2
Scan Parameters
Scan Mass-To-Charge Ratio Ranges
Thermo Scientific Orbitrap Fusion Series Hardware Manual 13
Scan Mass-To-Charge Ratio Ranges
The Orbitrap Fusion Series MS has two mass-to-charge ratio (m/z) range modes:
•Normal: m/z 50–2000
•High: m/z 100–4000 (ion trap detector type) or m/z 100–6000 (Orbitrap detector type)
with the precursor ion selection up to m/z 4000
Resolutions for the Orbitrap Detector
When you specify the Orbitrap mass analyzer as the detector type, you can choose from seven
resolution levels:
•15000
•30000
•50000
•60000
• 120 000
• 240 000
• 500 000
Table 5. Ion trap scan rates and peak widths
Scan rate Parameter Value
Tu r b o
a
a
The isotopes are partially unresolved. The actual observed peak widths are isotope-abundant dependent.
Scan rate (Da/sec): 125 000
Peak width (FWHM
b
):
b
Defined as the peak width at half height.
3
Rapid (default) Scan rate (Da/sec): 66 666
Peak width (FWHM): 0.6
Normal Scan rate (Da/sec): 33 333
Peak width (FWHM): 0.5
Enhanced Scan rate (Da/sec): 10 000
Peak width (FWHM): 0.35
Zoom Scan rate (Da/sec): 2222
Peak width (FWHM): 0.3