20
Figure 10. Calibration peak selection
You can adjust the peak height where necessary (see Section 3.5). Then use the
+ point
to calibration
command (see the button on the toolbar or in the
Edit
menu) to add the peak
height and relevant concentration data to the calibration chart. Repeat the operation for all
sample spectra. Calibration charts are plotted individually for each peak and saved in the
GRAD folder as text. You can open them for viewing as any ordinary spectrum. The chart is
approximated with a polynomial (with its degree set in the
Other
tab of the
Program settings
)
that is used for calculating concentration for that peak. Consequently, if a peak has graph, a
relevant concentration will show up near the peak height.
Creating and editing libraries
As noted above, spectrum libraries are used for searching and identifying samples with
the most matching curves. The system provides for creating and supplementing your own
libraries. To create a library, use the command of the same name or the button on the
File
panel. In the window, you can only specify the library name and the folder where it will be
stored (Fig. 11). By default, this is the LIB folder in the program operating folder.
Figure 11. New library settings
The library file name is the same as the library name. If you enable the
Add to list
option,
your new library will immediately open and appear in the search library list.
