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IPN 074-397-P1G
HAPSITE Smart Operating Manual
Low Mass . . . . . . . . . . . . . . . . . . . . The lowest mass in the range of masses
being considered. For most cases involving
the HAPSITE this value is 45.
Deconvolution Window . . . . . . . . . The number of adjacent peaks subtracted
from the deconvoluted peak.
Minimum Match Factor . . . . . . . . . The threshold net match factor value for an
identification to be reported. Values at or
above 80 are good matches, 70-79 are fair
and less than 70 is poor. For most cases a
match factor of 80 is the minimum that should
be used if identification rather than detection
is desired.
High Mass . . . . . . . . . . . . . . . . . . . . The highest mass in the range being
considered. The maximum value for the
HAPSITE is 300.
Sensitivity . . . . . . . . . . . . . . . . . . . 1-30, used in model peak perception ranges:
30, 15, 10, 3, 1 As the value for this
parameter increases, increasingly noisy and
broad peaks are sought at the expense of
analysis time and increased risk of false
positives. An increase in the sensitivity will
extract broader peaks, resulting in an
increase in the extraction of smaller and
noisier peaks.
Resolution. . . . . . . . . . . . . . . . . . . . High/Medium/Low, Default Medium: As the
level of resolution goes up, the program
separates peaks that are closer together.
If Analyze Region is selected, see Figure 11-29, the AMDIS is directed to only
search in the scan range selected. This is for specialized use, and does not need
to be utilized for normal usage. The default of Analyze Region off (i.e., unchecked)
will search the entire range specified by Low Mass and High Mass.
Figure 11-29 Analyze Region
When setting up the AMDIS library for qualitative analysis the HAPSITE.msl is the
default library for the system. See Figure 11-30.
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