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

Patent ·
OSTI ID:1338053
; ; ; ; ;

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).

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-05CH11231; AC06-76RL01830
Assignee:
Battelle Memorial Institute on behalf of Pacific Northwest National Laboratory (Richland, WA)
Patent Number(s):
9,536,725
Application Number:
14/171,981
OSTI ID:
1338053
Country of Publication:
United States
Language:
English

References (16)

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Radiofrequency cavity ion source in solids mass spectrometry journal August 1975
Nebulization and analysis characteristics of a particle beam–hollow cathode glow discharge atomic emission spectrometry system journal January 1996
Pressure Dependence of the Atmospheric Electrolyte Cathode Glow Discharge Spectrum journal January 1997
Femtosecond laser ablation particle introduction to a liquid sampling-atmospheric pressure glow discharge ionization source journal January 2012
Time-of-flight mass spectrometry methods for real time analysis of individual aerosol particles journal June 1998
Analysis of Organic Compounds by Particle Beam/Hollow Cathode Atomic Emission Spectroscopy:  Determinations of Carbon and Hydrogen in Amino Acids journal September 1997
Direct solution analysis by glow discharge: electrolyte-cathode discharge spectrometry journal January 1994
Fundamental studies of electrolyte-as-cathode glow discharge-atomic emission spectrometry for the determination of trace metals in flowing water journal July 1998
Development of open-air type electrolyte-as-cathode glow discharge-atomic emission spectrometry for determination of trace metals in water journal July 2000
Particle Beam Aqueous Sample Introduction for Hollow Cathode Atomic Emission Spectroscopy journal November 1994
Studies of Analyte Particle Transport in a Particle Beam-Hollow Cathode Atomic Emission Spectrometry System journal January 1997
Glow‐discharge mass spectrometry—Technique for determining elemental composition profiles in solids journal April 1974
Aqueous sample introduction into a glow discharge device via a particle beam interface journal January 1991
Analysis of geological samples by hollow cathode plume atomic emission spectrometry journal October 1987

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