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gel permeation chromatography |
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gel permeation chromatography [¦jel ‚pər·mē′ā·shən ‚krō·mə′täg·rə·fē] (analytical chemistry) Analysis by chromatography in which the stationary phase consists of beads of porous polymeric material such as a cross-linked dextran carbohydrate derivative sold under the trade name Sephadex; the moving phase is a liquid. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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The changes made in the manufacturing technology are not normally part of the delivered specification and are measured only by lengthy and difficult laboratory analytical procedures with highly sophisticated tools like gel permeation chromatography (GPC) and nuclear magnetic resonance (NMR) (refs. For instance, gel permeation chromatography yields the mass distribution but requires calibration with hard-to-find standards of known mass. Key Topics Covered inside Report: 1 Direct Determination of Additives in Polymers and Rubbers 2 Extraction Techniques for Additives in Polymers 3 Liquid Chromatography 4 Gas Chromatography 5 Thin-Layer Chromatography 6 Paper Gel Permeation Chromatography 7 Supercritical Fluid Chromatography 8 Headspace Analysis - Volatiles 9 Thermal Methods 10 Determination of Water 11 Determination of Metals 12 Non-metallic Elements Appendix 1 |
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