Quantitative analysis method and its system using a disposable sensor

A quantitative analysis system comprising:

• means for applying a reaction voltage to a sensor;
• means for detecting that a sample liquid is supplied to said sensor;
• means for interrupting the reaction voltage based on said detection;
• means for reapplying said reaction voltage to said sensor after a specified time period;
• means for detecting a reaction state of said sensor due to reapplication of said reaction voltage;
• and
• means for displaying the reaction state.

A quantitative analysis system comprising:

• disposable sensor means, including a capillary shaped portion and an enzyme portion, for receiving a sample liquid for analysis;
• control means, including a connector for said disposable sensor means, for allowing enzymes in said enzyme portion and the sample liquid to react in an absence of a reaction voltage, for automatically applying the reaction voltage to the reaction after a specified time period, and for measuring an oxidation current indicative of a concentration of a constituent part of the sample liquid;
• and
• calibrating and testing means for calibrating and testing said system without key operation.