The simplest way to do this might be to simply measure the degree of retention
on a hydrophobic (not reverse phase) support such as phenyl and/or octyl
sepharose. One would reasonably expect that the support would have a high
binding capacity for proteins with high surface hydrophobicity, particularly
in the presence of molar concentrations of ammonium sulfate. The material is
readily available from Pharmacia and can easily be packed into small columns
that can be cycled very quickly.
klbrillhart at ccgate.dp.beckman.com