"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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