10 G7200-90210 (Rev. A) MassHunter Workstation Quick Start Guide
Reference: For 7700x
The recommended tuning parameter values for 7700x are shown below.
*1 Generally, set the QP Bias at least 2 to 3V higher than OctP Bias.
*2 High-Energy Collision mode allows for enhanced reduction of interference under the Helium mode.
However, as it will also result in reduced low-mass sensitivity, it should be used in accordance with
the purpose of the analysis.
Table 2 Recommended Values for 7700x (When Using a MicroMist Nebulizer)
Parameter No Gas Mode Cell Gas Mode High Energy Collision Mode
*2
Recommended
Value
Recommended
Range
Recommended
Value
Recommended
Range
Recommended
Value
Recommended
Range
RF Power [W] 1550 Fixed 1550 Fixed 1550 Fixed
Smpl Depth [mm] 8.0 Fixed 8.0 Fixed 8.0 Fixed
Carrier Gas [L/min] 1.05 1.01 to 1.11 1.05 1.01 to 1.11 1.05 1.01 to 1.11
Makeup Gas [L/min] 0 0 to 1.11 0 0 to 1.11 0 0 to 1.11
Dilution Gas [L/min] 0 Fixed 0 Fixed 0 Fixed
Neb Pump [rps] 0.1 Fixed 0.1 Fixed 0.1 Fixed
S/C Temp [degC] 2 Fixed 2 Fixed 2 Fixed
He or H
2
gas [ml/min] 0 Fixed 3.6 (He)
4.0 (H
2
)
3.2 to 4.0 (He)
3.6 to 4.4 (H
2
)
10 (He) 7 to 10 (He)
Extract 1 [V] 0 Fixed 0 Fixed 0 Fixed
Extract 2 [V] -180 -200 to -160 -180 -200 to -160 -180 -200 to -160
Omega Bias [V] -80 -110 to -70 -80 -110 to -70 -80 -110 to -70
Omega Lens [V] 10 7 to 12 10 7 to 12 10 7 to 12
Cell Entrance [V] -30 -40 to -30 -40 -40 to -30 -130 -150 to -110
Cell Exit [V] -50 -60 to -40 -60 -60 to -40 -150 Fixed
Deflect [V] 10 8 to 15 0 -5 to 4 -80 -90 to-70
Plate Bias [V] -40 -50 to -30 -60 Fixed -150 Fixed
OctP RF [V] 180 150 to 200 180 150 to 200 190 180 to 200
OctP Bias [V]
*1
-8 -10 to -6 -18 Fixed -100 Fixed
QP Bias [V]
*1
-3 -7 to -3 -15 Fixed -96 -97 to -90
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