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:
Sep. 13, 1983
Filed:
Jan. 14, 1980
Wayne R Matson, Ayer, MA (US);
Enviromental Sciences Associates, Inc., Bedford, MA (US);
Abstract
An electrochemical detection apparatus is provided. The apparatus comprises a flow-cell having at least one active testing electrode, at least one reference electrode, and at least one counter electrode. Each electrode comprises a liquid impervious solid body having a bore extending therethrough with the electrode active surface located in the bore. The electrodes are arranged in a stack, electrically insulated from one another with their respective bores aligned so as to define a flow channel through which liquid to be detected can be passed. In a preferred embodiment of the invention at least one of the reference electrodes is actively driven to supply a stable reference potential against which other electrochemical responses can be measured. Various electrochemical responses are achieved by varying the construction, number and arrangement of electrodes in the stack, and the potentials applied to the electrodes. The detection apparatus has particular utility for use in monitoring chromatographic eluant.