Title:
四重極質量分析装置
Document Type and Number:
Japanese Patent JP7107378
Kind Code:
B2
Abstract:
A quadrupole mass spectrometer includes: a quadrupole mass filter including a pre-rod; an ionization chamber; and an ion optical system that guides ions generated in the ionization chamber to the pre-rod of the quadrupole mass filter, wherein: a potential of an exit side electrode of the ion optical system is lower than a potential of the ionization chamber and a potential of the pre-rod of the quadrupole mass filter; and there is no structure that has a higher potential than the exit side electrode and decelerates the ions between the exit side electrode and the pre-rod.
Inventors:
Katsutoshi Nishiguchi
Application Number:
JP2020540952A
Publication Date:
July 27, 2022
Filing Date:
September 06, 2018
Export Citation:
Assignee:
SHIMADZU CORPORATION
International Classes:
H01J49/42; H01J49/00; H01J49/04; H01J49/06; H01J49/14
Domestic Patent References:
| JP7245080A | ||||
| JP2006278024A |
Foreign References:
| WO2017094146A1 | ||||
| WO2016027833A1 | ||||
| WO2018055707A1 |
Attorney, Agent or Firm:
Tsutomu Sugitani
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