AB Sciex 4000 QTRAP Посібник з експлуатації обладнання - Сторінка 7
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enough axial velocity to overcome the exit lens barrier and are axially ejected
towards the mass spectrometer ion detector. Full spectra data can be acquired
from the ions collected in Q3 by rapidly scanning the main RF voltage.
Features of the System
The unique scan modes of both configurations can be linked to provide more
and higher quality data than either instrument alone. For example, a precursor
ion scan in transmission mode can be used as a survey scan in order to target
specific ions to be used in an EPI scan (in LIT mode). Conversion between the two
modes of operation is rapid, since it involves only the addition or removal of the
resolving DC voltages.
The 4000 QTRAP system offers the following benefits over a standard triple
quadrupole and a traditional 3-D ion trap mass spectrometer:
Parts of the Instrument
This section contains diagrams of the instrument and general descriptions of its
components.
Figure 1-1 Front view of the instrument
Document Number: D1000092200 B
•
The proven quadrupole quantitation capabilities of the API 4000™
instrument with additional scan types: Enhanced MS, Enhanced Multiply
Charged, Enhanced Product Ion, Enhanced Resolution, MS/MS/MS, and
Time Delayed Fragmentation.
•
Higher sensitivity in all RF/DC scan modes.
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Scanning to a mass range of m/z 3–2800 quadrupole mode, 50–2800 LIT
mode.
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Enhanced resolution at reduced scan speeds.
Source Exhaust
Vacuum Chamber
Detector
Hardware Guide
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