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Near real time vapor detection and enhancement using aerosol adsorption

United States Patent

August 3, 1999
View the Complete Patent at the US Patent & Trademark Office
Argonne National Laboratory - Visit the Technology Development and Commercialization Website
A vapor sample detection method where the vapor sample contains vapor and ambient air and surrounding natural background particles. The vapor sample detection method includes the steps of generating a supply of aerosol that have a particular effective median particle size, mixing the aerosol with the vapor sample forming aerosol and adsorbed vapor suspended in an air stream, impacting the suspended aerosol and adsorbed vapor upon a reflecting element, alternatively directing infrared light to the impacted aerosol and adsorbed vapor, detecting and analyzing the alternatively directed infrared light in essentially real time using a spectrometer and a microcomputer and identifying the vapor sample.
Novick; Vincent J. (Downers Grove, IL), Johnson; Stanley A. (Countryside, IL)
The United States of America as represented by the United States (Washington, DC)
08/ 941,209
September 30, 1997
CONTRACTUAL ORIGIN OF THE INVENTION The United States Government has rights in this invention under Contract No. W-31-109-ENG-38 between the U.S. Department of Energy and the University of Chicago acting through Argonne National Laboratory.