phosphocellulose longevity

[Dima Klenchin]

In article <gjenkins-1510960752440001 at jenkins.humonc.wisc.edu>,
   gjenkins at facstaff.wisc.edu (Glenn Jenkins) wrote:
->When I use to work with phosphocellulose, I would make it up in large
->batches and store in 0.5 M Na-Phosphate and 1 M NaCl. I never re-used 
the
->column because it would get compacted and give poor flow rates.

Just define the matrix really carefully and it'll be fine for many runs.

- Dima