Metrohm NIRS XDS Process Analyzer – MicroBundle - Manual (Page 76)

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The correction spectrum represents the
amount of spectral correction required
to provide a virtual 100% reflectance
reference at each data point. (The
correction is plotted in violet.)
This is calculated in Vision. The
difference between the sample fiber
and the Certified 99% Reflectance
Reference, plus the stored spectrum on
the diskette or Mini-CD, permits
calculation of the true response of the
sample fiber, on a scale of absolute
absorbance.
A final spectrum (green when plotted
on-screen) is plotted to verify that the
corrected spectrum produces the same
results as the Certified 99%
Reflectance Reference.
Click “Close Report” to continue. The
correction is automatically
downloaded, and is saved in the
Diagnostic Data Base.
The correction will be applied in real
time to all spectra taken with a DCM
where “Reference Standardization” is
checked. This applies to all projects,
using any DCM with Reference
Standardization selected.
When finished, this box is shown with the final correction
spectrum. The correction is downloaded to the instrument
for the proper channel, and will be applied whenever a
“Reference Standardized” DCM is used.
Note that the DCM must be created with “Reference
Standardization” checked in the “Project Options” box. If
the DCM was created prior to selection of “Reference
Standardization”, then it was checked, the DCM will not
apply Reference Standardization.
Click “Print Report” to print the corrected spectrum. Select
“landscape mode”. Click “Close Report” to continue.