Commentary - (2021) Volume 8, Issue 3

Chromatography and their Separation Techniques, Molecular Sizes
David S Hage*
Department of Chemistry, University of Nebraska, USA
*Correspondence: David S Hage, Department of Chemistry, University of Nebraska, USA, Email:

Received: 02-Dec-2021;Accepted Date: Dec 16, 2021; Published: 23-Dec-2021, DOI: -


Chromatography is the most widely used technique that involves the separation,identification,of component mixture for both qualitative and quantitative analysis. Proteins can be separated based on size,shape,and total charge,hydrophobic groups present on the surface .The purpose of applying chromatography is a method of quantitative nalysis of separation based of two phases 1.stationary phase phase.the type of interaction between stationary phase and mobile phase and the substances contained in the mixture is the most effective component on separation molecules from each other.Ion exchange chromatography is based on elecrostatis interaction between two charged protein groups and a solid support matrix .matrix has an ion load opposite to that of the protein to be separated .proteins are separated by changing ph concentration of ion salts or ionic strength of buffer solution .positively charged ion exchange matrices are called anion exchange matrices and they will absorb negativey charged proteins incase if the matrices bound with negatively charged groups are called cation exchange matrices and absorb positively charged proteins The principle involved in this method is to use dextran containing materials to separate macro molecules based on their differences in molecular sizes .This process is basically used to determine the moleculasr weights of proteins and to decrease the salt concentrations of protein solutions .In a gel permeation column stationary phase consists of inert molecules with small pores the solution containing molecules are flowing with a flow rate through the column.molecules larger than pores cannot permeate into gel particles and are retained within the particular area .Larger molecules pass through the pores and move rapidly inside the column .This technique is most widely used for the purification of enzymes harmones ,antibiotics,nucleic acids,and specific proteins.A ligand which can make a complex with specific protein binds with the filling material of the column .By using this chromatography we can perform the structural and functional analysis of many molecules within a short time.This technique yields perfect results in separation and identification of amino acids ,carbohydrates, lipids, nucleic acids, proteins, steroids, and other biologically active hplc mobile phase passes through columns under 10-400 atmostpheric pressure ,and with a high flow rate.In this technique use of small particles and application of high pressure pump Chromatographic techniques were used to separate substances based on the colour and pigments .With time its application area was extended considerably .nowadays chromatography is widely accepted effective separation technique. chromatography is one of the useful separation and determination method .column chromatography is a protein purification method realised based on the characteristic features of proteins.Besides these methods hplc has many features in its higher sensitivity ,rapid turnover rate,its use as a quantitative method can purify amino acids, proteins, nucleic acids, hydrocarbons, carbohydrates, drugs, antibiotics, and steroids. There are a few fluid chromatography strategies applied in food investigation, in particular paper chromatography, dainty layer chromatography (TLC) (both of these strategies might be alluded to as planar chromatography), and section fluid chromatography, all of which include a fluid versatile stage and either a strong or a fluid fixed stage. Nonetheless, the actual type of the fixed stage is very divergent for each situation. Detachment of the solutes depends on their physicochemical connections with the two stages.



Conflict Of Interest Statement

Authors declare they have no conflict of interest with this manuscript.

Copyright: This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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