Title:
MASS SPECTROMETER, ION OPTICAL DEVICE, AND METHOD FOR ION MANIPULATION IN MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2018/020712
Kind Code:
A1
Abstract:
The present invention provides a mass spectrometer, an ion optical device, and a method for ion manipulation in a mass spectrometer. The mass spectrometer comprises a mass analyzer; and further comprises an ion guiding device, including two electrode arrays that are positioned in parallel with each other, each of the electrode arrays consisting of at least two ring electrodes that are concentrically disposed or at least three linear electrode assemblies that have a radial distribution; and a power supply means, configured to apply a voltage on at least a part of the ring electrodes, to form a radio-frequency electric field and a DC electric field. By means of the radio-frequency electric field and the DC electric field, ions are allowed to be stored in a region between the two arrays, and controlled to be sequentially released along a radial direction according to a preset mass-to-charge ratio requirement, and then exit the ion guiding device and enter the mass analyzer for mass analysis. Through the technical solution of the present invention, a high ion utilization efficiency and a large ion storage capacity, as well as the miniaturization of instrument, are achieved.
Inventors:
ZHANG XIAOQIANG (CN)
SUN WENJIAN (CN)
SUN WENJIAN (CN)
Application Number:
PCT/JP2017/004612
Publication Date:
February 01, 2018
Filing Date:
February 08, 2017
Export Citation:
Assignee:
SHIMADZU CORP (JP)
International Classes:
H01J49/42; H01J49/06
Domestic Patent References:
| WO2015189539A1 | 2015-12-17 | |||
| WO2007125354A2 | 2007-11-08 |
Foreign References:
| US20140299761A1 | 2014-10-09 | |||
| US20080210859A1 | 2008-09-04 | |||
| US20100243886A1 | 2010-09-30 | |||
| US6770872B2 | 2004-08-03 | |||
| US7208726B2 | 2007-04-24 | |||
| US7714279B2 | 2010-05-11 | |||
| US7208728B2 | 2007-04-24 | |||
| US7329862B2 | 2008-02-12 | |||
| US7456388B2 | 2008-11-25 | |||
| US7888635B2 | 2011-02-15 |
Other References:
DANIEL E. AUSTIN ET AL: "Halo Ion Trap Mass Spectrometer", ANALYTICAL CHEMISTRY, vol. 79, no. 7, 1 April 2007 (2007-04-01), pages 2927 - 2932, XP055030346, ISSN: 0003-2700, DOI: 10.1021/ac062155g
Attorney, Agent or Firm:
KYOTO INTERNATIONAL PATENT LAW OFFICE (JP)
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