Thermonicolet Omnic Software User's Guide 6.1 (PDF) - Charles E ...

5. Specify the spectral regions to include in the comparison by clicking the
Search Regions tab.
If you want the entire spectral range of the library to be included, select Use
Full Library Range and go to the next step.
To include only spectral regions you specify, select Use Spectral Regions.
Specify the first spectral region you want to include. You can do this
graphically or by typing region limits in the table in the lower-left corner of
the tab. To make it easier to specify regions, you can use the view finder to
expand the spectral display. You can also click the Full Scale button to
display the spectrum full scale at any time.
• To specify the region in the spectral display pane, point to where you want
the region to start, press and hold down the mouse button, move the pointer
where you want the region to end, and then release the mouse button. The
specified region is shaded and bordered by vertical lines. The limits of the
region appear above the pane and in the table in the lower-left corner of the
tab. You can change the region limits by dragging the triangular handles on
the vertical lines that border the region.
• To specify the region using the table, click the cell below Start and type
the desired starting limit of the region. Click the cell below End and type
the desired ending limit. You can press Enter to enter a value you typed.
The entered values are reflected by the size and location of the shaded
region in the pane and the readout of region limits above the pane.
After you have specified a region, choose Add. The Index number in the table
increases by one, and you can now specify the next region.
Specify the other regions you want included in the same manner.
You can view the regions you have specified by using the Back and Next
buttons to display the preceding or next region in the pane, respectively.
6. Choose OK to close the dialog box, or choose QC Compare to start the
QC comparison immediately.
The selected spectrum will be compared with the spectra in the specified
libraries. If you choose OK, you can start a QC comparison by choosing QC
Compare from the Analyze menu. Choose Cancel if you don’t want your
changes to the comparison parameters saved.
See “Performing a QC comparison” for information on QC comparisons.
Note
If you want to save your changes to the comparison parameters, save the
experiment using Experiment Setup. Each time you open the experiment, the
parameters will be set automatically. See “Using Experiment Setup” in the
“Collect” chapter for details. ▲
256 Thermo Nicolet