Mobile phase supplying apparatus, liquid chromatograph using...

Details Mobile phase supplying apparatus, liquid chromatograph using... Mobile phase supplying apparatus, liquid chromatograph using...

2006-03-17

2009-06-23

Therkorn, Ernest G (Department: 1797)

Liquid purification or separation

With means to add treating material

Chromatography

C210S101000, C210S143000, C210S659000

Reexamination Certificate

active

07550081

ABSTRACT:
In liquid-feeding sections for feeding two types of mobile phases A, B, respectively, actual flow rate measuring sections capable of detecting back-flows are provided in downstream of liquid-feeding pumps, respectively. Control devices control driving of the liquid feeding pumps, respectively, so that measured flow rates by the actual flow rate measuring sections correspond to set flow rates on the liquid-feeding flow paths, respectively. In a case where the set flow rate is zero, when either of the actual flow rate measuring sections detects the back-flow, the corresponding liquid-feeding pump is driven so as to prevent the back-flow.

REFERENCES:
patent: 4239623 (1980-12-01), Schrenker
patent: 4595495 (1986-06-01), Yotam et al.
patent: 4595496 (1986-06-01), Carson
patent: 4882063 (1989-11-01), Allington et al.
patent: 5080785 (1992-01-01), Allington et al.
patent: 5360320 (1994-11-01), Jameson et al.
patent: 5468643 (1995-11-01), Su et al.
patent: 6780315 (2004-08-01), Richardson et al.
patent: 6793815 (2004-09-01), Hoffmann
patent: 6860137 (2005-03-01), Kitagawa
patent: 7141161 (2006-11-01), Ito
patent: 7186336 (2007-03-01), Gerhardt et al.
patent: 2004/0108273 (2004-06-01), Richardson et al.
patent: 2005/0098487 (2005-05-01), Ito
patent: 2006/0213837 (2006-09-01), Kitagawa
patent: 2006/0219618 (2006-10-01), Witt et al.
patent: 2007/0034557 (2007-02-01), Ito
patent: 2003-98166 (2003-04-01), None
PTO Translation No. 2006-3692 of Japan Patent No. 2002-98155 pp. 1-48 Apr. 2006.

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