Substantially simultaneous resonance-enhanced multiphoton and laser desorption ionization for single particle mass spectroscopy
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.
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