Dialysis Membrane Conditioning
Dialysis Membrane Conditioning
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Cellulose Acetate Membranes (wet membranes)
Treatment before use
1. Soak the membrane in a large volume of deionized water for 30 minutes at room
temperature to remove sodium azide.
2. Rinse thoroughly in deionized water.
Membrane Storage
Wet membranes should be stored in an aqueous preservative solution at 4oC, but not frozen.
Suitable preservatives are 0.1% sodium azide, 1% sodium benzoate, 1% hydrogen peroxide and 1% formaldehyde.
They should not be allowed to dry out.
Regenerated Cellulose Membranes (dry membranes)
Treatment before use
1. Soak the membrane in a large volume of deionized water for 30 minutes at room
temperature to remove glycerine.
2. Rinse thoroughly in deionized water.
Membrane Storage
Unused dry membranes should be stored in a sealed plastic bag as a humidity control
measure. They may be stored at room temperature or at 4oC, but should never be frozen.
After they are wetted, the membranes should be stored in an aqueous preservative
solution at 4oC, but not frozen.
Suitable preservatives are 0.1% sodium azide, 1% sodium benzoate, 1% hydrogen peroxide and 1%
formaldehyde. They should not be allowed to dry out.
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The Nest Group, Inc.™ 17 Hayward St., Ipswich, MA 01938-2041 USA
Tel: 1-508-481-6223
Fax: 1-508-485-5736
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Last Updated: 08/20/21
