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density gradient |
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density gradient, a variation in the density of a solution caused by a change in concentration of a solute in a confined solution. 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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Purification of large quantities of influenza virus by density gradient centrifugation. Near-edge x-ray absorption fine-structure studies confirmed that the nanoparticle number density gradient was closely correlated with the concentration gradient of amino groups anchored to the substrate. In a solidifying casting, the molten metal is enriched in or depleted of all of the alloying and trace elements to differing extents (due to differences in partitioning between the liquid and solid), and the total density gradient will be a complicated combination of the thermal and concentration gradients. |
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