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RetentionMechanism:CationexchangeSampleMatrixCompatibility:Organicoraqueoussolutions• Apolymericallybonded,ethylenediaminetriaceticacidphasewithapKaof4.8• CounterionisNa+• Ionexchangecapacityis∼0.15meq/g• CarriesanegativechargeatpH6.8orabove• ApHof2.8orbelowneutralizesthisphaseforeasierelutionofstrongcationicanalytesthatareneutralizedonlyatextremebasicconditions• Typicallyusedwhendealingwithverystrongcationic(highpKa)compoundsthatmaybeirreversIBLyretainedonstrongcationexchangers
DiscoveryisaregisteredtrademarkofSigma-AldrichCo.LLC
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