Method for remote detection of trace contaminants

United States Patent

6,617,591
September 9, 2003
View the Complete Patent at the US Patent & Trademark Office
A method for remote detection of trace contaminants in a target area comprises applying sensor particles that preconcentrate the trace contaminant to the target area and detecting the contaminant-sensitive fluorescence from the sensor particles. The sensor particles can have contaminant-sensitive and contaminant-insensitive fluorescent compounds to enable the determination of the amount of trace contaminant present in the target are by relative comparison of the emission of the fluorescent compounds by a local or remote fluorescence detector. The method can be used to remotely detect buried minefields.
Simonson; Robert J. (Cedar Crest, NM), Hance; Bradley G. (Albuquerque, NM)
Sandia Corporation (Albuquerque, NM)
10/004,921
December 3, 2001
250/459.1 ; 436/172;
G01N 21/64 (20060101); G01N 021/64 (); G01N 021/75 ();
250/459.1,302,458.1 436/166,172,56
STATEMENT OF GOVERNMENT INTEREST This invention was made with Government support under contract no. DE-AC04-94AL85000 awarded by the U.S. Department of Energy to Sandia Corporation. The Government has certain rights in the invention.