Skip to Content
Find More Like This
Return to Search

Portable sample preparation and analysis system for micron and sub-micron particle characterization using light scattering and absorption spectroscopy

United States Patent

July 26, 2011
View the Complete Patent at the US Patent & Trademark Office
Los Alamos National Laboratory - Visit the Technology Transfer Division Website
There is provided a method and device for remote sampling, preparation and optical interrogation of a sample using light scattering and light absorption methods. The portable device is a filtration-based device that removes interfering background particle material from the sample matrix by segregating or filtering the chosen analyte from the sample solution or matrix while allowing the interfering background particles to be pumped out of the device. The segregated analyte is then suspended in a diluent for analysis. The device is capable of calculating an initial concentration of the analyte, as well as diluting the analyte such that reliable optical measurements can be made. Suitable analytes include cells, microorganisms, bioparticles, pathogens and diseases. Sample matrixes include biological fluids such as blood and urine, as well as environmental samples including waste water.
Stark; Peter C. (Los Alamos, NM), Zurek; Eduardo (Barranquilla, CO), Wheat; Jeffrey V. (Fort Walton Beach, FL), Dunbar; John M. (Santa Fe, NM), Olivares; Jose A. (Los Alamos, NM), Garcia-Rubio; Luis H. (Temple Terrace, FL), Ward; Michael D. (Los Alamos, NM)
Los Alamos National Security, LLC (Los Alamos, NM)
11/ 877,136
October 23, 2007
STATEMENT REGARDING FEDERAL RIGHTS This invention was made with government support under Contract No. DE-AC52-06NA25396 awarded by the U.S. Department of Energy. The government has certain rights in the invention.