Method of spotting sample liquid on dry chemical analysis film

Details Method of spotting sample liquid on dry chemical analysis film Method of spotting sample liquid on dry chemical analysis film

1995-12-07

1997-06-17

Le, Long V.

Chemistry: analytical and immunological testing

Automated chemical analysis

Condition or time responsive

436 46, 436 49, 436 54, 436 55, 436174, 436180, 422 63, 422 66, 422 67, 422100, G01N 3510

Patent

active

056396651

ABSTRACT:
When spotting a sample liquid onto a plurality of frameless chemical analysis films, a predetermined amount of the sample liquid is sucked into a spotting tip, the lower end of the spotting tip is brought into contact with the surface of each chemical analysis film and the pressure in the spotting tip is increased to discharge the sample liquid therein onto the surface of the chemical analysis film while lifting the spotting tip away from the surface of the film. When a first chemical analysis film includes a component which can deteriorate the accuracy of measurement of the analyte for the second frameless chemical analysis film, the sample liquid is spotted, before the second chemical analysis film after the first chemical analysis film, on a third frameless chemical analysis film which does not include a component which can deteriorate the accuracy of measurement of the analyte of the second chemical analysis film and the analyte of which is not such that the accuracy of its measurement is substantially affected by a component of the first chemical analysis film which can be transferred to the third chemical analysis film.

REFERENCES:
patent: 4340390 (1982-07-01), Collins et al.
patent: 4452899 (1984-06-01), Alston
patent: 5081038 (1992-01-01), Sugaya et al.
patent: 5133392 (1992-07-01), Hamann
patent: 5143849 (1992-09-01), Barry et al.
patent: 5204268 (1993-04-01), Matsumoto
patent: 5334353 (1994-08-01), Blattner
Patent Abstracts of Japan, vol. 008, No. 252, Nov. 17 1984 & JP A 59 122955 (Shimazu Seuisakusho KK).

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