In a dry-type multilayer analytical element containing a color reagent composition comprising an oxidase specifically reacting with an analyte or derived therefrom to produce hydrogen peroxide, hydrogen peroxide-decomposing enzyme, an alkali metal salt of ferrocyanide and a chromogen, this chromogen is separated from the hydrogen peroxide-decomposing enzyme, and the chromogen is incorporated in a layer nearer than the layer containing the hydrogen peroxide-decomposing enzyme to the transparent support of the analytical element.
This analytical element is excellent in coloration, particularly stability of the color formed, and its result is accurate. Moreover, the results is hardly influenced by the presence of hemoglobin in a sample.
在一种干式多层分析元件中,含有一种颜色试剂组合物,该试剂组合物包括与分析物发生特异性反应或由分析物衍生产生
过氧化氢的氧化酶、
过氧化氢分解酶、亚
铁的碱
金属盐和一种发色剂,这种发色剂与
过氧化氢分解酶分离,发色剂被置于比含有
过氧化氢分解酶的层更靠近分析元件透明支架的层中。 这种分析元件的着色效果非常好,特别是所形成的颜色的稳定性,而且结果准确。 此外,其结果几乎不受样品中血红蛋白存在的影响。