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Spectrum™ Spectra/Por™ 7 Membrane Tubing (Sulfur and Heavy Metal Free):1 1000 to 50,000 Dalton MWCO.

Ideal for molecular separation, protein binding studies, electrolyte removal, desalting

Manufacturer:  Spectrum™ 132105

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Catalog No. 08-680-2G

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Supplied as flat-width tubing or flat sheets that can be folded to fit various funnel-type dialysis apparatus. Pure regenerated natural cellulose membranes with 1000 to 50,000 molecular weight cutoffs.

  • Transparent and flexible
  • Low molecular weight compounds in aqueous solutions diffuse through membrane
  • Higher molecular weights, such as proteins and bacteria, are retained by membrane
  • Glycerol preserves membrane and must be removed before use
  • Flat sheets and discs available for use with dialysis apparatus

Do not tie knots in tubing; use closures

Description & Specifications


Ideal for molecular separation, protein binding studies, electrolyte removal, desalting
39.2° to 249.8°F
Packaged wet in 0.05% sodium azide
1000 d
1.77 in.
16.4 ft.
Spectra/Por™ 7 Membrane Tubing
4° to 121°C
Regenerated Cellulose
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