I want to analyse some additives in the offset ink where i use acetronitrile to extract them. When i inject it to the GCMS, i do get a peak both in the blank and the sample. Is there a method to remove detecting blank peaks in my sample chromatograph ? What is the procedure that i should use in the mass hunter software to do that?
Hello Jeewani,
the magic word is Solvent Delay. You can tell the mass spectrometer via software that it does not register the solvent peak. For this period the MS does not scan. This function is also useful to increase the lifetime of your filaments. Otherwise they will burn out relatively quickly.
Regards
Markus
While Marcus is correct about the solvent peak, if you have other peaks in your chromatogram that are present in the blank you can do a blank subtraction. I'm sure you can find it in Mass Hunter since it is in all of the previous revs of Agilent software. You would simply subtract the blank chromatogram from the sample and then used the blank corrected chromatogram. This can be quite useful if you have solvent impurities that you would like to eliminate.
Make sure the Blank Subtract add-in in installed under Quantitative analysis install
why don't you rerefer the software user guide?
You can find it the link below.
https://www.agilent.com/cs/library/usermanuals/Public/G3336-90018_Qual_Familiarization.pdf
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