Bio-Rad UNOsphere™ Rapid S Media User Manual

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Table 1 Products for Buffer Exchange.

Sample Recommended
Volume

Product Use

Catalog

#

50–100 µl

Bio-Spin 6 column Desalting proteins

732-6000

6 kD

50–100 µl Bio-Spin 30 column Desalting proteins

732-6004

30 kD

100 µl–3 ml Bio-Scale Mini P6

Desalting proteins

732-4502

cartridge 6

kD

Up to 3 ml Econo-Pac 10DG

Desalting proteins

732-2010

desalting columns

6 kD

Unlimited

Bio-Gel P-6DG gel Desalting proteins

150-0738

6 kD

4.2 General Purification Protocol

Ion exchange chromatography is usually performed
using increasing salt gradients or pH gradients to
elute the sample components. For best results, and
increased cartridge life, samples and buffers should
be degassed and filtered through a 0.45 µm filter.

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