3.1 Preparing the ultrafiltration cell
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IC equipment: Inline-Ultrafiltration
￭ Thoroughly rinse off the sealing ring, the upper chamber and the
lower chamber of the ultrafiltration cell with ultrapure water.
￭ Dry all parts with a lint-free cloth.
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Wetting the filtration membrane
NOTICE
In the package containing the filtration membranes, you will find
sheets of different thicknesses and colors:
￭ The firm white cardboard is a cover protecting the filtration
membranes. Do not insert the cover into the ultrafiltration cell.
￭ The thin light-blue sheets are separation sheets placed between
2 filtration membranes. Do not insert the separation sheets into
the ultrafiltration cell.
￭ The thin white sheets are the filtration membranes. Only insert
the filtration membranes into the ultrafiltration cell.
￭ Using the tweezers, take a new filtration membrane out of the
package.
￭ Place the filtration membrane in a petri dish filled with ultrapure
water and allow to hydrate for approx. 2 minutes.
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Inserting the filtration membrane
NOTICE
The water-soaked filtration membrane must not dry out before it is
inserted. Otherwise it can no longer be used.
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