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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Featured Equipment
The Viscotek RI Detector is a high-stability concentration detector that is used for molecular weight determination. In order to determine the molecular weight or structural data, the polymer or protein concentration profile needs to be precisely measured.
Other Equipment
The polymer or protein concentration profile needs to be accurately measured in order to obtain high-quality molecular weight or structure data. The high-stability Viscotek UV detector is suitable for multi-detection GPC/SEC.
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 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.
Malvern's OMNISEC multi-detector system is the most sensitive and accurate detector used for the characterization of proteins and both natural and synthetic polymers.
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 system or as a stand-alone module, the Viscotek triple detector array (TDA) incorporates RI, light scattering, viscosity detectors.