Ionisation Time-of-Flight Mass Spectrometer
features: orthogonal extraction
The main components of the ALBATROS Esi-ToF are shown below. Ions are created at atmospheric pressure by an electrospray source (e.g. ion-spray, nano-spray, micro-spray, E-spray, etc.) or any other source of positive or negative ions.gridless reflector + detector
TDC with 0.5ns
UHV vacuum system
mass resolution > 27000 (FWHM)
mass range > 200000 (m/z)
After passing highly efficient differential pumping stages symbolized by the skimmer and the apertures, the ions are injected orthogonally into the time-of-flight mass spectrometer.
In normal mode of operation the ion gate is open, and there is no gas in the collision cell. Then the ions pass unhindered into the reflector and detector of the mass analyser.
To perform MS/MS
experiments, there is a collision cell and an ion gate at the Wiley-McLaren
focus. Here a packet of ions is selected, which is broken up in the collision
gas. The reflector then analyses the fragments.
Peptides and Proteins
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