Patent ID: 6642058
Filing Date: 2003-11-04
Classification: G01N

Abstract:
An analysis method using a dry chemical analysis element, wherein the method comprises:dripping a liquid sample onto the dry chemical analysis element comprising a reagent layer; measuring a change in optical density of a reacted portion on the dry chemical analysis element where color reaction between the liquid sample and the reagent layer has occurred; and determining physical density or activity of a specific biochemical component contained in the liquid sample; wherein measuring the change in the optical density comprises: measuring one-dimensional distribution of the change in the optical density along a straight line crossing a central portion of the reacted portion by causing a one-dimensional optical reading apparatus to scan the straight line; and measuring a length of the reacted portion along the straight line crossing the central portion of the reacted portion using the one-dimensional optical reading apparatus; and wherein the physical density or the activity is determined based on an integrated value of the change in the optical density and the measured length of the reacted portion.