Method and apparatus for the spectrophotometric assay of aqueous

Details Method and apparatus for the spectrophotometric assay of aqueous Method and apparatus for the spectrophotometric assay of aqueous

1993-12-08

1995-09-26

Fields, Carolyn E.

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Invisible radiant energy responsive electric signalling

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25033903, 25033904, 250343, 250910, G01N 2125, G01N 2135

Patent

active

054536197

ABSTRACT:
Method and apparatus for the spectrophotometric assay of aqueous liquids are provided with a pump for aspirating liquids, a filter with two outlets for filling a cell in which the interferometric measurements are made at a temperature between 35 and 50.degree. C. at a maximum fluctuation of 0.2.degree. C., and with a maximum relative humidity of 0.2%. Absorption curves A(f) are determined with respect to a matrix and the concentrations of components to be assayed are calculated by the use of standard equations.

REFERENCES:
patent: 4825076 (1989-04-01), Shields
patent: 4963743 (1990-10-01), Satake et al.
patent: 5091649 (1992-02-01), Rantala
patent: 5252829 (1993-10-01), Nygaard et al.
patent: 5258620 (1993-11-01), Sueyasu et al.
Fuller, et al., "Partial Least-Square Quantitative Analysis of Infrared Spectroscopic Data. Part I: Algorithm Implementation", Applied Spectroscopy, vol. 42, No. 2 (1988), pp. 217-227.

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