Linked scan at constant E2/V
| DRAFT DEFINITION |
| Linked scan at constant E2/V |
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A linked scan at constant E2/V is 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. This linked scan recordss a product ion spectrum of dissociation or other reactions occurring in a field free region (FFR) preceding the two sectors. 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. |
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.
