| 摘要 |
The present invention relates to a liquid analyzer provided with: a reference electrode S3 that is provided with internal liquid S33 containing a halide ion; and an ion electrode S1 of which a measurable concentration range for a measuring target ion is lower than the concentration of the halide ion in the internal liquid of the reference electrode S3, wherein: the internal liquid S13 of the ion electrode S1 contains the measuring target ion and a halide ion; and the internal liquid S13 of the ion electrode S1 is liquid in which the concentration of the measuring target ion and the concentration of the halide ion in the internal liquid S13 of the ion electrode S1 are regulated such that an osmotic pressure and an isothermal point of the internal liquid S13 of the ion electrode S1 respectively have desired values, and the isothermal point is included in the measurable concentration range, and the concentration of the halide ion is different from the concentration of the halide ion in the internal liquid S33 of the reference electrode S3. |
