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Means of Introducing an Analyte into Liquid Sampling Atmospheric Pressure Glow Discharge

United States Patent Application

View the Complete Application 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), Pacific Northwest National Laboratory (Richland WA), Lawrence Berkeley National Laboratory (Berkeley CA)
14/ 171,981
February 4, 2014
GOVERNMENT SUPPORT CLAUSE [0002] This invention was made with government support under contract no. DE-ACO2-05CH11231 and contract no. DE-AC06-76RLO-1830 awarded by the United States Department of Energy. The government has certain rights in the invention.