Title:
COLORING FILM CARRYING PHOSPHORIC ACID REACTIVE REAGENT, AND PHOSPHORIC ACID CONCENTRATION MEASURING DEVICE USING COLORING FILM CARRYING PHOSPHORIC ACID REACTIVE REAGENT
Document Type and Number:
Japanese Patent JP2002040010
Kind Code:
A
Abstract:
To solve the problems in conventional phosphoric acid concentration measurement that measuring treatment is complicated because a wet measuring device using a liquid reagent is used and that the system is limited because comparison determination is executed by visual observation by a person.
A dry coloring film formed by carrying a reagent for developing a color by reacting with phosphoric acid on a transparent film is used, and the coloring film is dipped in a test body solution, and then optical absorptivity is measured, to thereby quantitate the phosphoric acid concentration in the test body solution.
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Inventors:
NONOGAMI HIROSHI
Application Number:
JP2000222909A
Publication Date:
February 06, 2002
Filing Date:
July 24, 2000
Export Citation:
Assignee:
SANYO ELECTRIC CO
International Classes:
G01N31/22; G01N31/00; (IPC1-7): G01N31/22; G01N31/00
Attorney, Agent or Firm:
Masano Shibano
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