GEHealthcare�������������GelFiltrationPrinciplesandMethods18-1022-18RecombinantProteinPurificationHandbookPrinciplesandMethods18-1142-75ProteinPurificationHandbook18-1132-29HydrophobicInteractionandReversedPhaseChromatographyPrinciplesandMethods11-0012-692-DElectrophoresisusingimmobilizedpHgradientsPrinciplesandMethods80-6429-60MicrocarrierCellCulturePrinciplesandMethods18-1140-62GSTGeneFusionSystemHandbook18-1157-58AffinityChromatographyPrinciplesandMethods18-1022-29AntibodyPurificationHandbook18-1037-46PercollMethodologyandApplications18-1115-69IonExchangeChromatography&ChromatofocusingPrinciplesandMethods11-0004-21PurifyingChallengingProteinsPrinciplesandMethods28-9095-31HandbooksfromGEHealthcareChallenging�����������4��.....................................................................................................................................................................................................7������������................................................................................................................................................11�������.........................................................................................................................................................................11����........................................................................................................................................................................................14�����������.....................................................................................................................................................21����������..........................................................................................................................................................21������.....................................................................................................................................