試料水中含有物の吸光度を算出する方法及び吸光度算出装置

Japanese Patent JP6851343

B2

To improve the calculation accuracy of absorbance.SOLUTION: A method conducts spectral analysis of light from a light emitting element 27 to separate it to a reference light and an incident light, it calculates the absorbance of the sample water content based on the reference light intensity, the intensity ratio A between this and the distilled water transmitted light intensity, the reference light intensity, and transmitted light intensity are measured respectively when a calibration transmission member 55 is located at an insertion position and an evacuation position in a state in which the sample water absorbance is known in a measurement cell unit 12, thus a filter absorbance of the calibration transmission member 55 calculates a gap coefficient β based on a gap Z defined before and after the calibration transmission member 55, and the intensity ratio A is corrected so that the absorbance calculated from the transmitted light intensity when the calibration transmission member 55 is located at the insertion position equals the total of the filter absorbance multiplied by the gap coefficient β of the absorbance calculated from the transmitted light intensity when the calibration transmission member 55 is located in the evacuation position in a state in which the sample water to be measured is in the cell unit 12.SELECTED DRAWING: Figure 3

Junpei Kuno
Shozo Nakao
Takeshi Mochida
Yasuhiro Nagasawa

JP2018076950A

March 31, 2021

April 12, 2018

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JFE Advantech Co., Ltd.

G01N21/59; G01N21/01; G01N21/15

JP4919003B2
JP2007322206A
JP60128333A
JP2003166936A
JP4012250A
JP4093638A

US20120038925
WO2010121909A1

Michiko Matsutani
Yoshiyuki Maebori
Kawasaki Shigeo

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