Voyager DP-263-S Guía de usuario Pagina 290

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Chapter 5 Optimizing Instrument Settings
5-60 PerSeptive Biosystems
5
NOTE: Saturated signal in any region of the spectrum may
suppress peaks in the Mass Range of interest.
Decreasing the laser should optimize the signal (Figure 5-17).
Figure 5-17 Signal Acceptable at Lower Laser Intensity
To optimize laser intensity, continue acquiring and adjusting
the laser intensity (if necessary) until you observe:
Acceptable peaks (no saturation)
Moderate resolution
Signal-to-noise ratio of approximately 50:1
NOTE: By default, the right axis is set to Display
Relative mode, which means it updates to reflect the
intensity of the most intense peak in the currently
displayed region of the trace. You can set the right axis
to display an absolute value if desired. For more
information, see “Accessing graphic options” on
page 4-22.
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