Size exclusion chromatography (SEC) separates components of a sample on the basis of their molecular size. Differential exclusion or inclusion of the molecules is achieved via filtration through a gel ...

Exclusion chromatography can be used to separate molecules on the basis of size 1,2. The technique described here, which uses gel filtration to separate high-molecular-weight DNA from smaller ...

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IN a recent paper 1, Porath and Flodin have described a simple and rapid method for the fractionation of water-soluble substances. In this method, which they call gel filtration, aqueous solutions of ...

Tangential flow filtration (TFF) is a useful method for separating molecules or particles in liquid solution by size and enables both concentration and the ability to change buffer composition. 1 TFF ...

Protein drugs feature significant advantages over small molecule therapeutics, including low toxicity, high specificity, and development speed. However, the quality control requirements are ...