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. 10, 1996
Filed:
Aug. 10, 1995
Applicant:
Inventors:
John S Benco, Holliston, MA (US);
Joseph S Foos, Needham, MA (US);
Assignee:
Ciba Corning Diagnostics Corp., Medfield, MA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
2057825 ; 205783 ; 2057855 ; 205792 ; 204418 ; 204416 ; 204415 ; 204406 ; 204403 ; 204433 ; 204435 ; 422 681 ; 422 8201 ; 422 8202 ; 422 8203 ; 422 8204 ;
Abstract
A planar bicarbonate sensor has been discovered that has a dried residue internal electrolyte layer comprising a bicarbonate source and a halide salt of potassium, lithium, or sodium. The flow-through sensor is capable of providing bicarbonate level of a liquid sample, and when coupled with a pH sensor, may be used to determine the partial carbon dioxide level in the sample. The sensor provides many commercially desirable characteristics including an adequate lifetime, good response time, and good stability upon first usage.