Invention Grant
- Patent Title: Substantially simultaneous resonance-enhanced multiphoton and laser desorption ionization for single particle mass spectroscopy
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Application No.: US17053506Application Date: 2019-04-08
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Publication No.: US11923182B2Publication Date: 2024-03-05
- Inventor: Ralf Zimmermann , Johannes Passig , Sven Ehlert
- Applicant: Helmholtz Zentrum München Deutsches Forschungszentrum Für Gesundheit Und Umwelt (GMBH) , Photonion GMBH
- Applicant Address: DE Neuherberg
- Assignee: Helmholtz Zentrum München Deutsches Forschungszentrum Für Gesundheit Und Umwelt (GMBH)
- Current Assignee: Helmholtz Zentrum München Deutsches Forschungszentrum Für Gesundheit Und Umwelt (GMBH)
- Current Assignee Address: DE Neuherberg
- Agency: Dorsey & Whitney LLP
- Priority: EP 171596 2018.05.09
- International Application: PCT/EP2019/058780 2019.04.08
- International Announcement: WO2019/214885A 2019.11.14
- Date entered country: 2020-11-06
- Main IPC: H01J49/00
- IPC: H01J49/00 ; H01J49/02 ; H01J49/04 ; H01J49/16

Abstract:
Devices and methods for mass spectroscopic analysis of particles are disclosed herein. An example device includes: a first irradiation unit configured to irradiate a particle with electromagnetic radiation to cause components of the particle to detach from the particle. The example device further includes a second irradiation unit configured to irradiate substantially simultaneously i) at least a part of the detached components, and optionally a residual core of the particle, with a first beam of electromagnetic radiation the first beam of electromagnetic radiation exhibiting a first intensity, and ii) at least a part of the residual core, of the particle with a second beam of electromagnetic radiation. The second beam of electromagnetic radiation exhibiting a second intensity, which is preferably larger than the first intensity. The example device further includes a mass spectrometer comprising an ion source region, a first detection channel, and optionally a second detection channel.
Public/Granted literature
- US20210134574A1 DEVICE AND METHOD FOR MASS SPECTROSCOPIC ANALYSIS OF PARTICLES Public/Granted day:2021-05-06
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