MULTILAYER ANALYTICAL ELEMENT

摘要

A multilayer analytical element for analysis of analyte in a liquid sample, characterized in that the element comprises: (I) a porous spreading layer for spreading the liquid sample; (II) a porous reagent layer provided in fluid contact with said spreading layer which contains a reagent producing or changing colour by reaction with the analyte; and (III) a liquid-impermeable, light-transmissive support supporting said reagent layer. A registration layer for receiving a color reaction product or a color-change reaction product produced by the reaction between the analyte and the reagent can be provided in fluid contact with said reagent layer.