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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)

Filter
Item Diameter Flat Width- mm Length_ft MWCO Spectra/Por Unit of Measure Price Purchase
SMI132720
132720
11.5 mm 18 50 3.5 kD 3 Pack of 50
Call to order
SMI132724
132724
29 mm 45 50 3.5 kD 3 Each
Call to order
SMI132709
132709
48 mm 75 50 12-14 kD 4 Each
Call to order
SMI132700
132700
16 mm 25 100 12-14 kD 4 Pack of 100
Call to order
SMI132725
132725
34 mm 54 50 3.5 kD 3 Pack of 1
Call to order
SMI132544
132544
22 mm 34 33 50 kD 6 Each
Call to order
SMI132640
132640
29 mm 45 33 1 kD 6 Pack of 10000
Call to order
SMI132660
132660
25.5 mm 40 100 6-8 kD 1 Each
Call to order
SMI132638
132638
24 mm 38 33 1 kD 6 Each
Call to order
SMI132650
132650
14.6 mm 23 100 6-8 kD 1 Pack of 100
Call to order
SMI132655
132655
20.4 mm 32 100 6-8 kD 1 Each
Call to order
SMI132678
132678
16 mm 25 50 12-14 kD 2 Pack of 1
Call to order
SMI132697
132697
6.4 mm 10 100 12-14 kD 4 Each
Call to order
SMI132680
132680
29 mm 45 50 12-14 kD 2 Pack of 1
Call to order
SMI132645
132645
6.4 mm 10 50 6-8 kD 1 Each
Call to order
SMI132665
132665
32 mm 50 100 6-8 kD 1 Each
Call to order
SMI132706
132706
29 mm 45 100 12-14 kD 4 Each
Call to order