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1. WO2021039392 - PERACETIC ACID CONCENTRATION METER

Publication Number WO/2021/039392
Publication Date 04.03.2021
International Application No. PCT/JP2020/030656
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
2019-15583728.08.2019JP
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 with which it is possible to precisely measure the concentration of peracetic acid while minimizing errors from hydrogen peroxide. This peracetic acid concentration meter is of a diaphragm type for measuring peracetic acid concentration in a sample solution, and is characterized by being equipped with: a diaphragm pervious to peracetic acid; an internal liquid in which the peracetic acid that has passed the diaphragm is dissolved; a working electrode and a counter electrode that are immersed in the internal liquid; and a catalyst that decomposes hydrogen peroxide present in the internal liquid.
(FR)
L'invention concerne un dispositif de mesure de la concentration d'acide peracétique avec lequel il est possible de mesurer avec précision la concentration d'acide peracétique tout en réduisant au minimum les erreurs dues au peroxyde d'hydrogène. Ce dispositif de mesure de la concentration d'acide peracétique est du type à diaphragme pour mesurer la concentration en acide peracétique dans une solution d'échantillon, et est caractérisé en ce qu'il est équipé des éléments suivants : un diaphragme perméable à l'acide peracétique ; un liquide interne dans lequel est dissous l'acide peracétique ayant traversé le diaphragme ; une électrode de travail et une contre-électrode immergées dans le liquide interne ; et un catalyseur servant à décomposer le peroxyde d'hydrogène présent dans le liquide interne.
(JA)
過酸化水素による誤差をできるだけ小さく抑えて、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、前記内部液中に含まれる過酸化水素を分解する触媒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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