초록 ▼

A multilayer element for the analysis of a liquid containing an analyte comprising a reaction layer which retains a predetermined amount of a diffusible reagent containing a detectable species; said reagent adapted to be rendered substantially non-diffusible by said analyte as a function of the conc

A multilayer element for the analysis of a liquid containing an analyte comprising a reaction layer which retains a predetermined amount of a diffusible reagent containing a detectable species; said reagent adapted to be rendered substantially non-diffusible by said analyte as a function of the concentration of said analyte; a registration layer adapted to receive reagent diffusing thereto; means for detecting said reagent in said registration layer and an insulating layer intermediate said reaction layer adapted to provide discrimination between detectable species in said reagent layer and said registration layer.

대표청구항 ▼

A method for analyzing an analyte in a liquid which comprises adding said liquid to an element comprising a plurality of layers including a reaction layer and a registration layer; said reaction layer containing a predetermined amount of a diffusible reagent containing a detectable species, said dif

A method for analyzing an analyte in a liquid which comprises adding said liquid to an element comprising a plurality of layers including a reaction layer and a registration layer; said reaction layer containing a predetermined amount of a diffusible reagent containing a detectable species, said diffusible reagent being present in an amount in excess of that reactable with an analyte to be determined; said reagent being rendered non-diffusible by said analyte as a function of the concentration of said analyte; said registration layer adapted to receive reagent diffusing thereto; and measuring the quantity of reagent diffusion to said registration layer.