Chemical analyzer, method for dispensing and dilution cup

Details Chemical analyzer, method for dispensing and dilution cup Chemical analyzer, method for dispensing and dilution cup

2011-03-01

2011-03-01

Griffin, Walter D (Department: 1774)

Chemistry: analytical and immunological testing

Including sample preparation

Volumetric liquid transfer

C436S179000, C436S518000, C436S050000, C436S051000, C436S165000, C422S063000, C422S064000, C422S065000, C422S091000, C422S105000, C422S068100, C422S105000

Reexamination Certificate

active

07897409

ABSTRACT:
A method for dispensing a sample solution and a reagent into a container in a chemical analyser includes a first step of dispensing a reagent into a container, a second step of dispensing a sample solution into the container after the first step, and a third step of dispensing the reagent into the container after the second step. A dilution cup includes an inner face where a diameter of a horizontal section increases on at least one position from a bottom to a top, an opening portion surrounding an opening, where a sample solution is dispensed, located on or near the top, a reagent aperture portion surrounding an aperture where a reagent is dispensed such that the sample solution and the reagent create an upswing spiral flow, and a drain aperture portion surrounding a drain aperture, where a mixed solution of the sample solution and the reagent is discharged, located on or near the bottom.

REFERENCES:
patent: 6333197 (2001-12-01), Le Comte et al.
patent: 6709632 (2004-03-01), Nakagawa et al.
patent: 2004/0121484 (2004-06-01), Betancourt et al.
patent: 61-56784 (1986-12-01), None
patent: 11094825 (1999-04-01), None
Machine translation of JP 11-094825 A, which was published on Apr. 9, 1999.

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