Patent ID: 6923908

Claim:
A filter apparatus for use in liquid chromatography systems, said filter apparatus comprising: (a) a connection means having an open channel formed therethrough, which channel is configured to operably and sealingly receive fluid transfer tubing in at least a first end thereof; (b) a filtering means comprising a mesh element of between about 0.01 and about 1.0 mm in thickness, and having a plurality of apertures disposed therein, such apertures being between about 0.2 and about 30 micrometers in mean diameter; and (c) a securement means configured to matingly and sealingly engage with said connection means such that said filtering means is operably disposed and secured between said connection means and said securement means adjacent to and superimposed over a second open end of said channel, said filter apparatus being adapted to operably filter chromatographic fluids being drawn through said channel from said second open end and into the fluid transfer tubing.