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Norit A removal

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elginang:
I realize that this seems to be a very elementary problem, none-the-less I have had serious purification problems of late trying to get rid of Norit A from material being purified. Celite, very fine filter paper, syringe filter packs have all been tried but still some Norit A or any other type of decolourizing carbon remained. Other than not using this material any suggestions for keeping it out of my product? The colour that I was trying to remove happened to follow my product down a silica column regardless of the solvent system used.

mir:
How about trying to refrigirate the solution of norit?
You may also try to use electrostatic fields. You know the force that gathers dust on the tv-screen.
Other suggstions would be to extract the norit-solution. I guess the norit would solve better in organic solvents.
Well if that doesnt work. I have no idea. Just my humble intuition. But I dont have so much practice on the lab yet :-)

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