Fluid handling apparatus

Details Fluid handling apparatus Fluid handling apparatus

2006-06-19

2009-12-29

Bell, Bruce F (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrophoretic or electro-osmotic apparatus

C204S451000, C422S068100, C422S081000, C422S091000, C422S105000, C422S105000, C137S814000, C137S833000

Reexamination Certificate

active

07638025

ABSTRACT:
When a first liquid fed into a first flow passage6moves therein toward a connecting portion10due to capillarity, gas in the first flow passage6is pushed by the moving first liquid to be exhausted to the external environment via a third flow passage14and an external environment communication passage8, so that the first liquid moves to the end of a fifth flow passage16, which is formed in the connecting portion10, on the side of a second flow passage7due to capillarity. Then, when a second liquid fed into the second flow passage7moves therein toward the connecting portion10due to capillarity, gas in the second flow passage7is pushed by the moving second liquid to be exhausted to the external environment via a fourth flow passage15and the external environment communication passage8, so that a liquid-liquid interface level between the first and second liquids is formed in the connecting portion10.

REFERENCES:
patent: 4983038 (1991-01-01), Ohki et al.
patent: 7338584 (2008-03-01), Ono
patent: 2004/0184964 (2004-09-01), Watanabe et al.
patent: 2005/0019794 (2005-01-01), Nassef et al.
patent: 2007/0199603 (2007-08-01), Ono
patent: 2004-163104 (2004-06-01), None
patent: 2005-114433 (2005-04-01), None
Single Step Concentration and Sequence-Specific Separation of DNA By Affinity Microchip Electrophoresis (8th International Conference on Miniaturized Systems For Chemistry and Life Sciences, Sep. 26-30, 2004.

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