Method for constituent analysis with thin-layer reactant...

Details Method for constituent analysis with thin-layer reactant... Method for constituent analysis with thin-layer reactant...

G - Physics

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G01N 33/48 (2006.01) C12Q 1/00 (2006.01) G01N 21/64 (2006.01) G01N 21/86 (2006.01) G01N 33/52 (2006.01)

Patent

CA 1040078

ABSTRACT OF THE DISCLOSURE The present invention provides an analysis procedure in which reagents and a sample solution in an optically-thin layer chemically react to produce a reaction product that is a known measure of a constituent in the sample solution. Use is made of fibrous sheets which are essentially non-absorbing and uniform in structure within and contiguously beyond the reaction site to generally eliminate the need of using confined test sites. The layer is examined under electromagnetic radiation with a sensing means that responds in a linear manner to the concentration of a selected constituent-manifesting product of the reaction. The invention enables such measurements to be made repeatedly with precision even when the spatial distributions of the material being analysed and of the reaction- producing reagents over the thin layer both are not uniform and differ from one another, provided that the distributions are the same for successive samples.

168313

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