SYSTEM AND METHOD FOR DETECTING PERACTIC ACID AND HYDROGEN PEROXIDE VAPOR

• Main Authors: SCHWARTZ, Mason, BELLEVUE FAYE, Sherly, MURPHY, Kristopher, BAHNS, Ted, BUI, Huyen, BOURDON, Lisa, MATTA, John, NGUYEN, Tuan
• Format: Patent
• Language: English; French; German
• Published: 18.11.2020
• Subjects: CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES; DISINFECTION, STERILISATION, OR DEODORISATION OF AIR; HUMAN NECESSITIES; HYGIENE; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES; MEDICAL OR VETERINARY SCIENCE; METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL

The present invention relates to the detection vapor peracetic acid and hydrogen peroxide. It finds particular application in the sensing of vapor peracetic acid and hydrogen peroxide concentrations. The system includes (a) a source of peracetic acid vapor, hydrogen peroxide vapor, water vapor and acetic acid vapor, (b) a light source which is configured to supply light with at least a component in the mid-infrared range, and (c) a detector which is configured to individually detect mid-infrared range light in (i) a first mid-infrared spectrum absorbed by the peracetic acid vapor and not absorbed by the hydrogen peroxide vapor, the acetic acid vapor or the water vapor, and (ii) a second mid-infrared spectrum absorbed by the peracetic acid vapor and the hydrogen peroxide vapor.