The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 14, 2023
Filed:
Jun. 08, 2021
Shimadzu Corporation, Kyoto, JP;
Kei Shinada, Kyoto, JP;
SHIMADZU CORPORATION, Kyoto, JP;
Abstract
A discharge ionization detector includes: a gas passage () through which an electric-discharge gas is to be passed; a plasma generation electrode (-) configured to generate an electric discharge in the gas passage so as to generate plasma from the electric-discharge gas; a sample-gas introduction section () through which a sample gas is introduced into the gas passage; a collection electrode () configured to collect ions generated from a sample with the plasma; a bias electrode () located between the plasma generation electrode and the collection electrode, and configured to create an electric field for guiding the charged particles to the collection electrode; and a DC power unit () capable of independently controlling a voltage applied to the bias electrode and a voltage applied to the collection voltage. A peak-shape abnormality in a signal output can be suppressed by appropriately adjusting the voltages.