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Solid phase microextraction fiber cleaning and conditioning apparatus and method

United States Patent

May 23, 2006
View the Complete Patent at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
A SPME-fiber cleaning and conditioning apparatus and method having an elongated heating chamber with first and second opposite ends. The first end is capable of insertably receiving a SPME fiber portion of a SPME device, and the second end is a fluid outlet. A heater is provided for heating the chamber and heat-treating an inserted SPME fiber. Contaminants and other particles are agitated, desorbed and purged from the inserted SPME fiber by flowing a fluid through the chamber from the first end to the second end, away from the SPME device. Additionally, turbulence may be produced in the flow at a location adjacent the first end, to enhance agitation, desorption, and purging. A holder may also be provided extending from the first end for supporting the SPME device in a substantially horizontal orientation when the SPME fiber is positioned in the chamber.
Alcaraz; Armando (Livermore, CA), Wiefel; Michael H. (Castro Valley, CA)
The Regents of the University of California (Oakland, CA)
10/ 421,582
April 22, 2003
The U.S. Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the U.S. Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.