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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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Analytical systems from Malvern Instruments are now used routinely to advance inkjet formulation at Domino Printing Sciences plc in the UK, one of the world’s leading printing technology companies. Domino are best known for printing “sell-by” dates o...
In this application note, a selection of different PLA and PLGA polymer samples were analyzed on Malvern's OMNISEC GPC/SEC system, which combines multiple detectors to provide information about structure and solution properties.
In this application note, the molecular weight, molecular weight distribution and size of common polymers are measured using the OMNISEC system.
In this application note, the structural distribution of some common polymers are compared using the Mark-Houwink plot. The data are all generated using the advanced OMNISEC multi-detector GPC/SEC system
This technical note describes the features and benefits of OMNISEC RESOLVE. It also includes a discussion of the value of OMNISEC as a complete system as opposed to upgrading an existing conventional system to advanced detection.
(Webinar - Recorded)
Analytical strategies for inkjet formulation – A customer perspective
(February 12 2015)
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