METHOD FOR CALIBRATING MEASURED VALUE OF DRY TYPE ANALYSIS ELEMENT

PROBLEM TO BE SOLVED: To calibrate the measurement value near a cut-off value with higher precision by weighting a display value of a fixed concentration range, among multiple calibration liquids, and its measurement value, for obtaining a calibration curve. SOLUTION: A calibration liquid having at least three levels of known concentration indication values is dropped onto multiple dry type analysis elements, and the same assay is performed, for measuring a reflection optical concentration. The concentration is referred to a stored basic analytical curve from a maker, and a measurement value far a to-be-examined component in each calibration liquid is obtained, and a calibration curve is drawn based on a known concentration for the to-be-examined component, etc. Here, the data of calibration liquid of the level of a concentration value near the proximity having medically meaningful value is weighted by increasing assay times, etc. With each data obtained, a regression function of calibration curve is obtained, and its each coefficient is stored in a magnetic card and supplied to users, and stored in the memory of the device. Thus, the load on a user is least and measurement of high precision is possible even when a medical meaningful value is used as a cut-off value.