Micro-reactor, dissociation constant measuring apparatus, dissociation constant measuring method, and dissociation constant measuring program

摘要

In order to make it possible to predict a dissociation constant at an initial stage of reaction, a concentration sensor (9) for a sample is provided on a downstream side of a mass sensor (7). This makes it possible to learn concentration of a sample solution at the time when a mass is detected by the mass sensor. When the concentration and the mass are substituted in a predetermined logical expression, it is possible to obtain a predicted value of a dissociation constant. The concentration sensor (9) is a capacitor constituted by electrodes (21,22) opposed to each other. Since a dielectric constant changes when analytes are present between the electrodes, it is possible to detect analyte concentration according to the dielectric constant. Since it is possible to reduce a size of the capacitor, it is possible to keep a size of a micro-reactor (1) small. Note that the mass sensor outputs a resonance frequency of a quartz resonator. A measuring apparatus can calculate a mass from transition of this frequency.