each other. The treatment of solute/solvent interactions that is presented emphasizes a synergism between theory and experiment. Data obtained experimentally are used as a basis for developing quantitative theoretical models that permit the correlation and interpretation of the data, and also provide a predictive capability. The latter being of course a key motivation for these efforts. Linear solvation energy relationships have been quite successful in this respect and accordingly receive considerable attention. Other effective approaches, including computational ones, are also being pursued, and are discussed in several chapters. This is an area that is continually evolving, and it is hoped that the present volume will convey a sense of its dynamic nature.
Download or read book Dynamics of Chromatography written by J. Calvin Giddings and published by CRC Press. This book was released on 2017-12-19 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt: This classic and bestselling landmark publication, originally published in 1965, examines the dynamic mechanisms, fundamental principles, and physical properties of various chromatographic procedures. It offers methods to characterize, identify, and predict chromatographic phenomena - providing strategies to select the most appropriate separation tools and techniques for specific applications in chemistry, physics, biology, and forensic and environmental science. Written by a world-renowned pioneer in the field, Dynamics of Chromatography contains many worked equations and real-world examples in gas and liquid chromatography. It includes numerous schematic figures for visualization of key concepts, introduces the means to control migration rate differences and zone spreading, and presents a detailed random-walk model for clarification of column processes. It also analyzes flow, diffusion, and kinetic events, stresses the link between theory and practice, and summarizes mathematical quantities and parameters.
Download or read book Interactions Among the Stationary Phase the Mobile Phase and the Solute in Liquid Chromatographic Systems written by Zengbiao Li and published by . This book was released on 1996 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Solute solvent Interactions written by Johannes Francois Coetzee and published by . This book was released on 1969 with total page 676 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Exploring the Retention Characteristics of Stationary Phases and Their Application in Two dimensional High Performance Liquid Chromatography written by Paul G. Stevenson and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Phenyl type stationary phases have the ability to undergo [pi]-[pi] interactions with aromatic compounds and have the potential to take advantage of this particular sample dimension in 2DHPLC. This thesis examined a series of phenyl type stationary phases that were synthesised and packed in-house, containing systematic changes in the length of the chain binding the aromatic ring to the silica support (between 0 and 4 carbon atoms). The stationary phase was characterised and tested to determine retention characteristics with both linear and non-linear chromatographic measurements. The linear measurements involved a selectivity study with homologues of linear polycyclic aromatic hydrocarbons and n-alkylbenzenes to determine the aromatic and methylene selectivities, respectively.
Download or read book Practical Gas Chromatography written by Katja Dettmer-Wilde and published by Springer. This book was released on 2014-11-05 with total page 904 pages. Available in PDF, EPUB and Kindle. Book excerpt: Gas chromatography continues to be one of the most widely used analytical techniques, since its applications today expand into fields such as biomarker research or metabolomics. This new practical textbook enables the reader to make full use of gas chromatography. Essential fundamentals and their implications for the practical work at the instrument are provided, as well as details on the instrumentation such as inlet systems, columns and detectors. Specialized techniques from all aspects of GC are introduced ranging from sample preparation, solvent-free injection techniques, and pyrolysis GC, to separation including fast GC and comprehensive GCxGC and finally detection, such as GC-MS and element-specific detection. Various fields of application such as enantiomer, food, flavor and fragrance analysis, physicochemical measurements, forensic toxicology, and clinical analysis are discussed as well as cutting-edge application in metabolomics is covered.
Download or read book On line LC NMR and Related Techniques written by Klaus Albert and published by John Wiley & Sons. This book was released on 2003-02-14 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book gives a comprehensive overview of the basis and the current applications of LC-NMR and related techniques. It deals with the practical aspects of the hardware and software set-up for a successful performance of on-line coupling experiments. It covers the solution of real-word problems from the fields of biomedical, pharmaceutical and environmental studies as well as the analysis of natural products and polymeric compounds. Thus guidelines for an efficient application of the powerful hyphenated technique LC-NMR in combination with LC-MS are presented. Besides LC-NMR, important techniques such as the on-line coupling of gel permeation chromatography and supercritical fluid chromatography, together with 1H NMR spectroscopy, are described in detail. Fascinating further aspects, such as the application of capillary separation techniques either in the single or parallel detection mode, together with the possibilities of direct 13C monitoring of chromatographic events, are also discussed. Key features include: * Up-to-date information on the theoretical and experimental methodology * Coverage of applications in biomedical, pharmaceutical and natural product analysis, as well as environmental polymer and related hyphenated techniques * Information appropriate for researchers in organic, pharmaceutical and medical chemistry Overall, this book is a requirement for all researchers and staff members dealing with structure elucidation problems in separation science.
