INFICON HAPSITE Smart Plus Chemical Identification System - Manual (Page 402)

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HAPSITE Smart Plus Operating Manual
Writing a quantitative method still begins with Method Editor, but certain buttons will
not be available until the library is created. All the settings described in
section
11.9.1, Setting Up a Qualitative Search, on page 11-36 still apply to the creation of
a quantitative method. In addition two more options become active, The Library
Search Parameters button and the Library Actions window, see
Figure 11-36 .
Figure 11-36 Library Search Parameters Button
Clicking the Library Search Parameters button opens the window shown in Figure
11-37 . The center section refers to the AMDIS parameters and is exactly the same
as described in Figure 11-28 on page 11-37 .
Figure 11-37 Library Search Parameters Window
The Peak Search section is comprised of all the elements that define a peak in the
chromatogram.
Search Window . . . . . . . . . . . . . . . This value indicates the time window allowed
for a peak to appear. 30 seconds indicates
that the acceptable window for a peak is 15
seconds on either side of the expected
retention time.
Window Expand Factor . . . . . . . . . This value has a default of 0.05. This value is
multiplied by the run time and then added to
the search window time. The search window
is then expanded by the time calculated.