Patent ID: 8920646

Claim:
A chromatographic column comprising: a generally cylindrical column body for enclosing chromatographic material in a defined compressed state within a gel chamber having an inner diameter, the column body having a discharge opening, an upper edge, and a convexly curved outer surface at a lower end thereof; a plunger having an outer diameter larger than the inner diameter of the gel chamber and inserted in the column body, the plunger designed as one of a sample chamber and an adapter; upper and lower filter plates positioned at a specified distance from one another when the plunger is inserted a predetermined distance into the column body and engages the upper edge of the column body, the lower filter plate being held in position by resting on a projection and the upper filter plate integrated into a lower portion of the plunger and movable with the plunger to define the gel chamber within the column body when the plunger is inserted the predetermined distance.