Method for quantitative analysis of analyte in liquid sample usi

Details Method for quantitative analysis of analyte in liquid sample usi Method for quantitative analysis of analyte in liquid sample usi

1989-02-15

1989-11-28

Lall, Parshotam S.

Boots, shoes, and leggings

364498, 364558, 36457101, 356243, 356431, 422 67, G01N 3502, G01N 2100

Patent

active

048842133

ABSTRACT:
In a method for quantitatively analyzing an analyte in a liquid sample by applying the liquid sample on one of a set of analytical elements and measuring a color developed in the analytical element through reflection photometory in which said set of analytical elements are the same elements as a standard element except for deviation of sensitivity to the analyte, but said deviation of sensitivity is essentially equivalent to each other among the set of analytical elements, the calibration curve of the standard element with respect to said analyte being predetermined, an improvement involving the preparation of a linear equation for defining a relationship between an optical reflection density value OD.sub.x to be measured on an analytical element belonging to said set of the analytical elements and an optical reflection density value OD.sub.s being predetermined on the standard analytical element, in which the optical reflection density values OD.sub.x and OD.sub.s are those to be determined on colors developed on the respective elements upon application of a liquid sample containing the analyte in the same content C.sub.x.

REFERENCES:
patent: 2554414 (1951-05-01), McClendon
patent: 4338279 (1982-07-01), Orimo et al.
patent: 4472505 (1984-09-01), Manabe et al.
patent: 4539296 (1985-09-01), Manabe
patent: 4587624 (1986-05-01), Banno
patent: 4678755 (1987-07-01), Shinohara et al.
patent: 4832488 (1989-05-01), HIrai et al.

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