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:
Jun. 22, 1976
Filed:
Jan. 19, 1972
John H Riseman, Cambridge, MA (US);
Martin Frant, Newton, MA (US);
Orion Research Incorporated, Cambridge, MA (US);
Abstract
A system for electrochemical monitoring for the appearance of an ionic species of interest in a first flow stream by merging the first flow stream with a second flow stream containing a mixture of the ion to be sensed and a second non-interfering tag ion in a substantially fixed ratio. A pair of ion-sensing electrodes responsive, respectively, to the ionic species of interest and the tag ion are used to detect the activity of the species at a location in the merged stream. The difference between the measured potentials of the two ionic species in the merged stream is a constant ratio which is unaffected by fluctuations in the rate at which the two flow streams are mixed.