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Close Message User Date(yyyy-mm-dd) size selection of silica particles e7maria 2004-09-14 Click here to register. I would like to separate single silica particles with a diameter of ~400nm from aggregated particles, i.e. clusters of two or more of these 400nm silica particles. I want to keep the single particles in solution (EtOH or water). The volume of dispersion is ~ 100ml. Do you have any suitable product for this?

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