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:
Mar. 30, 2004
Filed:
Sep. 05, 2001
Applicant:
Inventor:
Arthur J. Friedman, Deerfield, IL (US);
Assignee:
R. E. Davis Chemical Corporation, Oak Brook, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N 3/300 ;
U.S. Cl.
CPC ...
G01N 3/300 ;
Abstract
A method for detecting the presence of flunitrazepam in a sample. Flunitrazepam contained within the sample is reduced and hydrolyzed by the addition of a hydrolyzing agent and a reducing agent. A visualizing agent is provided to combine with the reduced and hydrolyzed species corresponding to the flunitrazepam to yield a colored species providing a qualitative colorimetric indication of the presence of flunitrazepam within the sample. The invention is a rugged and dependable method suitable for use in the field.