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Chemical specific adsorption aerogel for sample collection

United States Patent Application

20030022389
A1
View the Complete Application at the US Patent & Trademark Office
Lawrence Livermore National Laboratory - Visit the Industrial Partnerships Office Website
The use of treated and/or impregnated aerogels, for chemical specific adsorption, as a sample collection media. The chemically specific aerogel provides an adsorbate as a sampling medium for airborne applications such as stack emissions, clean room environments, personnel dosimetry, etc. The aerogel is treated and/or impregnated to adsorb specific chemistries. The aerogel, after adsorption of a specific chemistry may be heated to release the collected species, or may be dissolved to release the collected species, whereafter the collected species may be analyzed in a GC/MS. The aerogels may be used in the both low and high-volume collectors. This process allows quicker, and therefore cheaper, analysis of airborne substances.
Miller, Fred S. (Bethel Island, CA), Andresen, Brian D. (Livermore, CA)
The Regents of the University of California
09/ 919,173
July 30, 2001
[0001] The United States Government has rights in this invention pursuant to Contract No. W-7405-ENG-48 between the United States Department of Energy and the University of California for the operation of Lawrence Livermore National Laboratory.