SEC Columns

Companies SEC Columns

Showa Denko Europe GmbH, Germany

Shodex is the brand name of the HPLC columns manufactured by Showa Denko in Japan, an international chemical company. The European headquarters for Shodex are located in Munich (Germany) and provide fast deliveries to whole Europe, Russia, Africa and Middle East. They offer profound technical suppor more

dichrom GmbH, Germany

dichrom is concentrating on the distribution and support of high quality products for liquid chromatography, synthesis and isolation. The personal and individual customer support is of substantial importance for dichrom. Here a competent and comprehensive product and application advisory service as more

PSS Polymer Standards Service GmbH, Germany

PSS Polymer Standards Service GmbH is the specialist in the field of chromatographic analysis of macromolecules. The range of products and services includes all components required for comprehensive GPC/SEC, Interaction Polymer Chromatography (IPC) and 2D analysis of synthetic and natural macromolec 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

• Evidences of Long‐Chain Branching in Ziegler‐Natta Polyethylene Homopolymers as Studied via SEC‐MALS and Rheology

  Summary Comprehensive polymer architectural studies were carried out on a group of Ziegler‐Natta (Z‐N) polyethylene homopolymers via size‐exclusion chromatography coupled with multi‐angle light scattering (SEC‐MALS) and rheology. Although Z‐N resins are traditionally viewed as linear polymers, more

• Liquid Chromatography of Synthetic Polymers under Critical Conditions of Enthalpic Interactions 4. Sample recovery

  Reduced sample recovery is a frequent feature of liquid chromatography of macromolecules under critical conditions of enthalpic interactions, LC CC. Several methods of assessment of LC CC sample recovery are compared. A novel approach is based on an online combination of the LC CC column with a no more

• Ultra‐high‐performance size‐exclusion chromatography of synthetic polymers. 1. Demonstration of capability

  Ultra‐high‐performance size‐exclusion chromatography (UHP SEC) is a newly developed disruptive technology that allows the high‐resolution separation of synthetic polymers in as little as two minutes. The capability of UHP SEC for the characterization of synthetic polymers in both organic solvents more