Liquid spotting method

Details Liquid spotting method Liquid spotting method

1996-09-04

1998-09-22

Le, Long V.

Chemistry: analytical and immunological testing

Automated chemical analysis

With aspirator of claimed structure

436 43, 436 46, 436 50, 436180, 422 63, 422 81, 422100, 7386411, 7386422, 7386424, G01N 3510

Patent

active

058113061

ABSTRACT:
A method of continuously spotting a liquid onto a predetermined number of members to be spotted with the liquid includes the steps of mounting a disposable spotting tip on a suction nozzle, sucking the liquid in the spotting tip in a predetermined amount larger than the predetermined number times the amount for one spotting and discharging the liquid onto the members in sequence by the amount for one spotting by introducing a predetermined discharge pressure into the spotting tip. A signal related to the vapor pressure in atmosphere is obtained and the discharge pressure is corrected according to the change in the vapor pressure inside the spotting tip after the liquid is sucked in the spotting tip so that the same amount of the liquid is discharged onto all the members.

REFERENCES:
patent: 4340390 (1982-07-01), Collins et al.
patent: 4452899 (1984-06-01), Alston
patent: 4675301 (1987-06-01), Charneski et al.
patent: 4794085 (1988-12-01), Jessop et al.
patent: 4971763 (1990-11-01), Columbus
patent: 5133392 (1992-07-01), Hamann
patent: 5143849 (1992-09-01), Barry et al.
patent: 5607861 (1997-03-01), Komatsu et al.

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