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. 31, 1990

Filed:

Mar. 06, 1984
Applicant:
Inventors:

Bruce N Colby, Carlsbad, CA (US);

Eugene A Burns, Solana Beach, CA (US);

Assignee:

Maxwell Laboratories, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ; G01N / ; G01N / ;
U.S. Cl.
CPC ...
422 70 ; 436126 ; 436161 ; 436175 ; 422 8202 ;
Abstract

Method and apparatus for the detection and quantitation of polychlorinated biphenyls (PCB's) utilizing sample preparation by treatment with predetermined quantities of sulfuric acid and lower alkane, in which the alkane--extracted phase is subjected to chromatographic separation of PCB components (116) and electron capture detection of the separated PCB components (118), and in which the detector response is analyzed by pattern recognition comparison (316) for determination and quantitation of PCB's presented in the sample with stored data for standard PCB mixtures.


Find Patent Forward Citations

Colby, Bruce. (1990). Automated pcb analyzer system (U.S. Patent No. 4944921). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4944921

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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