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Trace detection of analytes using portable raman systems

United States Patent

November 24, 2015
View the Complete Patent at the US Patent & Trademark Office
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Apparatuses and methods for in situ detection of a trace amount of an analyte are disclosed herein. In a general embodiment, the present disclosure provides a surface-enhanced Raman spectroscopy (SERS) insert including a passageway therethrough, where the passageway has a SERS surface positioned therein. The SERS surface is configured to adsorb molecules of an analyte of interest. A concentrated sample is caused to flow over the SERS surface. The SERS insert is then provided to a portable Raman spectroscopy system, where it is analyzed for the analyte of interest.
Alam; M. Kathleen (Cedar Crest, NM), Hotchkiss; Peter J. (Albuquerque, NM), Martin; Laura E. (Edgewood, NM), Jones; David Alexander (Sandia Park, NM)
Sandia Corporation (Albuquerque, NM)
14/ 469,933
August 27, 2014
STATEMENT OF GOVERNMENTAL INTEREST This invention was developed under Contract DE-AC04-94AL85000 between Sandia Corporation and the U.S. Department of Energy. The U.S. Government has certain rights in this invention.