Processing agilent open-lab GC/MS data on Openchrom

[RobMesman]

I'm trying to process my GC/MS data with OpenChrom but somehow I'm unable to get to the single ion masses.
The data (gas analysis) was recorded on an Agilent GC/MS (Porapak Q 80/10 column, with TCD and a split to a MS and a FID detector) with their Openlab software.
It seems as if OpenChrom doesn't recognize the *.dx to contain GC/MS data, upon opening the file all I get is a master chromatogram [CSD] and Referenced Chromatogram [CSD] and while I'm able to select and intergrate peaks I haven't found any way to extract the mass data.
Is there a step I'm missing?

[Mailaender]

Hi Rob, can you share a file that does not work? CSD is the OpenChrom term for FID.

[RobMesman]

thanks!, that makes some sense. I expected the referenced chromatogram to be the TCD signal.
Here is a results file from a 20ul calibration gas injection (zipped, otherwise I could not upload it)
20250731 124004 099 cal_20ul_3.zip

the gas (helium) should contain the following compounds:
GAS ppm Retention Time (min)
N2 10300 0.50 - 0.75
O2 10200 0.50 - 0.75
CH4 10500 0.80 - 1.00
CO2 10400 1.20 - 1.70
N2O 500 1.65 - 2.00

[eselmeister]

@RobMesman Thanks for the uploaded OpenLab file. Have a look at the location of your *.dx file. Beside the *.dx file, there are one or two files named the same, but with the extension MSPeak.bin, MSScan.bin or similar. If you could also provide the *.bin files, I will show you how to load the GC-MS data.

[RobMesman]

Thanks! here are the files combined in a zip:
20250731 124004 099 cal_20ul_3.MMssPeak+MSScan.zip
Are these files normally generated during acquisition or are they created during data analysis on with the OpenLab software?

[eselmeister]

Thanks. Do you expect that your chromatogram looks like this?

[RobMesman]

Yes, the calibration gas should give a peak at 0.6min for the combined TCD signal (at least I think it is the tcd signal) for nitrogen and oxygen, followed by a small peak for Methane at 0.9 min and a two stronger peaks for C02 (1.5min) and N20 (1.9min).
For these particular measurements we don't do anything with the FID signal.

[RobMesman]

so how do I get there? so far, if I load the data I don't get much further than this:

[eselmeister]

@RobMesman I need to fix the OpenLab converter to also support GC-MS data.

[RobMesman]

Ah! Ok, thanks in advance for the effort!

[eselmeister]

@RobMesman It will be fixed with the next version. Next release is on Friday, 10th of October as this Friday is public holiday.