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:
Nov. 19, 1996
Filed:
Feb. 28, 1995
Applicant:
Inventor:
C-P Sherman Hsu, Basking Ridge, NJ (US);
Assignee:
Mallinckrodt Baker, Inc., Phillipsburg, NJ (US);
Primary Examiner:
Int. Cl.
CPC ...
G01N / ;
U.S. Cl.
CPC ...
436126 ; 436139 ; 436140 ; 436103 ;
Abstract
A method for enhancing detection sensitivity of suspected trace amounts of organic analytes and particularly semivolatile organic analytes extractable from a sample by an organic solvent carrier matrix and subsequent extraction and analysis of said trace organic analytes by SPME wherein the improvement comprises exchanging the organic solvent carrier matrix containing the trace organic analytes for an aqueous carrier matrix before performing SPME fiber extraction and detection of the trace organic analytes.