A rapid method for removal of detergents from protein solution.

A simple and rapid technique is described for the removal of Triton X-100, deoxycholate, and cholate from protein solutions. The method involves a 2-min centrifugation of the sample on a Bio-Beads SM-2 bed prepared in a microcentrifuge tube and is suitable for multiple assays of 0.05- to 0.45-ml samples. Another advantage of this method is the high recovery of proteins without dilution of the sample.