The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 06, 2003
Filed:
Feb. 07, 2000
Iain F. McVey, Lakewood, OH (US);
Brian J. DeSantis, Chicago, IL (US);
Jan J. Lewandowski, South Euclid, OH (US);
Karen L. Thomas, Eastlake, OH (US);
Brian E. Schindly, Mentor, OH (US);
Steris Inc., Temecula, CA (US);
Abstract
An electrochemical sensor (A, A′) is specific for the detection of peroxyacetic acid in a solution which also contains hydrogen peroxide. A potential is applied between a reference electrode ( ′) and a working electrode ( ′). A read voltage (FIG. ) is selectively pulsed across a counter electrode ( ′) and the working electrode. The current flowing between the working electrode and the counter electrode is dependent on the peroxyacetic acid concentration in the solution (FIG. ). By careful selection of the read voltage, the contribution of hydrogen peroxide to the current flow is virtually negligible. The sensor effectively measures peroxyacetic acid concentrations in the range generally employed in sterilization and disinfection baths (100-3000 ppm.).