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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
Leading Manufacturer of Systems and Services for Field-flow Fractionation and Light Scattering used for the Characterization of Biopolymers, Macromolecules and Nanoparticles. Chromatography Supplies and Consumables for GPC, SEC, HPLC and CE. more
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
Molecules, Vol. 22, Pages 1214: Molecular Weights of Bovine and Porcine Heparin Samples: Comparison of Chromatographic Methods and Results of a Collaborative Survey Molecules doi: 10.3390/molecules22071214 Authors: Sabrina Bertini Giulia Risi Marco Guerrini Kevin Carrick Anita Szaje more
α-Cyclodextrin (αCD) was threaded onto 10 kDa poly(ethylene glycol) (PEG), which was then stoppered with bulky end groups (4-methoxynaphthyl or 9-anthracenylmethyl) to give polyrotaxanes containing about 38 αCD rings threaded onto a PEG backbone. The polyrotaxanes were converted into soluble macroin more
A method using gel permeation chromatography (GPC) combined with solid-phase extraction (SPE) cleanup followed by gas chromatography–mass spectrometry (GC-MS) has been established for quantitative determination of 69 pesticide residues in coffee. Based on an appraisal of the characteristics of GC-MS more
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