Selektivität von oberflächlich sulfonierten Harzaustauschern

Skafi, Mourad; Lieser, Κ. H.

doi:10.1007/bf00470983

Cited by 11 publications

(2 citation statements)

References 5 publications

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“…So far, in ion chromatography, some non-conventional types of ion exchangers, such as superficial [112][113][114], supported [115,116] and pellicular resins [II7,118], with capacity values from 10 to 1000 times lower than those of conventional resins have been used [119]. However, the preparation procedures of these ion-exchange materials is much more complex than those of conventional resins and incomparably more complex than the preparation of SISIE.…”

Section: Aminecarboxylate Interaction Of Amino Acid Moleculesmentioning

confidence: 99%

Surface Impregnated Sulfonate Ion Exchangers: Preparation, Properties and Application

Muraviev

1998

Solvent Extraction and Ion Exchange

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This paper reviews the results obtained by studying Surface Impregnated Sulfonate Ion Exchangers (SISIE) obtained by modification of macroporous or gel polysterene-divinylbenzene polymers with toluene solutions of dinonylnaphthalene sulfonic acids. Capacities of SISIE of the first type are directly proportional to the concentration of the modifying solution and to the specific surface area of the matrix. Capacities of gel SISIE are much less than those of macroporous samples and depend on the crosslinking of the matrix.Stabilization of SISIE capacity and improvement of their kinetic properties can be achieved using "wet drying " technique. Successive impregnation of the same SISIE sample may be used to increase the capacity of the resin. The ionexchange properties of SISIE are mainly determined by their micellar structure which also defines the areas of possible applications of these ion-exchange materials such as, e.g. ion chromatography and some others Several models have been successfully applied to describe the features of ion exchange processes on SISIE. Application of SISIE as convenient model systems to study aminecarboxylate interaction of amino acid molecules is illustrated by suspension effects measured in SISIE-zwitterlyte and SISIE-HCI suspensions and by the results obtained by the laser-acoustic study of these systems. ') Present address:

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Section: Aminecarboxylate Interaction Of Amino Acid Moleculesmentioning

confidence: 99%

Surface Impregnated Sulfonate Ion Exchangers: Preparation, Properties and Application

Muraviev

1998

Solvent Extraction and Ion Exchange

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“…Nuclear magnetic resonance studies of ion-exchange resins yielded information about the amount of water imbibed by the resin (114,468), the hydration of counter-ions and ion association (114,464), the rate of exchange of water between the resin interior and exterior (116), and the rate of exchange of ions between resin particles in contact (150). The chemical shift of imbibed water is simply related to the water ¡polymer ratio and can be used to distinguish between pore water and imbibed water in macroporous resins (161).…”

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confidence: 99%

Ion exchange

Walton¹

1972

Anal. Chem.

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West European journals directly, in some cases through December 1971. We very much regret that the extensive Russian and Japanese literature had to be followed through abstracts or translations. Many 1969 publications are included; we have coordinated them with our 1970 review to avoid duplication. We have not attempted to include every reference to ion exchange in chemical analysis, and have deliberately passed over many publications that seemed to add only minor details to well-known procedures. As before, we have included a number of references to the basic physical chemistry of ion exchange.A notable trend over the past two years has been an increase in applications to organic compounds and compounds of biochemical interest. Interactions with ion-exchanging materials that do not depend on electrostatic forces are being consciously exploited and better understood. Many of the chromatographic separations of organic compounds listed below are not, in the strict sense of the word, ion-exchange separations, though they use ion-exchanging polymers and inorganic mate-

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High‐Performance Ion‐Exchange Chromatography with Narrow‐Bore Columns: Rapid Analysis of Nucleic Acid Constituents at the Subnanomole Level

Horváth¹

1973

Methods of Biochemical Analysis

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Selektivität von oberflächlich sulfonierten Harzaustauschern

Cited by 11 publications

References 5 publications

Surface Impregnated Sulfonate Ion Exchangers: Preparation, Properties and Application

Surface Impregnated Sulfonate Ion Exchangers: Preparation, Properties and Application

Ion exchange

High‐Performance Ion‐Exchange Chromatography with Narrow‐Bore Columns: Rapid Analysis of Nucleic Acid Constituents at the Subnanomole Level

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