The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 18, 2015

Filed:

Mar. 10, 2010
Applicants:

Norimasa Minamoto, Hitachinaka, JP;

Masahito Ito, Hitachinaka, JP;

Kisaburo Deguchi, Uchinada, JP;

Hiroyuki Tanai, Mito, JP;

Kiyotoshi Mori, Hitachinaka, JP;

Inventors:

Norimasa Minamoto, Hitachinaka, JP;

Masahito Ito, Hitachinaka, JP;

Kisaburo Deguchi, Uchinada, JP;

Hiroyuki Tanai, Mito, JP;

Kiyotoshi Mori, Hitachinaka, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 30/60 (2006.01);
U.S. Cl.
CPC ...
G01N 30/603 (2013.01);
Abstract

In a liquid chromatograph, the disulfide adsorption of iron atoms in a filter for a column is avoided and thus peak tailing in a chromatogram is prevented to thereby prevent a lowering in the sample recovery rate. A liquid chromatograph column comprising a hollow tubular column body, a bead-shaped packing material which is packed in the hollow part of the column body, a filter provided with a mesh which has a mesh size smaller than the particle diameter of the packing material, and a cap which presses the filter against the packing material to thereby enclose the packing material within the column body, characterized in that the main component of the filter is nickel or hastelloy.


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