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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 (San Jose, CA), Russo, Richard E. (Berkeley, CA), Koppenaal, David W. (Richland, WA), Barinaga, Charles J. (Richland, WA), Carado, Anthony J. (Richland, WA)
15/ 359,969
November 23, 2016
GOVERNMENT SUPPORT CLAUSE [0002] This invention was made with government support under grant #DE-AC02-05CH11231 awarded by the Department of Energy and grant #DE-AC06-76RL01830 awarded by the Department of Energy. The government has certain rights in the invention.