Dear Reza, I used hydrogen peroxide (~0.1-2%?) to remove rhodamine stuck on Superdex columns. "Pink" columns turned "white" after this kind of treatment. Hope that helps, Tomas
On Fri, Jun 9, 2017 at 10:43 PM, Reza Khayat <rkha...@ccny.cuny.edu> wrote: > Hi, > > Sorry for the non crystallography question. We're using Rhodamine for > labeling some material that we need to run through our FPLC. It seems that > the Rhodamine is getting stuck to the PEEK tubing. Anyone has experience with > successfully removing the Rhodamine from the tubing? Thanks. > > Best wishes, > Reza > > Reza Khayat, PhD > Assistant Professor > City College of New York > Department of Chemistry > New York, NY 10031