Please look at the following below links which may help you in your analysis:

http://www.rsc.org/suppdata/c9/gc/c9gc03743h/c9gc03743h1.pdf

https://gassite.com/assets/uploads/2018/03/AN231WA0917A-CO-CO2-A4.pdf

Thanks

Dear Isam Elgailani,

Thank you so much.

I will read the material.

Regards,

Gustavo

Check https://assets.thermofisher.com/TFS-Assets/CMD/Application-Notes/AN-10440-GC-Impurities-Breathing-Oxygen-PDD-AN10440-EN.pdf

Also check https://gassite.com/assets/uploads/2018/02/72fd1081748c80fb94505d48ee77519d.pdf

Kindly check on this

https://www.govinfo.gov/content/pkg/GOVPUB-C13-96a7b81fa85a94c851b14cfc58fb969e/pdf/GOVPUB-C13-96a7b81fa85a94c851b14cfc58fb969e.pdf

The following weblinks maybe useful to you.

https://kb.unitylabservices.com/kb/article?articleId=348249&Source=article&cid=12822&islink=1

https://www.pragolab.cz/documents/TRACE1300_brochure_v2.0.pdf

Good luck.