申请人:ARS Holding 89 N.V.
公开号:EP0249357A2
公开(公告)日:1987-12-16
The present invention relates to enzyme immunoassays employing one or more enzyme label-substrate pairs which give rise to coloured products and in which absorption by the product of substrate conversion by at least one enzyme label at a first wavelength, at or close to the optimum wavelength for absorbance, exceeds the linear range of the detector, which immunoassay includes the steps of measuring the said substrate conversion at a second wavelength at which absorbance by the relevant product is significantly lower than at the said first wavelength and calculating the true absorbance at the said first wavelength by utilizing the result of linear regression analysis of absorbance measurements obtained with product standards at the said first and second wavelengths within the linear range of the detector.
本发明涉及采用一种或多种酶标记-底物对的酶免疫测定,这些酶标记-底物对可产生有色产物,在第一波长处,底物被至少一种酶标记转化的产物在吸光度最佳波长处或接近最佳波长处的吸光度超过检测器的线性范围,该免疫测定包括以下步骤:在第二波长处测量所述底物转化,在该第二波长处相关产物的吸光度明显低于所述第一波长处的吸光度;在检测器的线性范围内,利用产品标准在所述第一和第二波长处的吸光度测量值的线性回归分析结果,计算所述第一波长处的真实吸光度。