| 摘要 |
PURPOSE:To analyze concentration efficiently with high accuacy by calculating the optical path length of a reactor previously, putting liquid to be inspected in the reactor and performing concentration measuring operation by the automatic conveyance of the reactor, and correcting the measured value of concentration with the optical path length of the reactor. CONSTITUTION:Numbers of reactors 3 are moved intermittently by a conveying means 2. Then, the reactors 3 are cleaned at a position (a) and pure water is put in the reactors 3 at a position (b); and they are irradiated with light with two absorption wavelength in a near infrared-ray wavelength range from an irradiating mirror 21 and the optical path length of the reactors 3 is calculated from different in light absorption and inputted to a storage device 30. Then, the water is discharged at a position (c) and the liquid 7 to be inspected is dispensed at a position (d). The reactors 3 are conveyed automatically in sequence and the liquid is irradiated at a position (e) through an irradiating mirror 22 for concentration measurement to measure the concentration, which is inputted to an operator 27. Then, the measured value of the liquid concentration is corrected as to the influence of the optical path length of the reactors which is stored in advance and displayed 28. Therefore, the measured value of the liquid concentration is only corrected with the optical path length of the reactors in series operation to take an analysis efficiently with high accuracy. |
