Dry reagent strip configuration, composition and method for multiple analyte determination

摘要

An assay device, analytical instrument and assay method for determining the presence or amount of an analyte in a fluid is disclosed. The device is a one-step lateral flow dry reagent immunoassay with one, two or more zones along a transverse axis of the device, each zone can contain or be preceded by diffusively or non-diffusively bound reagents. The invention measures an indicator in one or two test zones for each analyte to determine its presence or concentration. The signal reagent (indicator) may be a particle such as a colored latex or colloidal gold. The assay quantitation may be read by an instrument.