The Centrifan PE evaporator/concentrator is a small-volume evaporator that eliminates the problem of bumping using patented SBT (self blowdown technology). SBT allows solvent drying using heated, circulating gas flow and without a vacuum pump. The cost-effective unit dries solvents directly in the vial, increasing evaporation efficiency in the lab. It is easy-to-use and requires no monitoring; set-up is quick: simply put in the samples and close the cover; unit has a small footprint; and drying can be done directly in vials. KD Scientific