Metrohm Vision Manual - Manual (Page 40)

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• Click on Edit/Average Samples.
• In the Save Averaged Sample dialog box, type in the group size. Vision will split spectra into
groups in the order they appear on the tree and calculate the average within each group.
• Choose the product to save the averaged spectra. You can also create a new product by
typing its name in the Product ID field. In this case Vision will guide you through the product
setup process.
• Define spectra ID. You can use the name of the first spectrum in each group, or define a
prefix, which Vision will append with a four-digit consecutive number.
• Type in an optional comment and click on OK.
Spectra for averaging have to be selected from the same product. Constituent records of the
averaged spectra and destination product have to match. If they do not match, Vision issues an error
message and aborts averaging. Automatic averaging will average spectra in the order they have been
saved in the project. Re-sorting spectra before averaging does not affect the order and results of
averaging.
3.5.5 Spectral Manipulation
Spectral manipulation allows users to do addition or subtraction of spectra, multiplication of a
spectrum by a constant, and division by a constant.
To use the function:
• Click Configure/Spectral Manipulation from the Data Acquisition mode.
• Select the desired operation. You can process raw or math treated spectra.