Toensurereliableexperimentalresultsandenablethehighestperformancefromyoursolutions,itisessentialtousetherightfilter.Thefeaturesofafiltersuchasdiameter,poresize,membranematerial,andhousing,areallimportant.Atossila,wehaveselectedarangeofsyringefilterswhichcanbeusedformostapplicationsandareallcompatIBLewithoursolvent-safepolypropylenesyringes. |
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ProductList
Non-AqueousSyringeFilters
ProductCode | C101 | C102 | C103 | C104 | C2006S2 | C2006S1 | ||
PoreSize | 0.1μm | 0.22μm | 0.45μm | 1.2μm | 0.1μm | 0.45μm | ||
Membrane | PTFE(Hydrophobic) | PVDF(Hydrophobic) | ||||||
FilterDiameter | 13mm | |||||||
FiltrationArea | >1.3cm2 | |||||||
RetainedFluid | <100μl | |||||||
PackSize | 100filters | |||||||
PackageType | Lowdustpolyethylenebox |
*Ifyourequireaporesizeordiameternotlistedinthetablepleasecontactustoseeifwecanprovideyouwithasyringefiltertomeetyourspecifications.
AqueousSyringeFilters
ProductCode | C2007S1 | C2007S2 | C2008S1 | C2008S2 | C2009S1 | C2009S2 | ||
PoreSize | 0.45μm | 0.1μm | 0.45μm | 0.1μm | 0.45μm | 0.1μm | ||
Membrane | Nylon | PTFE(Hydrophillic) | PES | |||||
FilterDiameter | 13mm | |||||||
FiltrationArea | >1.3cm2 | |||||||
RetainedFluid | <100μl | |||||||
PackSize | 100filters | |||||||
PackageType | Lowdustpolyethylenebox |
*Ifyourequireaporesizeordiameternotlistedinthetablepleasecontactustoseeifwecanprovideyouwithasyringefiltertomeetyourspecifications.
Specifications
FilterHousing | Polypropylene/HighDensityPolyethylene |
InletAttachment | FemaleLuerlock |
OutletAttachment | MaleLuerSlip |
MaximumOperatingTemperature | 60℃ |
Sterilization | Autoclaveat121℃for20minutes |
MembraneFiltrationOverview
Membranefiltrationisamethodofremovingparticulatesfromsolutionwithouttheneedforanyheating.Thisfiltrationmethodistypicallyusedinotherprocesses,suchassublimationanddistillation.Itworkssimplybyrestrictingthemovementofparticlesaboveaspecificsizethroughaporousmaterial.Typicallymembranefiltrationisseparatedintoseveralcategoriesdependentuponparticlesize.Thesecategoriesare:particlefiltration,microfiltration,ultrafiltration,nanofiltraion,andreverseosmosis.Thesedifferentcategoriescoverparticlesizes,rangingfromcentimetresdowntoangstroms.Belowisanimagehighlightingtherangecoveredbymicrofiltrationmembraneshighlightingthetypesofmaterialsthatcanbefilteredout.
Membranefiltrationisusedinavarietyofscientificfieldsincludingbiotechnology,pharmaceuticals,medicine,chemistry,andsemiconductormanufacturing.Eachfieldhasverydifferentrequirementsforthefiltersandthechoiceoffiltertypecandependuponthesolventbeingfiltered,thesizeofparticlesthatneedremoving,whetherthefiltersneedtobesterile,thevolumeofsolutionbeingfiltered,andthetemperatureofyoursolution.Ifyouareunsureaboutwhatparticularmembranewouldbestsuityourneedspleaseseethefollowingsection.
ChoosingtheCorrectSyringeFilter
AtOssila,weofferfivedifferentmembranematerialsforoursyringefilters:
- HydrophobicPTFE(Polytetrafluoroethylene)
- HydrophilicPTFE
- HydrophobicPVDF(Polyvinylidenefluoride)
- PES(Polyethersulfone)
- Nylon
PTFEcanbeusedwithalmostanysolventduetoitslowreactivityandlowextractables.Additionally,PTFEhasextremelyhighthermalstABIlity,allowingforawiderrangeofprocessingtemperaturescomparedtostandardmembranematerials.However,PTFEisnaturallyhydrophobic,whichcanmakethefilteringofaqueoussolutionsdifficult.Tocounterthis,weoffertheoptionofhydrophilicPTFE-inwhichthemembranesurfacehasbeentreatedtoimprovethewettingonaqueoussolutions.
PVDFlikePTFEisnaturallyhydrophobicandlikePTFEoffershighchemicalresistanceagainstawiderangeofdifferentchemicals.PVDFalsohastheadvantageoflowproteinbindingincomparisontomaterialssuchasPTFE.
Duetoitsnaturallyhydrophilicnature,PESiscompatiblewithaqueoussolutionsandalcohols.Infact,PESishighlyrecommendedfortheuseofforfilteringaqueoussolutions.Thisisduetothereducedpresenceofextractablesfromnothavingtotreatthemembranessurfacewithwettingagents.Inaddition,duetoitsextremelylowproteinbinding,PESofferssuperiorperformanceforusewithBIOLOGicalsamplesandculturemedia.
LikePES,nylonisnaturallyhydrophilic -makingitsuitableforuseforfilteringaqueoussolutions,andlikePESitresultsinalowlevelofextractableswithinthefilteredsolution.NylonhasahigherchemicalresistancethanPESmakingitsuitableforawiderrangeoforganicsolventsincludingketones,esters,DMFandDMSO.
Belowisatableshowingthesizesofsolutionssuitablefordifferentfilterdiameters:
Diameter | SolutionVolume |
5mm | <1ml |
13mm | <10ml |
25mm | <50ml |
Wehavefoundthat13mmdiameterfiltersprovidethebestcombinationoffilteringcapability/capacity,withminimalsolutionloss.
Theporesizeofyourchosenfilterdependsonthematerialyouwishtoremove.Asthemembranematerialhasaporesizedistributionofaroundanaveragesize,itispossiblethatparticlesbiggerthanthestatedporesizemaypassthrough.Werecommendchoosingaporesizejustbelowtheminimumsizeofparticleyouwishtoremove.
Tothebestofourknowledgethetechnicalinformationprovidedhereisaccurate.However,Ossilaassumenoliabilityfortheaccuracyofthisinformation.Thevaluesprovidedherearetypicalatthetimeofmanufactureandmayvaryovertimeandfrombatchtobatch.
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