What is the chemical stability of the ion exchange membranes?
They display good stability against most solvents used in chromatography and are stable against 1 N NaOH, 0.1 N HCl and a wide range of organic solvents. They are, however, unstable on exposure to oxidative solutions (for a list see e.g. page 46-47 in the Sartobind MultiSep Membrane Adsorber System manual).