Spectrum's hollow fiber membranes are anisotropic in structure. UF membranes have a high density skin layer
for less fouling and a fairly open outer support structure for increased filtration rates. MF membranes have a
retention defining microporous outer skin and a more open inner layer for increased filtration with higher recoveries.
Furthermore, the filter housings are engineered to handle higher pressures and autoclaving. Unlike our competitors,
Spectrum boasts 100% filter integrity testing!
- Manufactured under GMP in a Class 10,000 Clean room
- Low Bioburden
- Meet USP Class VI Standards for Biocompatibility
- Surfactant Free
- 100% Integrity Tested
- Easier FDA Validation
- ISO 9001:2000 Certified
All ultrafiltration membranes demonstrate a characteristic sigmoid-shaped % retention curve that starts to
descend at about 95%. Other companies randomly classify their membrane MWCO's based on test molecular
weights that are significantly higher or lower than the "descending point" and have % retentions
ranging from 30 to 90%. Although a competitor may claim a particular MWCO, they may not have tested
that molecular weight and do not "disclose" the significant % loss associated. Spectrum classifies
the membrane MWCO's based on the 90 to 99% retention of test dextrans with molecular weights at or
near the "descending point". This assures an accurate and higher expected product recovery without the "undisclosed" % losses.
Spectrum is the only company that prices hollow fiber filtration membranes so low that disposability is not just an
option... it's preferable. Disposability also saves process costs and time associated with flushing,
cleaning, storing and testing required of filters that are re-used. Disposable filters eliminate any
possibility of sample and lot contamination making FDA validation much easier than ever before.
Only Spectrum allows you to Experience the Freedom of Disposability!
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