Analytical method and analytical apparatus using test strips

Details Analytical method and analytical apparatus using test strips Analytical method and analytical apparatus using test strips

1994-11-28

1995-10-24

Alexander, Lyle A.

Chemistry: analytical and immunological testing

Automated chemical analysis

With sample on test slide

436 47, 436 48, 422 62, 422 63, 422 8206, G01N 3502

Patent

active

054609682

ABSTRACT:
A sample container containing a urine sample is transferred by a sample positioning device to a liquid level sensing position. At this sensing position, the liquid level in the sample container is detected by a level sensor, followed by transfer of the sample container to a dipping position. A liquid level rising member is then inserted into the sample container. While being held by a handling device, a test strip is dipped into the sample in the sample container with the liquid level raised. Thereafter, the test strip is lifted out of the sample container and transferred to a measuring device. Color development in reagent sections on the test strip is measured by a photometer in terms of the reflected light strength. With the present invention, analysis using test strips can be implemented even when the sample volume into the sample container is small.

REFERENCES:
patent: 4451433 (1984-05-01), Yamashita et al.
patent: 4578588 (1986-03-01), Galkin
patent: 4876204 (1989-10-01), Inoue et al.

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