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D0655 Sigma

Dialysis tubing, high retention seamless cellulose tubing

avg. flat width 40 mm (1.6 in.), MWCO 12400, 99.99% retention



Related Categories Labware, Microbiology Equipment, Vaccine Tools More...
avg. diam.   25 mm , when full
avg. flat width   40 mm (1.6 in.)
capacity   ~150 mL/ft
pore size   12400 MWCO, 99.99% retention


General description

Retains >99% of cytochrome c (M.W. 12,400) in solution over a 10-hour period.


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.


May contain glycerin and sulfur compounds in more than trace amounts; washing instructions are included.

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Safety Information

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Certificate of Origin

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