Question: monoisotopic mass determination and charge state assignment of a full MS1 spectrum
1
gravatar for pisiposo84
9 months ago by
pisiposo8450
pisiposo8450 wrote:

Does anyone know a tool (better and R package) that can do monoisotopic mass extraction and charge state assignment of the entire raw MS1 spectrum?

From a given MS1 spectrum I would like to retrieve the following info: -monoisotopic m/z of all detected peptides -intensity of the monoisotopic masses -isotope envelope of each monoisotopic mass (i.e. m/z and intensity) -charge state

Most of the available tools (like msconvert) only work on the precursors selected for fragmentation, not for all the m/z reported in the MS1 spectrum. Also, MALDIquant::monoisotopicPeaks only return the monoisotopic m/z and its intensity, but not charge state nor isotope envelope information.

ADD COMMENTlink modified 7 weeks ago by Woa2.7k • written 9 months ago by pisiposo8450

Have you found some tools for the charge detection in the MS1 spectrum now?

ADD REPLYlink written 7 weeks ago by leonchang19950
0
gravatar for Woa
7 weeks ago by
Woa2.7k
United States
Woa2.7k wrote:

Can you manage with python? If so, this one looks good and I guess its actively developed:

https://mobiusklein.github.io/ms_deisotope/docs/_build/html/

ADD COMMENTlink written 7 weeks ago by Woa2.7k
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