Mass error and isobaric peaks analysis | Vahid F | 2019-09-06 08:31 | |||||||||
Hi all, I have acquired some MS/MS spectra at 120k resolution in PRM mode on QE-HF to be able to resolve small isobaric ions labeled by one 13C or 2H or 15N. Data files are imported into Skyline and I can see the MS/MS in Full Scan panel (picture attached). The issue is that due to a ~5ppm mass error, m/z that Skyline is looking at is slightly off. Is there a way to force skyline to look at the peaks and not the theoretical m/z or somehow or set a m/z offset? The attached picture illustrates the issue well. Thanks, |
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