| abstract |
An analytical element which comprises (a) a light-transmissive and liquid-impermeable support, (b) at least one reagent layer containing at least one reagent reactive with a component in a liquid sample and being constituted of a hydrophilic colloid, and (c) at least one developing layer of a fibrous structure being positioned on said reagent layer on the side opposite to said support for permitting the component in said liquid sample to permeate therethrough toward said reagent layer and having been formed by coating said reagent layer with a dispersion comprising an organic macromolecular polymer having reactive groups and a fibrous material. |