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. 14, 1989
Filed:
Mar. 13, 1987
Applicant:
Inventor:
Himangshu R Bhattacharjee, Randolph, NJ (US);
Assignee:
Allied-Signal Inc., Morris Township, Morris County, NJ (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
436 74 ; 422 56 ; 422 57 ; 422 61 ; 436 79 ; 436164 ; 436169 ;
Abstract
A kit and method for detecting lithium ions in a sample. The kit includes a lithium ion selective color indicator which is a leuco precursor of an arylmethane dye dispersed in a matrix. In use, the color indicator is contacted with a sample and any color change therein is monitored. A color change in the indicator indicates the presence of lithium ions in the sample.