Tune > Manual Tune > MS Section (LC/MS)

What do you want to do?

Manually tune the MS (LC/MS)

Prepare for manual tuning (LC/MS)

User Interface

Tune file

The name of the current tune file. You can use the icons in the Tune Toolbar to open and save a tune file.

Fast scan

Whether or not the current tune file is a Fast scan tune file.

Ion source

The source that is configured with the current instrument.

Diverter

Whether the stream from the LC is going into Waste or into the MS.

Calibrant on

Whether or not the calibrant is flowing.

Polarity

Positive or Negative.

Scan type

Scan, SIM, or Profile.

MS Parameters

Resolution

Unit. This value changes the target peak width. For a single quadrupole, the only value is Unit (0.7 FWHM). You cannot select a different Resolution in this section.

Width gain

Width gain affects the width of the mass peaks. See Width gain (LC/MS).

Width offset

Width offset affects the width of the mass peaks. See Width offset (LC/MS).

Axis gain

See Axis Gain (LC/MS).

Axis offset

See Axis Offset (LC/MS).

Adjust Mass Peaks button

When you click this button, the software adjusts the following values: Width gain, Width offset, Axis gain, and Axis offset.

MS DC (V)

See MS DC (LC/MS).

Scan from

The lower value of the Scan range. See Scan range (LC/MS).

to

The upper value of the Scan range. See Scan range (LC/MS).

by

The step size. See Scan range (LC/MS).

SIM mass

The mass to use if you acquire data in Tune and set the Scan type to SIM.

Profile masses

The table of selected masses for manual tuning. If you mark the check box in the Enabled column, then the Mass (m/z) is used in manual tuning operations. You can also specify the Window in Daltons (u).

Ramp Parameters

See Ramp Section (LC/MS).