Metering doses of sample liquids

Details Metering doses of sample liquids Metering doses of sample liquids

2010-09-01

2011-10-25

Gordon, Brian R (Department: 1773)

Chemistry: analytical and immunological testing

Including sample preparation

Volumetric liquid transfer

C422S501000, C422S514000, C422S524000, C073S863320, C073S864000, C073S864010

Reexamination Certificate

active

08043865

ABSTRACT:
A device and method of metering and mixing a dose of a sample liquid with a diluent liquid includes introducing a sample liquid into a channel defined in a housing. The housing defines a pocket open to the channel and sized to both collect a metered dose of the sample liquid, and to retain the collected dose by capillary force when the channel is emptied. The sample liquid is then removed from the channel under conditions that enable retention of the collected, metered dose of the sample liquid in the pocket. Following a cleaning step, a volume of diluent liquid is introduced into the channel to induce diffusion and mixing of the diluent liquid with the dose of sample liquid to form a mixture.

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Pessenda, Garcia, P. “European Search Report”, European Patent Office, Appl. No. 11003860.1—1270, mailed on Jul. 12, 2011 (7 pages).

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