COLORING FILM CARRYING PHOSPHORIC ACID REACTIVE REAGENT, AND PHOSPHORIC ACID CONCENTRATION MEASURING DEVICE USING COLORING FILM CARRYING PHOSPHORIC ACID REACTIVE REAGENT

摘要

PROBLEM TO BE SOLVED: 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.;SOLUTION: 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.;COPYRIGHT: (C)2002,JPO