Just called the company where I had bought that stuff. They confirmed that 0.3% silica are added as anti-caking agent to their "technical grade" quality. They suggested that, for biochemical experiments, one might buy their biochem grade. Oh-no! By far too expensive. Actually, what are technical application of GuHCl if not cleaning of sephadex columns?
Wo _______________________________________________ Methods mailing list [email protected] http://www.bio.net/biomail/listinfo/methods
