Gel Permeation Chromatography (GPC/SEC) RSS Feed - Gel Permeation Chromatography (GPC/SEC)

Gel Permeation Chromatography (GPC) or Size Exclusion Chromatography (SEC) is a technique used to determine molecular weights and distribution of molecular weights of polymers and proteins in solution and separate them according to size. Measurements are based on the hydrodynamic volume of the material.
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Equipment
The Viscotek 270max is a complete, column temperature controlled, multi-detector GPC/SEC system suitable that enables the routine characterization of proteins, natural and synthetic polymers, copolymers and other macromolecules.
The Malvern - Viscotek RImax is a comprehensive, GPC/SEC system suitable for the relative molecular weight characterization of proteins, natural and synthetic polymers, copolymers and other macromolecules.
The Viscotek TDAmax system or as a stand-alone module, the Viscotek triple detector array (TDA) incorporates RI, light scattering, viscosity detectors.
The BI-DNDC is a deflection type refractometer that may be purchased for use in either batch or GPC/SEC mode. In batch mode, the specific refractive index increment, dn/dc, is determined. This value is required as a parameter in molecular weight measurements using light scattering. In GPC/SEC mode, dn/dc is already known, and the instrument is used as a concentration detector for GPC/SEC applications.
The Viscotek TDAmax is a comprehensive, research grade, temperature controlled, multi-detector GPC/SEC system suitable for the molecular weight and molecular size determination of proteins, natural and synthetic polymers, copolymers and other macromolecules.
The systems are specifically developed for the structure characterization and molecular weight of polyolefins but with the ability to handle other polymers such as PEEK, polythiophene and PVF that need temperatures up to 160°C to stay in solution.