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Saturday, July 11, 2020 | History

2 edition of Ion-exchange resins as stationary phase in reactive chromatography found in the catalog.

Ion-exchange resins as stationary phase in reactive chromatography

Tuomo Sainio

Ion-exchange resins as stationary phase in reactive chromatography

by Tuomo Sainio

  • 29 Want to read
  • 26 Currently reading

Published by Lappeenranta University of Technology in Lappeenranta .
Written in English

    Subjects:
  • Ion exchange chromatography.,
  • Ion exchange resins.

  • Edition Notes

    StatementTuomo Sainio.
    SeriesActa Universitatis Lappeenrantaensis -- 218
    ContributionsLappeenrannan teknillinen korkeakoulu.
    The Physical Object
    Pagination175 p. :
    Number of Pages175
    ID Numbers
    Open LibraryOL20280364M
    ISBN 109522140716

      Figure: Ion exchange chromatography. Steps of Ion exchange chromatography. A column packed with charged resin that can either be positively charged or negatively charged is taken as the stationary phase. The mixture with the charged particles is then passed down the column where the charged molecules bind to the oppositely charged resins. Ion exchange adsorbent (stationary phase) is packed into a column, and the column is pre-equilibrated with the buffer of identical pH and similar ionic strength as protein mixture (preferably the same buffer as protein mixture). Protein mixture is applied onto the column.

      Ion exchange chromatography, with suppressed conductivity detection, has been widely used for the separation of different organic and inorganic ions,42 In suppressed IC, after ions are. In this application a strong acid cation exchange resin in the hydrogen form is the stationary phase and usually a dilute mineral acid solution is the mobile phase. Since anionic species are being separated on a cation exchanger it is clear that some process other than ion exchange is involved.

      Ion exchange chromatography is an interesting type of column chromatography.. As you know, the Chromatography is a process of the separation of molecules from a mixture. This separation is done based on the differences in the adsorption coefficient or partition coefficient of the sample with the stationary phase. USA US09/, USA USA US A US A US A US A US A US A US A US A US A Authority US United States Prior art keywords cation crown crown ether exchange functional groups Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.


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Ion-exchange resins as stationary phase in reactive chromatography by Tuomo Sainio Download PDF EPUB FB2

Get this from a library. Ion-exchange resins as stationary phase in reactive chromatography. [Tuomo Sainio; Lappeenranta teknillinen yliopisto.]. Stationary phase (or resin) composition. There are a number of different resins or stationary phases that have been developed for use in IC.

The main classes of substances used are: modified organic polymer resins, modified silica gels, inorganic salts, glasses, zeolites, metal oxides, and cellulose most commonly used resins are the silica gels and polymer resins.

In ion-exchange chromatography (IEC) the stationary phase is a cross-linked polymer resin, usually divinylbenzene cross-linked polystyrene, with covalently attached ionic functional groups (see Figure and Table ). Ion Exchange Chromatography Resin Selection. Ion exchange chromatography resins are composed of positively or negatively charged functional groups that are covalently bound to a solid matrix.

Common matrices are cellulose, agarose, polymethacrylate, polystyrene, and polyacrylamide. The latter three matrices allow higher flow rates. Ion exchange chromatography uses a charged stationary phase to separate charged compounds including anions, cations, amino acids, peptides, and proteins.

In conventional methods the stationary phase is an ion exchange resin that carries charged functional groups that interact with oppositely charged groups of the compound to retain. Ion-exchange resins as stationary phase in reactive chromatography Sainio, Tuomo () Aineistoon ei liity tiedostoja.

Väitöskirja. Sainio, Tuomo. Dynamic behavior of bothisothermal and non-isothermal single-column chromatographic reactors with an ion-exchange resin as the stationary phase was investigated. The reactor performance was. Ion-exchange resins as stationary phase in reactive chromatography.

By Tuomo Sainio. Abstract. Dynamic behavior of bothisothermal and non-isothermal single-column chromatographic reactors with an ion-exchange resin as the stationary phase was investigated. The reactor performance was interpreted by using results obtained when studying the Author: Tuomo Sainio. In special cases, such as esterifications, the same ion exchange resin can act as catalyst for the reaction as well as adsorbent for the separation (Mazzotti et al.

