Manually extract a selected ion chromatogram from the TIC SIM signal

Prerequisites

• To be able to carry out the procedure as described, you need the privileges Data Processing > Do manual chromatogram extraction and Processing Method > Edit chromatogram extraction parameters. Privileges are configured in the Control Panel.

• If the project enforces method approval, the method status must be Generic. For details, see Method approval.

1. In the Injection Tree, right-click the relevant injection, then select Extract Chromatograms... from the context menu.

Alternatively, right-click the relevant peak in the TIC SIM signal, then select Extract Chromatograms... from the context menu.

The Extract Chromatograms dialog opens.

2. Under Signal type, select SIM.



3. From the SIM Ion drop-down list, select the required ion.

4. To automatically reprocess the injection after extracting the chromatograms, select the corresponding check box.

Peaks in the extracted ion chromatograms will be integrated during reprocessing.

5. Enter the parameters for Polarity, Ionization, Fragmentor, and Gain as required. The available values depend on the acquired data. In addition, the values are filtered based on your selection; for example, if you select a positive polarity, then only ionization and fragmentor values for positive polarization are listed.

6. Click OK.

The SIM ion is extracted for the selected injection. It will be added to the list of signals for the injection, and can be shown or hidden the same way as other signals.



7. Save the data.

Extracted chromatograms are saved together with the data.