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Ion-exchange chromatography of nitrogen compounds
Journal of Chromatography A, 1974Abstract The review presents a systematic survey of ion-exchange methods for the analysis of nitrogen-containing compounds. The main interest is in cation-exchange separations of amines, nitrogen-containing bases and related compounds by elution with solutions of acids, buffers and salts and aqueous organic solvents and in highspeed chromatography of
Pavel Jandera, Jaroslav Churáček
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1979
Ion exchangers consist of an insoluble framework (matrix) containing covalently bonded dissociable functional groups at accessible sites. These are either sulfonic acid groups or, less importantly, carboxyl groups in the case of cation exchangers, and tertiary amino or quaternary ammonium groups for anion exchangers.
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Ion exchangers consist of an insoluble framework (matrix) containing covalently bonded dissociable functional groups at accessible sites. These are either sulfonic acid groups or, less importantly, carboxyl groups in the case of cation exchangers, and tertiary amino or quaternary ammonium groups for anion exchangers.
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Electromodulated ion exchange chromatography
Analytical Chemistry, 1986On montre que les proprietes de la colonne peuvent etre controlees par l'intermediaire de l'etat electrochimique de la ...
Charles R. Martin, Amiya R. Ghatak-Roy
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Ion-Exchange Chromatography of Proteins
2003Ion-exchange chromatography is the most widely used technique in protein chromatography (1). This is because it is nearly always possible to develop successful ionexchange separations for proteins, and the materials required are relatively inexpensive.
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Ion exchange chromatography of antibody fragments
Biotechnology and Bioengineering, 2006AbstractEffects of pH and conductivity on the ion exchange chromatographic purification of an antigen‐binding antibody fragment (Fab) of pI 8.0 were investigated. Normal sulfopropyl (SP) group modified agarose particles (SP Sepharose™ Fast Flow) and dextran modified particles (SP Sepharose XL) were studied.
James M. Van Alstine +6 more
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Ion-exchange chromatography of soybean saponins
Journal of Chromatography A, 1971Abstract Resolution of soybean saponins on Dowex-1 is influenced by resin particle size, flow rate, temperature and eluting agent. Separations were good when columns of −400 mesh resin were operated at 50° and eluted at slow flow rates either acetic or propionic acid. A linear gradient of 1.5 to 3 N propionic acid separated the saponins into twelve
W. J. Wolf, Betty W. Thomas
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Adsorption, Chromatography, Ion Exchange
2011Adsorption is the loading of solid surfaces with substances present in a surrounding fluid phase or, in other words, it is a surface effect between a solid and a fluid phase. Sometimes molecules of the fluid phase are not only fixed on the surface but can additionally enter the bulk of the nonporous solid phase according to a volume effect.
Alfons Mersmann +2 more
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Chromatography of xanthines on ion-exchange resins
Journal of Chromatography A, 1979Short columns of a 4% crosslinked cation-exchange resin gave good chromatography of xanthines, including caffeine, theophylline and hypoxanthine, and related polar aromatic compounds. Elution volumes and sequences can be modified by changing pH, solvent composition and resin counter-ion.
G.Alan Eiceman +2 more
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Analysis by Chromatography and Ion Exchange
Nature, 1954Inorganic Chromatography By Orsino C. Smith. Pp. x + 134 + 5 plates. (New York: D. Van Nostrand Company, Inc.; London: Macmillan and Co., Ltd., 1953.) 37s. 6d. net. Chromatographic Methods of Inorganic Analysis With Special Reference to Paper Chromatography. By Dr. F. H. Pollard and Dr. J. F. W. McOmie. Pp. viii + 192 + 4 plates.
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