EIC or XIC traces from GC-MS data?

[Jharynuk]

Hello, I am desperately trying to figure out how to plot an extracted ion chromatogram from some GC-MS data (for example ion 91 to look at alkyl benzenes). I've been banging around through the menus, help, internet for a couple of hours and cannot find anything. There must be a way, but cannot figure it out. Can anyone help?

[LouisPM]

To show single ion chromatogram, open the 'Chromatograms' overlay by going to toolbar:Overlay and selecting 'Show Overlay (Chromatogram)'.
Then, in the newly opened chromatogram window, change the setting "TIC" to "SIC" and specify the ion(s) [m/z] of interest in the field next to it; that is, if you are working with nominal masses. In case you were working with exact masses, change "TIC" to "HIC" and indicate the accuracy.
See also Chemclipse issue #427.

[Mailaender]

Try Scan Mass Spectrum Filter - Ion Remover and set it to Ions: 91 and Mode: Exclude, which means it will exclude all except 91. It has the benefit that you can further process extracted ion chromatogram.