Metrohm Vision Manual - Manual (Page 42)

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• The resulting spectrum can be saved by clicking the Save icon and typing a new name. In
order to delete the result of the operation, click Configure/Spectral Manipulation/Clear.
3.5.6 Computing Standard Deviation Spectra
The standard deviation spectrum of a group of spectra can be computed and saved. In order to
compute the standard deviation:
• Select the group of spectra in Data Acquisition. The selected spectra are displayed. When
computing the standard deviation of a whole product, select the product name.
• Click on Edit/Compute Standard Deviation. The window that opens shows available
pretreatments (all pretreatments for which tabs in spectral display window are created are
available).
• Select pretreatment and click on OK.
• Select the product and new sample name in order to save it.
Important: Only spectra from a single product can be used. The minimum number of spectra for
calculation is 3.