Properties:
RelatedCategories | Analytical/Chromatography,EmporeSPEDisks,EmporeSPEdisks,cartridges,and96-wellplates,SamplePreparation&Purification,SolidPhaseExtraction(SPE) |
Description:
Application
Polymer-basedcationexchangediskdesignedfortherecoveryorremovalofmultivalentcations(primarily2+and3+transitionmetals).ThediskfunctionalgroupexhibitsdifferentionicchargesdependingonthepHofthesolution.AtpH2,thecarboxylategroupsareneutralandnitrogenhasanetpositivecharge.Thisallowstheresintofunctionasaweakanionexchanger.IncreasingthepHionizesthecarboxylategroupsandatpH5,botharenegativelycharged.AsthepHapproachesneutral,theresinfunctionsasacationexchangerorachelatingresin.
CationSelectivity:
• Cu>Cd>Co>Mn>Ba>Ca>Sr
• Zn>Al>Cr>Sn
• Pb>Fe>Ni>Mg
Generaldescription
EmporemembraneSPEtechnologycomprisesofSPEparticlestightlyenmeshedwithinanetworkofinertPTFEfibrils(90%SPEparticles:10%PTFE,byweight).TheSPE-membranefabricationprocessresultsinahighlydenseanduniformextractionmediumthatoffersdistinctadvantagesovertrADItionalsorbent/packed-bedSPEproducts.EmporeSPEtechnologyprovidesadenser,moreuniformextractionbedthantraditionalpackedbedproductsallowingforsmallerbedweights,shorteranalytetoporediffusionpaths,andmoreefficientextractions.
TheEmporelineofSPEdiskscomprisesofthemostcompletelineofSPEdisksforextractinglargevolumesofaqueoussamples.Theproductlinerangesfromtime-testedC18touniquephasechemistriessuchascarbonandthehighlypolarOil&Greasedisk.Thedisksareidealforenvironmentalanalysiswhere1LsamplevolumesarenotuncommonandprovideanefficientalternativetoLLE.
SaveTime&Money:
• ReducedSPEBedMass=ReducedSPESolvent&ElutionVolumes
• MinimizeSPEeluateevaporationtime
• PotentiallyallowsfordirectinjectionoftheSPEeluate
• Dense&UniformExtractionMedium=NoSPEChannelingandVoiding
• Efficientmass-transferkineticsallowforfasterflowrates
• EliminateSPEfinesimprovingcolumnandinstrumentlife
Safety:
RIDADR
NONHforallmodesoftransport