Table 2. Ionization modes and instrumental conditions in the first pumping stage of the (a) LCQ Deca XP ion-trap, (b) LCMS-2020 quadrupole and (c) AccuTOF time-of-flight mass spectrometers.
| Ionization mode | (a) LCQ ion-trap | (b) LCMS-2020 quadrupole | (c) AccuTOF time-of-flight | |||
|---|---|---|---|---|---|---|
| ESI-positive/negative ion modes | ESI-positive ion mode | ESI-positive ion mode | ||||
| Instrumental conditions | Capillary (orifice) temperature | 275°C | Capillary (orifice) temperature | 200°C | Orifice 1 temperature | 30°C |
| Capillary (orifice) voltage | 20 V | Capillary (orifice) voltage | 0 V | Orifice 1 voltage | 40–60 V | |
| Skimmer voltage | 0 V | Desolvation line temperature | 250°C | Orifice 2 voltage | 5 V | |
| Tube lens voltage | 50 V | Desolvation line voltage | 0 V | Ring lens voltage | 10 V | |