
Chapter 6 Acquiring Mass Spectra
6-56 PerSeptive Biosystems
6
6.6.6 Process that Occurs
when Accumulating Spectra from
Multiple Search Pattern Positions
NOTE: These processes occurs when you acquire using a
.BIC file that has User Automated Sample Positioning
enabled.
You can obtain a single spectrum from multiple positions
within a single sample position by specifying a search pattern.
To do so, enable the Automatic Control mode in Instrument
Settings control page and select one of the Spectrum
Accumulation conditions described below.
For information on the Automatic Laser/Sample
Positioning/Spectrum Accumulation function, see:
• Section 5.2.3, Automatic Control Dialog Box
• Section 6.6, Acquiring in Automatic Mode from the
Instrument Control Panel
For a description of a search pattern file, see Section 6.6.4,
Search Pattern Files.
Two options are available for accumulating spectra from
multiple search pattern positions:
• Accumulate all—Averages the acquired spectra
regardless of their quality. A single spectrum is created.
See Section 5.2.3, Automatic Control Dialog Box, for
more information.
• Accumulate all passing—Evaluates the acquired
spectra against the Acceptance Criteria specified, then
averages only passing spectra. See Section 5.2.3,
Automatic Control Dialog Box, for more information.
NOTE: If no Acceptance Criteria are specified, all
spectra are averaged
.
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