Chemistry: analytical and immunological testing – Automated chemical analysis – With conveyance of sample along a test line in a container...
Patent
1981-04-29
1984-09-18
Marcus, Michael S.
Chemistry: analytical and immunological testing
Automated chemical analysis
With conveyance of sample along a test line in a container...
364498, 422 65, 422 67, G01N 3500, G01N 3348, G01N 2100
Patent
active
044725051
ABSTRACT:
A method of enhancing the accuracy and reliability of a chemical analysis, wherein a reaction is carried out by combining a sample liquid with at least one reagent to form a test liquid and the test liquid is photometrically scrutinized a plurality of times over an extended period of time to derive a number of photometric values. The derived values are then stored and a plurality of the stored photometric values are preliminarily selected from a given time frame, wherein the plurality of preliminarily selected values are less than a total number of stored photometric values. Successive preliminarily selected photometric values are compared with at least one predetermined standard to derive a comparison result and upon indication that useful data cannot be calculated from the preliminarily selected photometric values, a secondarily selecting step of selecting at least one photometric value from all of the stored photometric values, which were not preliminarily selected, is used to derive an analytical result which represents a concentration of a chemical substance in the test liquid or an activity of the test liquid.
REFERENCES:
patent: 3639738 (1972-02-01), Laukien
patent: 3902052 (1975-08-01), Amar
patent: 4140394 (1979-02-01), Roos
patent: 4234538 (1980-11-01), Ginsberg et al.
patent: 4236894 (1980-12-01), Sommervold
patent: 4338279 (1982-07-01), Orimo et al.
Laboratory Medicine, vol. 5, No. 5, May 1974, pp. 34-36.
Banno Taiichi
Gocho Nagahiro
Manabe Sugio
Orimo Ryoichi
Sakurada Masahiko
Marcus Michael S.
Olympus Optical Co,. Ltd.
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