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:
Feb. 03, 2004
Filed:
Sep. 21, 2001
Ebara Corporation, Tokyo, JP;
Abstract
The present invention provide a method and an apparatus for detecting anions in water which does not require replacement of ion exchange resins and the like and can perform precise measurement at low cost in a simple operation. The apparatus for detecting anions in water according to the present invention is an apparatus for detecting anions in water with the use of an electric conductivity cell and is constituted by an electrolyzer having an anode chamber having an anode plate and a cation chamber having a cathode plate via a cation exchange membrane, a direct-current power unit for applying a direct-current voltage between the anode and the cathode of the electrolyzer and an electric conductivity cell for measuring the electric conductivity of a sample water, and a flow passage for introducing a sample water into the anode chamber and a treated water flow passage for discharging the treated water which has been subjected to electrolytic treatment in the anode chamber which are connected to the anode chamber, respectively, and the treated water flow passage being connected to the cathode chamber via an electric conductivity cell.