The Capto Q chromatography medium for protein purification was launched this week by GE Healthcare. The medium is “ideal” for use in capture and intermediate purification of high-expression, high-volume feeds, the company said in a statement. The medium features a “highly” rigid matrix for “wider” working range of flow velocities, bed heights, and sample viscosities, in addition to “high” flow velocities to “increase” volume throughput and “reduce” process time, the company added.