I have generated a mass spectrum for paracetamol after extraction from a co-proxamol tablet and analysis by GC-MS.
Mass Spectrum shows peaks at m/z values 43, 80, 109, 151
Clearly, 151 is the parent ion and 109 is the large fragment formed when the CO-NH bond is cleaved.
Can anyone explain where the peak at m/z 80 comes from as I really don't understand where it could arise from... could it be to do with the conditions under which the sample was run (i.e. GC-MS and not simple MS)
Any thoughts are welcome
Thanks in Advance,