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AssigneeHitachi High-Technologies Corporation
InventorsKatsutoshi Shimizu, Masahito Ito, Kimihiko Ishii, Yoshihiro Nagaoka, Kisaburo Deguchi, Takefumi Yokokura
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Both a column having high-pressure resistance and capable of performing high-speed separation and analysis even with a small flow rate and a liquid chromatograph apparatus using the column are provided. A separation column according to the present invention has a monolithic rod being arranged in the center, being made of a porous material, and having a circular cross section, a filler layer arranged such that it encircles a circumferential surface of the monolithic rod, and a cylindrical support medium arranged outside the filler layer. The filler layer is formed by filling a tube-like gap between the monolithic rod and the support medium with particles or beads.
A separation column for a liquid chromatograph apparatus having a monolithic rod being arranged in a center and made of a porous body and having an uneven outer surface, a filler layer arranged such that it encircles the monolithic rod, a cylindrical support medium arranged outside the filler layer, a filter positioned on the end of the monolithic rod, and a sealant arranged on the outer circumference of the filter, wherein:
Dependencies are inferred from the claim text.