Membrane filter
A membrane filter is a matrix with channels which act as a screen and retain particles larger than the filter on the surface of themembrane.
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Are Syringe Filters certified pyrogen free?
No,notnormallyperformedpyrogentestsonourfilters....
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What is the shelf life of membranes?
Celluloseacetate(CA)andnitrocellulose(MCE)membraneswilllast21/2to3yearsbefore revertingtotheirnaturalhydrophobic states. Nylon,ontheotherhand,isnaturallyhydrophilicsoitdoesnothaveashelflife. Aneasytestforoldermembranesistopreform awettingout...
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What membrane has been used to prevent water vapor from passing, but would allow regular air to pass
Thecommonmembranesusedforgas/airfiltrationareourhydrophobicPolypropyleneandPTFEMembranes.Theybothinhibitthe flowofwatervapors(hydrophilic)whileallowingregularairmolecules(suchasoxygen)topass. ForthePTFEmembranethewaterintrusionpressure(which...
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We would like to filter fluids and wonder which membrane to use for cytology?
Cytology:Cellsareremovedfromthebody,thenstainedandexaminedunderamicroscopy.Thetrainedphysicianorcytotechnologist isabletodetectthepresenceofmalignancy. Useofeitherthe5.0umor8.0umpolycarbonatemembrane. PoreStructureandPorosity Minimumcloggin...
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Which membrane is recommended for size characterization analysis?
Thepolycarbonatetrack-etch(PCTE)membraneisrecommendedforsizecharacterizationanalyses.Theporesofthismembraneare exceptionallyuniformandareofferedaslowas0.01uminsize....
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Can my Nylon membranes be treated exactly like Nitrocellulose during colony hybridization?
OneofourcustomerswaswonderingifdryingE.colionNylontransfermembranespriortodenaturationeffectsthecolonyhybridization. Further,theywerewonderingifafterdryingthemembranes,wouldtreatingwithSDSbeforedenaturationeffectthehybridization?The answeri...
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I am interested in gridded, sterile membranes, but I am concerned about the high costsof shipping Ni
WeoffertwoalternativestogriddedNitrocellulosemembranes,whichincurnoHazardousmaterialscharges,Nylonand Polyethersulfone(PES)....
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How many times can the Capsule filters be autoclaved?
TheCapsulefilterscanbeautoclavedat121Cforuptofive30mincycles....
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What is the maximum operating pressure for the Capsule filters?
ThemaximumoperatingpressurefortheCapsulefiltersvarieswithliquidsandgases. Liquids-80psi Gases-55psi...
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Is your Cellullose Acetate (CA) membrane made of mono-, di-, or triacetate?
CAmembranesaremadefromcellulosediacetate....