Title:
PHOTOIONIZATION ION SOURCE HAVING COMPACT STRUCTURE, AND PHOTOIONIZATION TIME-OF-FLIGHT MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2023/083082
Kind Code:
A1
Abstract:
The present invention belongs to the technical field of analytical instruments, and specifically relates to a photoionization ion source having a compact structure, and a photoionization time-of-flight mass spectrometer. The photoionization ion source of the present invention comprises an ultraviolet lamp and an electrode group which are sequentially arranged, an insulating sealing ring being disposed between adjacent electrodes in the electrode group, through hole structures are arranged in the middle of electrodes in the electrode group, and the insulating sealing ring and the electrodes in the electrode group jointly form a columnar cavity; the electrodes in the electrode group comprise a drift head electrode, at least one drift electrode, and a drift tail electrode, which are arranged in sequence, a capillary tube for sample injection being disposed at a side surface of the drift head electrode, and the ultraviolet lamp being disposed at one end of a columnar cavity near the drift head electrode. The photoionization ion source is used in a time-of-flight mass spectrometer, and can effectively simplify the structure of the instrument, reduce the size of the instrument, reduce energy consumption of the instrument, and facilitate popularization and use of the time-of-flight mass spectrometer, having good application prospects.
Inventors:
YANG YANTING (CN)
Application Number:
PCT/CN2022/129337
Publication Date:
May 19, 2023
Filing Date:
November 02, 2022
Export Citation:
Assignee:
CHENGDU ALIBEN SCIENCE & TECH CO LTD (CN)
International Classes:
H01J49/16; H01J49/06; H01J49/24; H01J49/40
Foreign References:
| CN109904056A | 2019-06-18 | |||
| JP2005025946A | 2005-01-27 | |||
| CN112908829A | 2021-06-04 | |||
| CN102479661A | 2012-05-30 | |||
| CN114093748A | 2022-02-25 |
Attorney, Agent or Firm:
GAOYUNG INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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