Graphically extract an EIC from an MS spectrum

Prerequisites

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

• You use TIC SCAN data.

• The MS spectrum is displayed in Separate mode.

1. In the MS Spectrum window, select Activate/Deactivate EIC Extraction.

In the graph, a line appears to select the m/z value or range.

The icon indicates that graphical EIC extraction is activated.

2. To extract an EIC for a single m/z value, simply click the required value.

Depending on the settings in the MS Spectrum Properties dialog, you may need to click to confirm.



3. To extract an EIC for the largest mass ion in a specific m/z range, click and drag the cursor over the required range.

When asked for confirmation, select At maxima in range, and click to confirm.



4. To extract an EIC over a range of m/z values, click and drag the cursor over the required range.

When asked for confirmation, select Over selected m/z range, and click to confirm.

The corresponding chromatogram is extracted and added to the list of Extracted Chromatograms in the injection tree.