Linked scan at constant E2/V

DRAFT DEFINITION
Linked scan at constant E2/V
A linked scan at constant E2/V may be performed on a sector instrument that incorporates at least one electric sector plus one magnetic sector. The electric sector field (E) and the accelerating voltage (V) are scanned simultaneously, so as to maintain the ratio E2/V at a constant value, equal to the value of this ratio which transmits the main beam of ions through a electric sector. The magnetic sector field is set at a fixed value such that main-beam ions of a predetermined m/z are transmitted by the magnetic; these pre-selected main-fragmentation reactions observed occur in a field-free region traversed before the two sectors scanned in this way. This term should not be used without prior explanation of the meaning of E and V. The term "E2/V linked scan" 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. Recommended terms | Full list of terms

Linked scan at constant E₂/V

Orange Book Entry

This may be performed with a sector instrument incorporating at least one electric sector plus one magnetic sector. The electric sector field, E, and the accelerating voltage, V, are scanned simultaneously so as to maintain E 2/V ratio at constant value equal to the value of this ratio that transmits the main beam ions through the electric sector. The magnetic sector field is set at a fixed value such that main-beam ions of a predetermined mass/charge ratio are transmitted by the magnetic sector; these preselected main-beam ions are the precursor ions whose fragment ion spectrum is required. The fragmentation reactions thus observed occur in a field-free region traversed before the two sectors scanned in this way. The term 'E 2/V linked scan????????????????????????? is not recommmended.