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Postnova Analytics GmbH, Germany

Leading Manufacturer of Systems and Services for Field-Flow Fractionation and Light Scattering used for the Separation and Characterization of Biopolymers, Protein Aggregates and Nanoparticles. Chromatography Supplies and Consumables for GPC, SEC, HPLC and CE. more

Catalogs SEC Columns

Analytical UHPLC, GPC and HPLC Columns, Preparative Columns and Chromatography Media

The free catalogue offers a comprehensive overview of columns and media with a focus on analysis and purification of biomolecules more

White papers SEC Columns

Analysis of water soluble polymers using linear size exclusion HPLC columns and a semi-micro SEC system

One of the most widely used water-soluble polymers is Polyvinylpyrrolidone (PVP). For more than 70 years it is applied in a variety of applications in medicine, pharmacy, cosmetics and industrial production. PVP binds to polar molecules exceptionally more

Publications SEC Columns

Hydrodynamic versus Size Exclusion Chromatography Characterization of Alternan and Comparison to Off-Line MALS

Alternan is an ultrahigh molar mass polysaccharide composed of alternating α-(1→3) and α-(1→6) repeat units and that also possesses long-chain branching. Its molar mass distribution (MMD) can extend into the hundreds of millions of grams per mole. Characterizing alternan by means of size exclusion c more
Hydrodynamic versus Size Exclusion Chromatography Characterization of Alternan and Comparison to Off-Line MALS

Alternan is an ultrahigh molar mass polysaccharide composed of alternating α-(1→3) and α-(1→6) repeat units and that also possesses long-chain branching. Its molar mass distribution (MMD) can extend into the hundreds of millions of grams per mole. Characterizing alternan by means of size exclusion c more