"quaternary amine" Related Products

      QAE Dextran Resin

      Cat.no : quaternary amine-001D
      Product Overview : QAE Dextran Resin is a weak cation exchanger based on the well documented and well proven Dextran base matrix. The resin is produced by introducing QAE functional groups onto the cross-linked dextran matrix.
      Matrix : Cross-linked dextran
      Ion exchange capacity : 2.6–3.4 mmol/g dry powder
      Functional group : quaternary amine group: –O–CH2CHOHCH2OCH2CHOHCH2N+(CH3)3
      Protein : quaternary amine
      Average particle size : 40-120 μm
      Ligand : Diethyl-(2-hydroxy-propyl)aminoethyl
      Dynamic binding capacity : thyroglobulin (Mr 669 000): 1.5 mg/ml drained medium; HSA (Mr 68 000): 10 mg/ml drained medium; α-lactalbumin (Mr 14 300): 110 mg/ml drained medium
      Viscosity : Store swollen medium in the presence of a suitable bacteriostat, e.g. 20% ethanol or 0.01 M NaOH at 4–8°C. Sodium azide or thiomersal should not be used as bacteriostat.
      Chemical stability : Stable to all commonly used aqueous buffers and additives such as 8 M urea and 6 M guanidine hydrochloride.
      Physical stability : Negligible volume variation due to changes in pH or ionic strrength.
      pH working range : 2-12
      pH CIP range : 2-13
      Autoclavable : In 0.1 M sodium chloride at 121 °C for 30 min
      Warning : Avoid Oxidising agents and dextranase
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