Manual Re-Integration
Defining an Averaged Baseline

By means of two points entered in the chromatogram, you can define a baseline for the entire chromatogram (= averaged baseline):

How To

• In the chromatogram, right-click to select an area at the beginning of the chromatogram. The first Baseline Point shall be in the middle of this area.

• Select Set Averaged Baseline Start on the context menu.

This sets the first baseline point. The x-value is the middle of the selected area while the y-value is the averaged value of the signal values weighted by the data rate. This first value is not marked, as it is not sufficient for setting the baseline. A second point is required as well.

 Note:

If you exit Chromeleon without having entered the second point, the first point is deleted.

Enter the second point as follows:

• In the chromatogram, right-click and select an area somewhere at the end of the chromatogram. The second baseline point shall be in the middle of this area.

• Select Set Averaged Baseline End on the context menu.

This action sets the second baseline point. The new baseline is drawn through both points, which are marked by a red cross.

You can modify the averaged baseline later in two ways:

1. Select a new baseline point, which then replaces one of the former ones.

2. Use the baseline tool on the Integration Toolbar, see How to …: Working with Chromatograms  Modifying the Baseline Manually.