DIALYSIS TUBING [Visking] Variety

Price range: $ 8.80 through $ 302.50 excl. GST

• These Visk dialysis tubing are semi-permeable membranes made of regenerated cellulose using the viscose process.
• Available flat widths are 25mm, 34mm, 77mm with set length variations available.
• Molecular weight cut off (MWCO) approximately 12000 to 14000 daltons.

FEATURES:
– pH chemical stability range of 5 to 9 and are stable in weak acids and bases.
– Great compatibility with many salts –CaCl2, (NH4)2SO4, etc and with most aqueous organic solvents, such as alcohols and ketones.
– Excellent temperature resistance.
– Membranes are sensitive to cellulose activity when humidified but using a preservative like benzoate will control bacterial growth.
– Membranes can be sterilized by autoclave.
– Membranes with aqueous solutions can be frozen.
– Sensitive to microbial activity when humidified, however, growth of cellulolytic micro-organisms can be prevented by keeping the membrane in water containing benzoate, benzoic acid, or other preservatives.
– Very low protein absorption. < 1 ng/g of dry membrane.

Description

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SKU: DIALYSIS-TUBING-visking Categories: Physics, Tube and Tubing related

Description
Additional information

DIALYSIS TUBING [Visking]: Variety, 1M, 5M, 30M.

– Contains low levels of contaminants, some membranes contain glycerin as a humectant, contaminants may be removed by boiling prior to use.

(Wikipedia excerpt: ..." Dialysis tubing, also known as Visking tubing, is an artificial semi-permeable membrane tubing[1] used in separation techniques, that facilitates the flow of tiny molecules in solution based on differential diffusion. In the context of life science research, dialysis tubing is typically used in the sample clean-up and processing of proteins and DNA samples or complex biological samples such as blood or serums. Dialysis tubing is also frequently used as a teaching aid to demonstrate the principles of diffusion, osmosis, Brownian motion and the movement of molecules across a restrictive membrane. For the principles and usage of dialysis in a research setting, see Dialysis (chemistry)....")

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