This makes a molecular ion, also called a special muonic molecule.

These can help us in making assignments and can tell us about the vibrations of molecular ions.

A typical CI spectrum has an easily identifiable molecular ion.

Identification of the molecular ion can be difficult.

Peaks with mass less than the molecular ion are the result of fragmentation of the molecule.

The noble gases-including helium-can form stable molecular ions in the gas phase.

It works by sensing the molecular ions of specific mobilities (time-of-flight), with software to help analysis.

Under normal operation, the ion species produced by the Penning source are over 90% molecular ions.

The H ion is the most prevalent molecular ion in interstellar space.

Alkanes have a high ionization energy, and the molecular ion is usually weak.