SnakeSkin™ Dialysis Tubing (Thermo Scientific™)

Key Features

The easy-open, pleated format of SnakeSkin Dialysis Tubing was developed to simplify large volume sample dialysis. To use, simply pull out and cut off the required length of tubing, fold over one end of tubing and apply a dialysis clip to close it, then add sample at the open end and use a second clip to close the remaining end. Clips are sold separately. In comparison, many traditional dialysis tubing membranes are supplied as dry, flattened rolls that are difficult to open and often require extensive soaking before they can be used.

The SnakeSkin membrane-pleating process does not change the tubing's MWCO. Also, any low MW contaminants present are removed during the dialysis process. SnakeSkin Dialysis Tubing is made from the same type of regenerated cellulose as flat tubing, so it matches the dialysis performance of conventional tubing.

Features of SnakeSkin Dialysis Tubing:
• Convenient—ready to use, pre-wetted, pleated tube
• High recovery—greater than 90% protein recovery
• Speed—dialysis is generally completed in 4–6 hours
• Stability—compatible with a variety of laboratory solutions, including acids, bases, hydrophobic solvents, and alcohols

Features of SnakeSkin Dialysis Tubing Clips:
• Durable—polyamide composition for long-life
• Dove-tail latch—prevent sample loss
• Heat resistant—autoclave up to 134°C

SnakeSkin Dialysis Tubing, 3.5K or 10K MWCO, is composed of regenerated-cellulose and supplied as an open, pleated (telescoped) tube. It is supplied in 20-cm sticks containing 35 feet of dialysis tubing having a 16-, 22-, or 35-mm circular internal diameter (I.D.). With similar capacity to 10.5 meters of 23–50 mm diameter dry flat width tubing, the hydrated SnakeSkin Dialysis Tubing holds ∼2–10 mL of sample per centimeter of length.

SnakeSkin 7K MWCO dialysis tubing is supplied in 20-cm sticks containing 35 feet of dialysis tubing having a 22-mm circular internal diameter (I.D.). Equivalent in capacity to 10.5 meters of 34-mm diameter dry flat width tubing, the hydrated SnakeSkin Dialysis Tubing holds ∼3.7 mL of sample per centimeter of length.

3.5K MWCO tubing specifications:
• Membrane type: regenerated cellulose
• Tubing nominal dry thickness: 0.9–1.2 mil (22–30 μm)
• Glycerol content: trace
• Sulfur content: 0.1–0.15%
• Heavy metals content: trace

7K MWCO tubing specifications:
• Membrane type: regenerated cellulose
• Tubing nominal dry thickness: 0.9–1.2 mil (22–30 μm)
• Glycerol content: 13%
• Sulfur content: 0.1–0.15%
• Heavy metals content: trace

10K MWCO tubing specifications:
• Membrane type: regenerated cellulose
• Tubing nominal dry thickness: 0.9–1.2 mil (22–30 μm)
• Glycerol content: 21%
• Sulfur content: 0.1–0.15%
• Heavy metals content: trace

Dialysis clip specifications:
• Height: 10 mm
• Width: 16 mm
• Inner Length: 50 mm (maximum closure width)
• Outer Length: 66 mm (end to end)
• Composition: polyamide (nylon) derivative

Order Codes

Code	Description
68011	Catalog Number: 68011 Unit Size: 6 clips Description: Dialysis Clips
88242	Catalog Number: 88242 Unit Size: 10.5 m Description: Dialysis Tubing, 3.5K MWCO, 16 mm I.D.
88243	Catalog Number: 88243 Unit Size: 10.5 m Description: Dialysis Tubing, 10K MWCO, 16 mm
68035	Catalog Number: 68035 Unit Size: 10.5 m Description: Dialysis Tubing, 3.5K MWCO, 22 mm I.D.
68700	Catalog Number: 68700 Unit Size: 10.5 m Description: Dialysis Tubing, 7K MWCO, 22 mm I.D.
68100	Catalog Number: 68100 Unit Size: 10.5 m Description: Dialysis Tubing, 10K MWCO, 22 mm I.D.
88244	Catalog Number: 88244 Unit Size: 10.5 m Description: Dialysis Tubing, 3.5K MWCO, 35 mm I.D.
88245	Catalog Number: 88245 Unit Size: 10.5 m Description: Dialysis Tubing, 10K MWCO, 35 mm I.D.