Spectra/Por Regenerated Cellulose Dialysis Membranes
Spectrum Medical Spectra/Por Regenerated Cellulose Dialysis Membranes represent a revolutionary advance in dialysis technology. Available in a variety of nominal molecular weight cutoffs, they carry practically no fixed charge. They also feature good chemical and pH resistance, and high temperature tolerance without significant changes in the MWCO rating. Membranes can be used with dilute strong acids and bases, concentrated weak acids and bases, most alcohols and some mild or dilute organic solvents, including DMSO.
Spectra/Por 1-4 are for separations at an approximate molecular weight cutoff. Supplied dry, they contain 10% glycerol, 0.1% sulfur and heavy metal traces. Use Spectra/Por 6 for separations at a specified MWCO. Supplied wet in a 0.1% sodium azide preservative solution.
The Spectra/Por 2 thin membrane reduces normal dialysis time by more than half. Similar to standard lab dialysis tubing.
The Spectra/Por 4 is Similar to the Spectra/Por 2 except thicker. Dialysis time is slower but more cost effective.
Spectra/Por 6 membranes have more specific retentivity than Spectra/Por 1-4. Supplied wet in 0.1% sodium azide solution, rinse with distilled water before using. These membranes have traces of heavy metal, but no sulfur.
Key Features
- Symmetrical porosity for reproducible results
- Will not absorb most solutes
- Good chemical and pH resistance
- High temperature tolerance
| Specifications for Spectra/Por 1 Dialysis Membranes | |
|---|---|
| Membrane Type: | Symmetric Regenerated Cellulose Tubing |
| Physical Properties: | Transparent, flexible Spectra/Por® 5 reinforced with porous paper layer |
| PH limits: | 2-12 |
| Suggested temperature: | 60° C |
| Organic Solvent Tolerance: | Good |
| MWCO range | Spectra/Por 1: 6000-8000 daltons Spectra/Por 2: 12000-14000 daltons Spectra/Por 3: 3500 daltons Spectra/Por 4: 1200-14000 daltons Spectra/Por 6: 1000 daltons (50000 for EF6089) |
| Item | Diameter | Flat Width- mm | Length_ft | MWCO | Spectra/Por | Unit of Measure | Price | Purchase |
|---|---|---|---|---|---|---|---|---|
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SMI132720
132720
|
11.5 mm | 18 | 50 | 3.5 kD | 3 | Pack of 50 |
Call to order
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SMI132724
132724
|
29 mm | 45 | 50 | 3.5 kD | 3 | Each |
Call to order
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SMI132709
132709
|
48 mm | 75 | 50 | 12-14 kD | 4 | Each |
Call to order
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SMI132700
132700
|
16 mm | 25 | 100 | 12-14 kD | 4 | Pack of 100 |
Call to order
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SMI132725
132725
|
34 mm | 54 | 50 | 3.5 kD | 3 | Pack of 1 |
Call to order
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SMI132544
132544
|
22 mm | 34 | 33 | 50 kD | 6 | Each |
Call to order
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SMI132640
132640
|
29 mm | 45 | 33 | 1 kD | 6 | Pack of 10000 |
Call to order
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SMI132660
132660
|
25.5 mm | 40 | 100 | 6-8 kD | 1 | Each |
Call to order
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SMI132638
132638
|
24 mm | 38 | 33 | 1 kD | 6 | Each |
Call to order
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SMI132650
132650
|
14.6 mm | 23 | 100 | 6-8 kD | 1 | Pack of 100 |
Call to order
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SMI132655
132655
|
20.4 mm | 32 | 100 | 6-8 kD | 1 | Each |
Call to order
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SMI132678
132678
|
16 mm | 25 | 50 | 12-14 kD | 2 | Pack of 1 |
Call to order
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SMI132697
132697
|
6.4 mm | 10 | 100 | 12-14 kD | 4 | Each |
Call to order
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SMI132680
132680
|
29 mm | 45 | 50 | 12-14 kD | 2 | Pack of 1 |
Call to order
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SMI132645
132645
|
6.4 mm | 10 | 50 | 6-8 kD | 1 | Each |
Call to order
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SMI132665
132665
|
32 mm | 50 | 100 | 6-8 kD | 1 | Each |
Call to order
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SMI132706
132706
|
29 mm | 45 | 100 | 12-14 kD | 4 | Each |
Call to order
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