Dielectric barrier discharge ionization detector

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10739309
APP PUB NO 20180067082A1
SERIAL NO

15698331

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Abstract

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A dielectric barrier discharge ionization detector capable of achieving a high signal-to-noise ratio is provided. The detector includes: a discharging section for generating plasma from argon-containing gas by electric discharge; and a charge-collecting section for ionizing a component in a sample gas by an effect of the plasma and for detecting ion current formed by the ionized component. The discharging section includes a cylindrical dielectric tube having a high-voltage electrode connected to AC power source as well as upstream-side and downstream-side ground electrodes and formed on its outer circumferential wall. A semiconductor film is formed on the inner circumferential surface of the tube. The upstream-side and downstream-side ground electrodes are respectively made longer than the initiation distances for a creeping discharge between the high-voltage electrode and a tube-line tip member as well as between the high-voltage electrode and the charge-collecting section.

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Patent Owner(s)

Patent OwnerAddress
SHIMADZU CORPORATIONKYOTO-SHI KYOTO 604-8511
OSAKA UNIVERSITY1-1 YAMADAOKA SUITA-SHI OSAKA 5650871 ?5650871

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitano, Katsuhisa Osaka, JP 38 410
Shinada, Kei Kyoto, JP 30 171

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