This happened to me last month and I still don’t totally know what to make of it.
I’ve changed my mind on this twice in the last year so take my current position lightly.
This is the sort of thing that never gets written down anywhere so I figured I’d ask.
Interested in actual experiences, and please say when you’re guessing.
VI VialMethod · · 24 found helpful
Mass spec gives you molecular weight, which confirms identity but says nothing about whether the sequence is correct. Two different peptides can share a mass.