Table 1.
data acq. logic | tech. rep.b | resolving power (at 200 m/z) | scan type | scan range | AGC target | microscans | max injection time |
---|---|---|---|---|---|---|---|
Top-2 hi/hid | all 3 | 120 000 | MS1 | 500–2000 m/z | 1.00 × 1006 | 4 | 50 ms |
AUTOPILOT hi/hid | #1 | 120 000 | MS1 and random SIM | 500–2000 m/z MS1, 25 m/z SIMc | 1e6 MS1, 5e4 SIM | 4 MS1, 8 SIM | 50 ms |
#2 | 120 000 | SIM march | 4 × 50 m/z, 700–900 m/z | 5.00 × 1004 | 8 | 400 ms | |
#3 | 120 000 | SIM march | 8 × 25 m/z, 700–900 m/z | 5.00 × 1004 | 8 | ||
Top-2 med/hie | all 3 | 3750 | MS1 | 500–2000 m/z | 1.00 × 1006 | 25 | 50 ms |
Note the study design and use of technical replicates.
Technical replicates, where the same sample was subjected three times to LC–MS.
SIM, selected ion monitoring.
hi/hi refers to use of high-resolution data for both MS1 and MS2 scans.
med/hi (short hand for “medium/high”) refers to use of nonisotopically resolved data at a “medium” level of resolution for MS1 and high-resolution data for fragment ions recorded in a MS2 scan.