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

Abstract

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.

Inventors:

Koppenaal, David W.; Zhu, Ying; Hoegg, Edward D.; Marcus, R. Kenneth; Anderson, Gordon A.; Anderson, Chris; Williams, Tyler

Issue Date:

Tue Jun 21 00:00:00 EDT 2022

Research Org.:

Pacific Northwest National Laboratory (PNNL), Richland, WA (United States); Clemson Univ., SC (United States); GAA Custom Engineering LLC, Benton City, WA (United States)

Sponsoring Org.:

USDOE; Defense Threat Reduction Agency (DTRA)

OSTI Identifier:

1893059

Patent Number(s):

11366066

Application Number:

16/600,363

Assignee:

Battelle Memorial Institute (Richland, WA); Clemson University Research Foundation (Clemson, SC); GAA Custom Engineering LLC (Benton City, WA)

Patent Classifications (CPCs):

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

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G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

G01N21/67 - using electric arcs or discharges
G01N27/62 - by investigating the ionisation of gases
G01N27/68 - using electric discharge to ionise a gas
G01N30/7233 - {interfaced to liquid or superfluid chromatograph
G01N30/726 - {by electrical or glow discharge}

H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01J - ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

H01J37/32018 - {Glow discharge}
H01J37/32045 - {Circuits specially adapted for controlling the glow discharge}
H01J37/32266 - {Means for controlling power transmitted to the plasma}
H01J47/1261 - {Counters}
H01J47/1266 - {Multi-wire counters}
H01J49/105 - {using high-frequency excitation, e.g. microwave excitation, Inductively Coupled Plasma [ICP]}
H01J49/168 - {field ionisation, e.g. corona discharge
H01J61/542 - {and an auxiliary electrode inside the vessel}

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DOE Contract Number:  

AC05-76RL01830; HDTRA1-14-1-0010

Resource Type:

Patent

Resource Relation:

Patent File Date: 10/11/2019

Country of Publication:

United States

Language:

English