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Mass spectrometry and b-ions

by Lindsayyyy
Tags: bions, mass, spectrometry
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Lindsayyyy
#1
Jan10-14, 06:04 AM
P: 208
Hi everybody,

I'm new to the subject and I'm having a question. I have a MS of peptide fragments. I just learned about a,b,c ions etc. In my diagram it shows only b ions. I don't understand the following:
On one peak it says b5 -H2O+1

I understand it this way: It's the mass of the b5 ion plus the mass of one h2o molecule (~18u). Is that correct? Or in other words: What does the +1 at the end mean after the H2O?

If I'm in the wrong forum for this I'm sorry.

Thanks for your help in advance.

Regards lindsayyyy
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