Patent ID: 7125489
Filing Date: 2006-10-24
Classification: G01N

Abstract:
1. A HPLC column ready to be connected and used in a liquid-tight serial flow circuit between capillary lines having externally threaded end fittings associated therewith, said column comprising an inner tube; absorbent filling the inner tube; a filter assembly across each inner tube end containing the absorbent; and end coupling members outwardly adjacent the filter assemblies; a cylindrical outer tube overlying all of the inner tube and each filter assembly, and an inward portion of each coupling member, all arranged in an axially aligned association; means cooperating between the outer tube and the underlying inward portion of each end coupling member for mechanically holding the outer tube and end coupling members together; each end coupling having an internally threaded opening suited to cooperate with a respective threaded end fitting, each filter assembly having a sealing bore sized to cooperate in liquid-tight association with a respective capillary line, and the opening and bore being concentrically arranged suited for mechanically connecting the end fittings and capillary lines in said liquid-tight flow connection through the column via the inner tube, absorbent and filter assemblies; and the outer tube cylindrical outer surface defining the maximum outer radial dimension of the column.