Concentration measurement method and concentration measurement apparatus

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United States of America Patent

PATENT NO 8933404
APP PUB NO 20120242979A1
SERIAL NO

13425537

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A concentration measurement method by an absorptiometric method which measures a concentration of a first solute component dissolved in a solution, in which the first solute component interacts with a solvent, includes: referring to an absorption coefficient (μaw(λ)) of the solvent; measuring an absorption coefficient (μa(λ)) of a first sample material, after an interaction between the solvent and the first solute component has occurred; and obtaining an unknown volume fraction (vg) of the first solute component and a volume fraction (vw) of the solvent, based on the absorption coefficient (μaw(λ)) of the solvent, a apparent absorption coefficient (μ′ag(λ)) of the first solute component, and the absorption coefficient (μa(λ)) of the first sample material.

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Patent Owner(s)

  • NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY;SEIKO EPSON CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Amano, Kazuhiko Tokyo, JP 66 3586
Nishida, Kazuhiro Nagano, JP 87 991
Shimizu, Koichi Hokkaido, JP 124 1235

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