Patent ID: 7410571
Filing Date: 2008-08-12
Classification: B01D,G01N

Abstract:
1. A low pressure liquid chromatographic cartridge, comprising: a tubular polymer container adapted to receive a chromatographic packing material, the container having an outlet port located at a downstream end of the container and configured for connecting to chromatographic equipment during use of the cartridge, the container having container threads formed on an upstream end of the container and a lip with an annular inclined sealing surface located inward of the threads and inclined toward a longitudinal axis of the container; a polymer cap having an inlet port located on an upstream end of the container, the port being configured for connecting to chromatographic equipment during use of the cartridge, the cap having cap threads located on the cap to threadingly engage the container threads: a resilient fluid tight seal interposed between the cap and container, the seal comprising an annular seal located inward of the cap threads and having a cap sealing surface inclined in a second direction opposite to but generally aligned with the first direction to form a seal suitable for use in low pressure liquid chromatography.