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HAPSITE ER Operating Manual
Min Target Percentage. . . . . . . . . . Displays the minimum target percentage
required for the mass peak to meet OK
criteria. If the actual percentage is below the
minimum percentage, the box will turn red.
Actual Percentage . . . . . . . . . . . . . Displays the actual measured target
percentage.
Max Target Percentage . . . . . . . . . Displays the maximum target percentage
required for the mass peak to meet OK
criteria. If the actual percentage is above the
minimum percentage, the box will turn red.
Max OK Target Percentage . . . . . . Displays the maximum percentage required
for the mass peak to meet the OK High
criteria.
Base Peak . . . . . . . . . . . . . . . . . . . . Displays the base peak, which is used to
measure the mass peak percentage.
9.4.14 Mass Calibration Status
The dark gray Mass Calibration Status table displays the status of the last Mass
Calibration. (See Figure 9-40.) If the Mass Calibration is not displayed, select
Mass Calibration from the Tune drop-down menu.
Figure 9-40 Mass Calibration Status
Mass . . . . . . . . . . . . . . . . . . . . . . . . Mass number.
Low% . . . . . . . . . . . . . . . . . . . . . . . . Minimum percentage for peak status to be
displayed as OK.
High% . . . . . . . . . . . . . . . . . . . . . . . Maximum percentage for peak status to be
displayed as OK.
Base. . . . . . . . . . . . . . . . . . . . . . . . . Reference mass for peak percentage
calculations.
Diff(mmu) . . . . . . . . . . . . . . . . . . . . Provides an adjustment to DAC value for
mass peak alignment when necessary. 100
mmu = 0.1 amu.
Peak% . . . . . . . . . . . . . . . . . . . . . . . Actual peak percentage of reference mass.
Isotope% . . . . . . . . . . . . . . . . . . . . . Percentage of the Carbon 13 isotope peak as
measured against the mass fragment.
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