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  2. Elution - Wikipedia

    en.wikipedia.org/wiki/Elution

    The "elution time" of a solute is the time between the start of the separation (the time at which the solute enters the column) and the time at which the solute elutes. In the same way, the elution volume is the volume of eluent required to cause elution. Under standard conditions for a known mix of solutes in a certain technique, the elution ...

  3. Chromatography - Wikipedia

    en.wikipedia.org/wiki/Chromatography

    Thin-layer chromatography is used to separate components of a plant extract, illustrating the experiment with plant pigments which gave chromatography its name. In chemical analysis, chromatography is a laboratory technique for the separation of a mixture into its components.

  4. Column chromatography - Wikipedia

    en.wikipedia.org/wiki/Column_chromatography

    Column chromatography in chemistry is a chromatography method used to isolate a single chemical compound from a mixture. Chromatography is able to separate substances based on differential absorption of compounds to the adsorbent; compounds move through the column at different rates, allowing them to be separated into fractions.

  5. Expanded bed adsorption - Wikipedia

    en.wikipedia.org/wiki/Expanded_bed_adsorption

    Elution of the adsorbed proteins was commonly performed with the eluent flow in the reverse direction; that is, as a conventional packed bed, in order to recover the adsorbed solutes in a smaller volume of eluent. However, a new generation of EBA columns has been developed, which maintain the bed in the expanded state during this phase ...

  6. Anion-exchange chromatography - Wikipedia

    en.wikipedia.org/wiki/Anion-exchange_chromatography

    Anion exchange resins will bind to negatively charged molecules, displacing the counter-ion. Anion exchange chromatography is commonly used to purify proteins, amino acids, sugars/carbohydrates and other acidic substances [3] with a negative charge at higher pH levels. The tightness of the binding between the substance and the resin is based on ...

  7. High-performance liquid chromatography - Wikipedia

    en.wikipedia.org/wiki/High-performance_liquid...

    Displacement chromatography has advantages over elution chromatography in that components are resolved into consecutive zones of pure substances rather than "peaks". Because the process takes advantage of the nonlinearity of the isotherms, a larger column feed can be separated on a given column with the purified components recovered at ...

  8. Affinity chromatography - Wikipedia

    en.wikipedia.org/wiki/Affinity_chromatography

    Affinity chromatography is a ... In a typical affinity chromatography experiment, ... Target biomolecules may then be removed by applying a so-called elution buffer ...

  9. Ion chromatography - Wikipedia

    en.wikipedia.org/wiki/Ion_chromatography

    Ion chromatography (or ion-exchange chromatography) is a form of chromatography that separates ions and ionizable polar molecules based on their affinity to the ion exchanger. [1] It works on almost any kind of charged molecule —including small inorganic anions, [ 2 ] large proteins , [ 3 ] small nucleotides , [ 4 ] and amino acids .