Unified name for added or lost "fragments" in Mass Spec

Discussions about GC-MS, LC-MS, LC-FTIR, and other "coupled" analytical techniques.

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There are different ways an analyte can react in Mass Spec. It can:
- Receive a positively charged ion like H+
- Receive a negatively charged ion like H-
- Loose a neutral fragment like BOC
- Receive a nuetral fragment
- And it can be fragmented into 2 ions

I'd like to create a table with all of these included. But I don't know how to name such table. It would contain something like:

Code: Select all

Change  | Effect on Analyte charge
[M+H]   | +1
[M+Na]  | +1
[M-BOC] | 0

Some people call them adducts (which doesn't seem to make sense when it's removed), others - fragments (which doesn't make sense when it's added). Is there some common term that would unite these?
Software Engineer at elsci.io (my contact: stanislav.bashkyrtsev@elsci.io)
sbashkyrtsev wrote:
Some people call them adducts (which doesn't seem to make sense when it's removed), others - fragments (which doesn't make sense when it's added). Is there some common term that would unite these?


Species?

If this table is just for internal or personal use, that would be a good broad, general term.
"Have you tried explaining it to the rubber duck?"
Naah, that's too generic :) Seems like there's no common term and I'd just have to list them as Adducts, Fragments, Ions.
Software Engineer at elsci.io (my contact: stanislav.bashkyrtsev@elsci.io)
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