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1. WO2021039393 - PERACETIC ACID CONCENTRATION METER

Publication Number WO/2021/039393
Publication Date 04.03.2021
International Application No. PCT/JP2020/030658
International Filing Date 12.08.2020
IPC
G01N 27/404 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
403Cells and electrode assemblies
404Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid
G01N 27/416 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electro-chemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
416Systems
CPC
G01N 27/404
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
403Cells and electrode assemblies
404Cells with anode, cathode and cell electrolyte on the same side of a permeable membrane which separates them from the sample fluid ; , e.g. Clark-type oxygen sensors
G01N 27/416
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
27Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
26by investigating electrochemical variables; by using electrolysis or electrophoresis
416Systems
Applicants
  • 株式会社堀場アドバンスドテクノ HORIBA ADVANCED TECHNO, CO., LTD. [JP]/[JP]
Inventors
  • 川口 佳彦 KAWAGUCHI, Yoshihiko
  • 甲斐 智子 KAI, Satoko
Agents
  • 西村 竜平 NISHIMURA, Ryuhei
Priority Data
2019-15583828.08.2019JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) PERACETIC ACID CONCENTRATION METER
(FR) DISPOSITIF DE MESURE DE CONCENTRATION D'ACIDE PERACÉTIQUE
(JA) 過酢酸濃度計
Abstract
(EN)
Provided is a peracetic acid concentration meter wherein fouling of a working electrode surface by organic matter is suppressed, allowing the peracetic acid concentration to be measured more accurately than in the prior art. The invention provides a diaphragm-type peracetic acid concentration meter for measuring the peracetic acid concentration in a sample solution, said peracetic acid concentration meter being characterized by comprising a diaphragm that is permeable to peracetic acid; an internal solution for dissolving the peracetic acid that has permeated through the diaphragm; a working electrode and a counter electrode immersed in the internal solution; and a permeation suppression layer, layered on the diaphragm surface that is on the side in contact with the sample solution, for suppressing the permeation of organic matter.
(FR)
L'invention concerne un dispositif de mesure de concentration d'acide peracétique dans lequel l'encrassement d'une surface d'électrode de travail par une matière organique est supprimé, permettant une mesure de concentration en acide peracétique plus précise que dans l'état de la technique. L'invention concerne un dispositif de mesure de concentration d'acide peracétique de type diaphragme servant à mesurer la concentration d'acide peracétique dans une solution d'échantillon, ledit dispositif de mesure de concentration d'acide peracétique étant caractérisé en ce qu'il comprend un diaphragme qui est perméable à l'acide peracétique, une solution interne destinée à dissoudre l'acide peracétique ayant traversé le diaphragme, une électrode de travail et une contre-électrode immergées dans la solution interne, et une couche de suppression de perméation, déposée sur la surface du diaphragme qui se trouve en contact avec la solution de l'échantillon, afin de supprimer la perméation de la matière organique.
(JA)
有機物による作用極表面の汚れを抑制して、従来よりも精度よく過酢酸濃度を測定することができる過酢酸濃度計を提供する。試料溶液の過酢酸濃度を測定する隔膜式の過酢酸濃度計であって、過酢酸を透過する隔膜と、前記隔膜を透過した過酢酸が溶解する内部液と、前記内部液に浸漬する作用極及び対極と、前記隔膜の試料溶液と接する側の表面に積層され、有機物の透過を抑制する透過抑制層とを具備することを特徴とする過酢酸濃度計とした。
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