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Multi-electrode/multi-modal atmospheric pressure glow discharge plasma ionization device

Patent ·
OSTI ID:1893059
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Apparatus include an atmospheric pressure glow discharge (APGD) analyte electrode defining an analyte discharge axis into an APGD volume, and a plurality of APGD counter electrodes having respective electrical discharge ends directed to the APGD volume, wherein the APGD analyte electrode and the APGD counter electrodes are configured to produce an APGD plasma in the APGD volume with a voltage difference between the APGD analyte electrode and one or more of the AGPD counter electrodes. An electrode can be integrated into an ion inlet. Apparatus can be configured to perform auto-ignition and/or provide multi-modal operation through selectively powering electrodes. Electrode holder devices are disclosed. Related methods are disclosed.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Clemson Univ., SC (United States); GAA Custom Engineering LLC, Benton City, WA (United States)
Sponsoring Organization:
USDOE; Defense Threat Reduction Agency (DTRA)
DOE Contract Number:
AC05-76RL01830
Assignee:
Battelle Memorial Institute (Richland, WA); Clemson University Research Foundation (Clemson, SC); GAA Custom Engineering LLC (Benton City, WA)
Patent Number(s):
11,366,066
Application Number:
16/600,363
OSTI ID:
1893059
Country of Publication:
United States
Language:
English

References (11)

A multi-electrode glow discharge ionization source for atomic and molecular mass spectrometry journal January 2020
Preliminary Figures of Merit for Isotope Ratio Measurements: The Liquid Sampling-Atmospheric Pressure Glow Discharge Microplasma Ionization Source Coupled to an Orbitrap Mass Analyzer journal April 2016
Liquid Sampling-Atmospheric Pressure Glow Discharge Ionization Source for Elemental Mass Spectrometry journal April 2011
Liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasmas for diverse spectrochemical analysis applications journal January 2017
Mass spectra of diverse organic species utilizing the liquid sampling-atmospheric pressure glow discharge (LS-APGD) microplasma ionization source journal January 2016
An Atmospheric Pressure Glow Discharge Optical Emission Source for the Direct Sampling of Liquid Media journal July 2001
Concomitant ion effects on isotope ratio measurements with liquid sampling – atmospheric pressure glow discharge ion source Orbitrap mass spectrometry journal January 2018
Isotope ratio characteristics and sensitivity for uranium determinations using a liquid sampling-atmospheric pressure glow discharge ion source coupled to an Orbitrap mass analyzer journal January 2016
Coupling of an atmospheric pressure microplasma ionization source with an Orbitrap Fusion Lumos Tribrid 1M mass analyzer for ultra-high resolution isotopic analysis of uranium journal January 2019
Liquid sampling–atmospheric pressure glow discharge (LS-APGD) ionization source for elemental mass spectrometry: preliminary parametric evaluation and figures of merit journal September 2011
Determination of uranium isotope ratios using a liquid sampling atmospheric pressure glow discharge/Orbitrap mass spectrometer system journal August 2017

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