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Means of introducing an analyte into liquid sampling atmospheric pressure glow discharge

United States Patent

January 3, 2017
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
A liquid sampling, atmospheric pressure, glow discharge (LS-APGD) device as well as systems that incorporate the device and methods for using the device and systems are described. The LS-APGD includes a hollow capillary for delivering an electrolyte solution to a glow discharge space. The device also includes a counter electrode in the form of a second hollow capillary that can deliver the analyte into the glow discharge space. A voltage across the electrolyte solution and the counter electrode creates the microplasma within the glow discharge space that interacts with the analyte to move it to a higher energy state (vaporization, excitation, and/or ionization of the analyte).
Marcus; R. Kenneth (Clemson, SC), Quarles, Jr.; Charles Derrick (Clemson, SC), Russo; Richard E. (Berkeley, CA), Koppenaal; David W. (Richland, WA), Barinaga; Charles J. (Richland, WA), Carado; Anthony J. (Richland, WA)
Clemson University (Clemson, SC), The Regents of the University of California (Oakland, CA), Battelle Memorial Institute on behalf of Pacific Northwest National Laboratory (Richland, WA)
14/ 171,981
February 4, 2014
GOVERNMENT SUPPORT CLAUSE This invention was made with government support under contract no. DE-AC02-05CH11231 and contract no. DE-AC06-76RLO-1830 awarded by the United States Department of Energy. The government has certain rights in the invention.