Hi Frank,
I have never tried this for soaking but all the conversions that you
need between any salt and any other ppt can be found here
http://go.esrf.eu/RH, the RH matching is the same process as osmolarity
so it could work, best wishes, Matt.
On 2014-07-26 21:42, Frank von Delft wrote:
Hi all - The Google fails me, so I'll the CCP4BBoogle:
Can anybody conjure up some of the references that describe the
details of how to get a (say) PEG solution to have the same osmotic
pressure as a (say) salt solution - in particular, this is for
transferring a crystal from it's original salt condition into a more
ligand-friendly PEG condition.
I know there was something from the late nineties, where specific
lookup tables were either shown or mentioned; but I've not been able
to track it down.
Thanks!
phx
