Precursor ion
From Mass Spec Terms
| DRAFT DEFINITION |
| Precursor ion |
|---|
| An ion that reacts to form particular product ions. The reaction could be unimolecular dissociation, an ion/molecule reaction, or involve simply isomerization (change in connectivity) or change in the number of charges. The older gender-specific term parent ion ion is not recommended. |
| Considered between 2004 and 2006 but not included in the 2006 PAC submission |
| This is an unofficial draft definition presented for information and comment. |
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See additional comments on the Precursor ion discussion page (archive of discussion between 2004 and 2006) |
Related Terms
Orange Book Entry
Synonymous with Parent Ion. Instead of the use of parent ion and daughter ion terms the precursor and product ion terms are preferred respectively.
