Skip to Content
Find More Like This
Return to Search

Preconcentrator with high volume chiller for high vapor pressure particle detection

United States Patent

October 22, 2013
View the Complete Patent at the US Patent & Trademark Office
Sandia National Laboratories - Visit the Intellectual Property Management and Licensing Website
Apparatus and method for collecting particles of both high and low vapor pressure target materials entrained in a large volume sample gas stream. Large volume active cooling provides a cold air supply which is mixed with the sample gas stream to reduce the vapor pressure of the particles. In embodiments, a chiller cools air from ambient conditions to C. with the volumetric flow rate of the cold air supply being at least equal to the volumetric flow rate of the sample gas stream. In further embodiments an adsorption media is heated in at least two stages, a first of which is below a threshold temperature at which decomposition products of the high vapor pressure particle are generated.
Linker; Kevin L. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
13/ 094,615
April 26, 2011
GOVERNMENT INTERESTS Embodiments of the invention were developed under Contract No. DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The United States Government has certain rights in this invention.