Patent ID: 6824678
Filing Date: 2004-11-30
Classification: G01N

Abstract:
A glass chromatography apparatus comprisinga cylinder having a diameter and having two unfinished ends with each end having a cut surface; two sealing caps with each cap having circumferential shoulder wherein the circumferential shoulder corresponds to the unfinished ends of said glass cylinder; two O-rings having a diameter corresponding to the diameter of said glass cylinder and a thickness corresponding to the cut surfaces of the unfinished ends; a base and a top part having openings for receiving the two sealing caps and said cylinder; at least one rod extending from the base to top parts; wherein apparatus is assembled by inserting said sealing caps on each end of said cylinder such that each of said O-rings contacts cut surfaces of said cylinder and circumferential shoulder of said cap wherein assembled cylinder is then inserted into the openings of the base and top parts and said at least one rods is positioned between said base and said top part to draw said base and top part together, thus causing said O-rings to provide a seal between the cut surfaces of the unfinished ends of said cylinder and said caps.