Liquid chromatograph and separation column

Details Liquid chromatograph and separation column Liquid chromatograph and separation column

2011-05-10

2011-05-10

Larkin, Daniel S (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

C073S061550, C073S061560, C210S198200

Reexamination Certificate

active

07937990

ABSTRACT:
A separation column and a liquid chromatograph using the separation column, which are capable of carrying out a high-speed analysis under high pressure and without a reduction in separation performance of the separation column. In the separation column, a sample and a mobile phase are introduced into a packing material. The chromatograph has a covering member for covering an outer surface of the packing material and a supporting member having the packing material covered with the covering member inserted therein, wherein the level of pressure generated within a gap located between the covering member and the supporting member on the outflow side of the gap, where the fluid-flows out of the gap, is lower than that of pressure generated within the gap on the inflow side of the gap, where the fluid is introduced.

REFERENCES:
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patent: 5601708 (1997-02-01), Leavesley
patent: 6238565 (2001-05-01), Hatch
patent: 2002/0166816 (2002-11-01), Allen et al.
patent: 11-064314 (1999-03-01), None

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