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Gel Permeation Chromatography (GPC) is an analytical technique that separates dissolved macromolecules by size based on their elution from columns filled with a porous gel.
When GPC is coupled with light scattering, viscometer and concentration detectors (known as triple detection), it can measure absolute molecular weight, molecular size and intrinsic viscosity, and generate information on macromolecular structure, conformation, aggregation and branching.
By using GPC to measure molecular weight and these other properties, scientists can characterize molecules such as synthetic polymers, as well as natural polymers such as polysaccharides.
For all of these molecules, these parameters relate very closely to their performance in countless applications. With this technique:
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This webinar will discuss how Malvern’s protein SEC measurement capabilities within the Viscotek range have developed and improved in the last year. We will also introduce the new features that are included in the latest release of OmniSEC, i...
This article gives an introduction to multi-detection GPC/SEC and presents data that shows how the technique is being used to determine the impact of sterilization on medical grade poly(L-lactide).
Hyaluronic acid (HA) is a natural polysaccharide, that plays an important role in tissues, such as skin, tendons, muscles, and cartilage. As well as medical applications, It finds wide-spread use in cosmetics, particularly skin creams. In...
Most scientists can easily understand polymer molecular weight differences but often intrinsic viscosity, a harder concept to grasp, is a more useful measure of a polymer in solution. This webinar describes in simple terms what intrinsic ...
This technical note describes the two different ways of operating the seal wash system in the Viscotek GPCmax and VE-1122 pumps, which are essential for maximising the lifetime of seals and pistons.
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