
Chapter 6 Acquiring Mass Spectra
6-54 PerSeptive Biosystems
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4. If Save All or Accumulate All is selected for accumulation,
the system moves to the next search pattern position.
For all other accumulation conditions, the system
repeats step 1 through step 3 until one of the following
is true:
• If the Acceptance criteria selected are met (the
signal is in range, the minimum Signal-to-Noise
ratio and resolution are achieved).
• The Number of Spectra to Acquire are acquired.
• The difference between the maximum and
minimum laser intensity is smaller than the laser
step size specified in Automatic Control dialog
box, and the laser can no longer be adjusted.
5. The system saves data files based on the Spectrum
Accumulation conditions selected. Acceptance criteria
must be met for all collection modes except Save All and
Accumulate All. See Section 6.6.6, Process that Occurs
when Accumulating Spectra from Multiple Search Pattern
Positions, for a description of the files saved in each
Spectrum Accumulation condition.
6. If an accumulation condition that uses Acceptance Criteria
is selected, and Acceptance Criteria are met, the system
begins a new acquisition from the current search
pattern position.
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