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:
May. 24, 1983
Filed:
Dec. 10, 1980
Applicant:
Inventor:
Clarence S Wentzel, Parlin, NJ (US);
Assignee:
Engelhard Minerals & Chemicals Corporation, Menlo Park, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
73 231 ; 422 89 ; 436140 ;
Abstract
The paraffin, olefin and aromatic compounds in a gasoline containing hydrocarbons up to about C.sub.13 can be analyzed and identified by gas liquid chromatography. The aromatics are reversibly absorbed from the gasoline sample by N,N-bis(2-cyanoethyl) formamide while the olefins are irreversibly absorbed by sulfuric acid. Following separation by compound type, each group is resolved and identified by gas liquid chromatography.