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Table 7-1 Spectral Data
Description
Mode
The preset value is 0.1 Da. Profile data is the data generated by the mass
spectrometer and corresponds to the intensity recorded at a series of evenly
spaced discrete mass values.For example, for the mass range 100 Da to 200
Da and step size 0.1, the instrument scans from 100 Da to 200 Da in 0.1 Da
increments (for example, 100.0, 100.1, 100.2, 100.3… up to 200.0).
Profile
The preset value is 1.0 Da. Peak Hopping is a mode of operating a mass
spectrometer in which large steps (approximately 1 Da) are made. It has the
advantage of speed (fewer data steps are made) but with the loss of peak
shape information.
Peak Hopping
Parameters
The working parameters are the set of instrument parameters currently being used.
• Source and gas parameters: These parameters can change depending on the ion source used.
• Compound parameters: These parameters consist mostly of voltages in the ion path. Optimal values for
compound-dependent parameters vary depending on the compound being analyzed.
• Resolution parameters: These parameters affect the resolution and calibration.
• Detector parameters: These parameters affect the detector. The Multi-Channel Plate is the detector in a TOF
instrument and consists of four channels for ion detection. The total of the channels equals the ion intensity.
This parameter can be optimized using Instrument Optimization.
The following figure shows the location of the parameters on the ion optics path.
TripleTOF
®
5600/5600+ System
System User Guide
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RUO-IDV-05-7040-B
Operating Instructions — Acquisition Methods