METHOD FOR MEASURING CONCENTRATIONS OF CHEMICAL SUBSTANCES, METHOD FOR MEASURING CONCENTRATIONS OF ION SPECIES, AND SENSOR THEREFOR

摘要

A method for measuring the concentrations of chemical substances simultaneously even if it is difficult for conventional methods to measure them because a plurality of chemical substances to be measured are present and/or because the slope of the working curve of a chemical substance to be measured approaches zero. The method comprises a step of measuring the outputs corresponding to the chemical substances of known concentrations for a plurality of concentrations by means of a system capable of measuring the outputs corresponding to the concentrations of the chemical substances to be measured, a step of allowing learning of the results by a back-propagation method, a step of measuring the output of a sample, a step of determining, by network inversion, solution candidates which are the sets of expected numerical values for which the measured outputs are predicted, and a step of finding the numerical values for which the solution candidates of the concentrations of the chemical substances to be measured are duplications. A method for measuring the concentrations of ion species to which the chemical substance concentration method is applied and a sensor therefor are also disclosed.