D9777
Dialysis tubing cellulose membrane
avg. flat width 25 mm (1.0 in.)
Synonym(s):
Cellulose dialysis tubing, Dialysis membrane
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About This Item
NACRES:
NB.22
UNSPSC Code:
41123100
avg. diam.
16 mm , when full
avg. flat width
25 mm (1.0 in.)
capacity
~60 mL/ft
General description
Typical molecular weight cut-off = 14,000.
Packaging
Supplied in rolls, dry
Preparation Note
Removal of glycerol included as a humectant can be accomplished by washing the tubing in running water for 3-4 hours. Removal of sulfur compounds can be accomplished by treating the tubing with a 0.3% (w/v) solution of sodium sulfide at 80°C for 1 minute. Wash with hot water (60°C) for 2 minutes, followed by acidification with a 0.2% (v/v) solution of sulfuric acid, then rinse with hot water to remove the acid. This tubing will retain most proteins of molecular weight 12,000 or greater.
Analysis Note
May contain glycerin and sulfur compounds in more than trace amounts.
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