Width gain affects the width of the mass peaks by adjusting the ratio of DC voltage to RF voltage on the quadrupole mass filter. A higher value gives narrower peaks. Width gain affects peaks at high masses more than those at low masses.
| Minimum | Maximum | Default |
|---|---|---|
| -2047 | 2047 | 0 |
You can click Adjust Mass Peaks on the Tune > MS Section to automatically adjust the Width gain and Width offset to achieve the target peak width (+/- 0.05 u). Manual adjustment is a more reliable way of finding the optimum gain and offset values.
| In Fast scan mode, manual adjustment of peak width is not recommended. Use Autotune. |
See Also