Metrohm Vision Manual - Manual (Page 128)

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6. Question marks next to the sample names in newly created equation indicate that the
samples form the temporary set:
Dragging spectra to the saved equation will destroy its structure and place all existing product
spectra together with new spectra back in the temporary set. When this is done by mistake, it can be
reversed by exiting the Sample Selection program and re-entering it.
You can create a new constituent by entering a new name in the Select Constituent box. The initial
constituent values will be all zeroes.
Performing spectral data type of Sample Selection
1. Click on the equation containing the temporary set.
2. Choose Select/Apply Math to start sample selection.