macro-prep high q sepharose and urea 8 M

[.Foti Marcelo]

Hi netters,

Do anyone works with bio rad's macro-prep high q sepharose?
I need know if that ion exchange resin could be worked with urea at high
concentration (~8 M).
If not, phenyl sepharose does it ?

Thank you in advance,


Lic M D Foti
Argentine