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:
Jul. 12, 1988
Filed:
Feb. 12, 1987
Applicant:
Inventors:
John N Driscoll, Wellesley Hills, MA (US);
Edwards S Atwood, Natick, MA (US);
Assignee:
HNU Systems, Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
204 / ; 204415 ;
Abstract
A method of detecting hydrogen cyanide using an electrochemical cell is disclosed. The cell comprises an electrolyte which is initially free of any salt capable of dissociating to form cyanide ions, a pH detection electrode and a reference electrode. A membrane permeable to hydrogen cyanide gas is used and the potential developed between the electrode is monitored as a measure of hydrogen gas partial pressure.