Method for quantitative analysis of analyte in liquid sample using analytical element.

摘要

In a method for quantitatively analyzing an analyte in a liquid sample by applying the liquid sample on one of a set of analytical elements and measuring a color deve­loped in the analytical element through reflection photo­metory in which said set of analytical elements are the same elements as a standard element except for deviation of sensitivity to the analyte, but said deviation of sen­sitivity is essentially equivalent to each other among the set of analytical elements, the calibration curve of the standard element with respect to said analyte being pre­determined, an improvement involving preparation of a linear equation for defining a relationship between an optical reflection density value OD<Sub>x</Sub> to be measured on an analytical element belonging to said set of the analytical elements and an optical reflection density value OD<Sub>s</Sub> being predetermined on the standard analytical element, in which the optical reflection density values OD<Sub>x</Sub> and OD<Sub>s</Sub> are those to be determined on colors developed on the respec­tive elements upon application of a liquid sample contain­ing the analyte in the same content C<Sub>x</Sub>.