Charge remote fragmentation
Obsolete Template
| ASMS TERMS AND DEFINITIONS POSTER ENTRY |
| Charge remote fragmentation |
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Decompositions that occur without any obvious involvement of the charge site. These reactions may be of closed-shell species and have thermal analogies or be of radical ions and be radical-site induced. One requirement is a stable charge site, which is usually closed shell, stable, and localized (e.g., -COO-, -COOLi2+, -OHNa+, -SO3-, etc.). The reactions are particularly useful in locating functional groups in aliphatic chains such as in fatty acids, surfactants, lipids, steroids but also occur for peptides and other biomolecules. Many charge-remote fragmentations require high-energy collisional activation but others have low-energy requirements and are seen at metastable-ion decompostions or under low-energy collisional conditions. |
| ASMS Terms and Definitions Poster |
