Synonym:QuEChERSProperties:
RelatedCategories | AOAC2007.01,Analytical/Chromatography,SamplePreparation&Purification,ShakerCompatIBLe15mLQuEChERSCleanupTubes,SolidPhaseExtraction(SPE), |
composition | MagnesiumSulfate,1200 mg |
| Supelclean™PSA,400 mg(Cat.No.52738-U) |
packaging | pkof50 |
centrifugetubevolume | 15 mL,ShakerCompatible |
suitABIlity | suitablefor2007.01perAOAC |
Description:
Compatibility
CompatiblewithmostQuEChERSshakers.
Generaldescription
DispersiveSPE(dSPE),oftenreferredtoasthe"QuEChERS"method(Quick,Easy,Cheap,Effective,Rugged,andSafe),ismodernsamplepreptechniquethatisbecomingincreasinglypopularintheareaofmulti-residuepesticideanalysisinfoodandagriculturalproducts.
UsingtheQuEChERSmethod,food/agriculturalsamplesarefirstextractedwithanaqueousmisciblesolvent(e.g.,acetonitrile)inthepresenceofhighamountsofsalts(e.g.,sodiumchlorideandmagnesiumsulfate)and/orbufferingagents(e.g.citrate)toinduceliquidphaseseparationandstabilizeacidandbaselabilepesticides,respectively.Uponshakingandcentrifugation,analiquotoftheorganicphaseissubjectedtofurthercleanupusingSPE.UnliketrADItionalmethodsusingSPEtubes,indispersiveSPE,cleanupisfacilitatedbymixingbulkamountsofSPE(e.g.,SupelcleanPSA,ENVI-Carb,and/orDiscoveryDSC-18)withtheextract.Aftersamplecleanup,themixtureiscentrifugedandtheresultingsupernatantcaneitherbeanalyzeddirectlyorcanbesubjectedtominorfurthertreatmentbeforeanalysis.
Supelcocarriesalineofvialsandcentrifugetubescontainingpre-determinedamountsofsaltsandSPEsorbentstosupportthemostcommonmethodconfigurationsusedtoday.
Suitability
Suitableforfood/agriculturalsampleslowinfat,chlorophyll,andcarotinoidecontent.
LegalInformation
SupelisatrademarkofSigma-AldrichCo.LLC
SupelcleanisatrademarkofSigma-AldrichCo.LLC