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.

Date of Patent:
Jul. 30, 1996

Filed:

Sep. 22, 1993
Applicant:
Inventors:

Iqbal W Siddigi, Brea, CA (US);

James C Sternberg, Fullerton, CA (US);

Assignee:

Beckman Instruments, Inc., Fullerton, CA (US);

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436 56 ; 436164 ; 436172 ; 422 52 ; 422 8505 ; 422 8206 ; 422 8208 ;
Abstract

A method for detecting an analyte, in an aqueous solution at a physiological pH, by reductive or oxidative/reductive electrochemical luminescence methodologies is disclosed. The method proceeds by labelling the analyte with a transition metal complex, followed by inducing the transition metal label to luminescence by application of a suitable electrical potential to a solution containing the label and the analyte. The transition metal complex can be a tris-ruthenium(bipyridine) complex. A hydroxylamine and/or a halogen-containing moiety can be used to enhance both reductive and/or oxidative electrochemical luminescence of the transition metal complex. The transition metal chelate can be used as a label for the detection of picomolar concentrations of an analyte of interest, such as an analyte present in a sample of a physiological fluid.


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