In general different. The resin phase is the solid resin network and functionlized groups, which can be considered to be a semipermeable ion-exchange membrane separating the flowing mobile phase from the stationary occluded liquid inside the resin.

The three phases are illustrated schematically in Figure 5. Sign in to download full-size image Figure 5. Ion-exchange chromatography which is designed specifically for the separation of differently charged or ionizable compounds comprises from mobile and stationary phases similar to other forms of column based liquid chromatography techniques [ 9 - 11 ].

Mobil phases consist an aqueous buffer system into which the mixture to be resolved. Anionic Exchange Chromatography should be carried out with cationic buffers and vice versa because buffer ion will indulge in ion exchange, which will be of no use.

Ion Exchangers: There are three classes of ion exchangers 1. Resins: Ion exchange resins are used for the separation of small molecules 2. Affinity chromatography.

Affinity chromatography is a general term which applies to a wide range of chromatographic media. It can be basically thought of as some inert resin to which has been attached some compound which has a specific affinity for your protein of interest.

Thus, a specific antibody attached to an inert resin would be a type of affinity chromatography. Start studying Ion Exchange Chromatography. Learn vocabulary, terms, and more with flashcards, games, and other study tools.

Search. attraction between solute ions and charged sites bound to the stationary phase. anion exchange resin, containing ammonium groups (NR3).

This book focuses on the plate-equilibrium theory of chromatography, which is less difficult theoretically than the mass-transfer theory. Organized into 11 chapters, this volume begins with an overview of the earliest recorded application of ion exchange.

This text then examines how high temperature affects ion-exchange resins. Depending on the mobile phase, the reactive chromatography can be distinguished between gas The stationary phase may be a liquid coated on a solid support or a liquid retained by centrifugal force [5].

inversion catalyzed by fixed beds of acid form ion exchange resin. For this study reactor was used 1 inch in diameter flow. Conventional ion-exchange chromatography separates molecules by adsorbing proteins onto the ion-exchange resins that are then selectively eluted by slowly increasing the ionic strength (this disrupts ionic interactions between the protein and column matrix competitively) or by altering the pH (the reactive groups on the proteins lose their charge).

quantitative measure of the affinity of the ion in solution for the ion in stationary phase. General trends for selectivity coefficient very pure water can be produced by passing through multiple ion exchange resins - ion concentrations ~ 1 ppb A type of chromatography in which solute molecules penetrate voids in the stationary phase.

Sulfonic poly(styrene- co -divinylbenzene) ion-exchange resins are commonly employed as supported acid catalysts or as selective sorbents in a number of different applications. phase while the matrix, or stationary phase, is generally an inert solid or gel and may be Ion exchange chromatography (or ion chromatography, IC) is a subset of liquid chromatog‐ Step 1: The eluent loaded onto the column displaces any anions bonded to the resin and saturates the resin surface with the eluent anion.

DEFINITION Ion exchange chromatography is the process by which a mixture of similar charged ions can be separated by using an ion-exchange resin which exchanges ions according to their relative affinities.

The most common properties of all ion exchangers are: They are almost insoluble in water and organic solvents such as benzene,carbon. The major types include normal phase chromatography, reverse phase chromatography, ion exchange, size exclusion chromatography, and affinity chromatography.

Normal-phase Chromatography In this method the columns are packed with polar, inorganic particles and a nonpolar mobile phase is used to run through the stationary phase (Table \(\PageIndex.The solid inert support The stationary liquid phase Column thermostatting.

Batch operation with an ion exchange resin Column operation with an ion exchange. C exchange equilibrium Basis for separations Separation of organic mixtures. C niques of ion exchange chromatography Separation factor Factors Reviews: 3.

In this method, the resin is made in to slurry by using distilled water and is placed in column chromatography. The ratio of the height to diameter of the column is usually or The column is packed with fine ion exchange resin.

The particle size mesh or mesh is used for analytical separations. The resin should be shaken.