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Author: Subject: MS of Peptide - "fingerprint"
GreenD
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[*] posted on 10-5-2013 at 15:22
MS of Peptide - "fingerprint"


In MS spectra, you can find that there is this fingerprint for proteins. We found one yesterday, but I'm confused about what it is.

We have a peak at 750 m/z and it has 5 spikes something like
749.6, 749.8, 750, 750.2, 750.4

How do I explain these 5 peaks, with differences <1?
Its obvious to me that the parent compound is 750*5, or 3750 in mass. But I don't understand this 'finger print', and can't find an easy explanation.




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