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I am a beginner in GC / MSMS. I'm having trouble finding my analytes in full scan. All the peaks that appear do not match with NIST, and I'm using 70 eV on the ion source.
Thank you
Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.
debora.ferreira wrote:
Good afternoon everyone!
I am a beginner in GC / MSMS. I'm having trouble finding my analytes in full scan. All the peaks that appear do not match with NIST, and I'm using 70 eV on the ion source.
Thank you
James_Ball wrote:debora.ferreira wrote:
Good afternoon everyone!
I am a beginner in GC / MSMS. I'm having trouble finding my analytes in full scan. All the peaks that appear do not match with NIST, and I'm using 70 eV on the ion source.
Thank you
Are you operating in single quad mode to collect the spectra?
What instrument and software are you using?
Do you have good signal to noise ratios for the analytes peaks, much higher than 10:1?
debora.ferreira wrote:
I use an Agilent device, the software is MassHunter. The GC model is 7890B and the MS / MS is 7010B.
To collect the full scan spectra I select the single mode on quad 2 (factory recommendation). And yes, I have a good signal to noise ratio, but the peaks do not match with NIST.James_Ball wrote:debora.ferreira wrote:
Good afternoon everyone!
I am a beginner in GC / MSMS. I'm having trouble finding my analytes in full scan. All the peaks that appear do not match with NIST, and I'm using 70 eV on the ion source.
Thank you
Are you operating in single quad mode to collect the spectra?
What instrument and software are you using?
Do you have good signal to noise ratios for the analytes peaks, much higher than 10:1?
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