Diffusion promoting device for low flow velocity gradient...

Liquid purification or separation – With means to add treating material – Chromatography

Reexamination Certificate

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C210S656000, C210S659000

Reexamination Certificate

active

10876472

ABSTRACT:
Device for improving detection sensitivity in low flow velocity high performance liquid chromatographic apparatus. Preferredly, diffusion promoting device connected at just before separation column and having function of improving detection sensitivity for use in low flow velocity high performance liquid chromatographic apparatus. Also, method for improving detection sensitivity in low flow velocity high performance liquid chromatographic apparatus.

REFERENCES:
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patent: 4942018 (1990-07-01), Munk
patent: 5117109 (1992-05-01), Asakawa et al.
patent: 6780325 (2004-08-01), Murata et al.
patent: 91 07 564 (1991-09-01), None
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patent: 0 377 202 (1990-07-01), None
patent: 59-94064 (1984-05-01), None
patent: 60183554 (1985-09-01), None
patent: 62-241532 (1987-10-01), None
patent: 2-32931 (1990-03-01), None
patent: 3-277966 (1991-12-01), None
patent: WO 96/26000 (1996-08-01), None
Snyder, Introduction to Modern Liquid Chromatography, 1979, John Wiley and Sons, Inc., pp. 560-561.
Abstract of Japan Patent No. 3-175355 published Jul. 30, 1991.
Abstract of WO 97/03070 Jan. 30, 1997.

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