You can filter mass peaks from a chromatogram during import.
To do this:
- File > Import Image
- Select the desired chromatogram with the file chooser
- In the import dialog, select the General tab
- In the Multi-Spectral Filter section, check Range Limit
- Type the desired range, for example: 0-43,45-70,72-400 (This will filter out m/z=44,71)
To do this:
- Open a spectrum in the MS Viewer
- Select the m/z sub range (Ex. 0-43,45-70,72-400)
- Click the Open SIC button
- Make sure the SIC window is the active window
- File > Save As
- Save the image to a new location
- Open this new image (the unwanted mass peaks should be in the image)