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INSIGHT Software
Operation
Thermo Scientific Evolution 200 Series User Guide 85
7. Click Close to close each displayed math window.
Related Topics
Smoothing Scan Data
Converting Scan Data to a Derivative
Converting Scan Data to Other Units
Adding Two Scan Spectra
Subtracting a Scan Spectrum
Ratioing Two Scan Spectra
Averaging Scan Spectra
Adding, Subtracting, Multiplying or Dividing Scan Data by a Factor
Finding Peaks in Scan Data
Finding Value Level Crossings in Scan Data
Subtracting a Scan Spectrum
Use Subtract in the Math menu to subtract a scan spectrum from another.
Y To subtract a scan spectrum
1. Choose Math (menu) > Subtract.
The selected spectrum appears in the Operand 1 pane. To use a different listed spectrum,
select it and click Add in the Operand 1 box.
The list includes only current workbook spectra. To add others:
a. Click Browse.
b. Select a folder in the left pane (use the features above it to navigate), a workbook in
the middle pane, and spectra in the upper-right pane. To select multiple spectra, hold
down Shift or Ctrl. Selected spectra appear in the lower-right pane.
c. Click OK. Each added spectrum is listed with asterisks at the beginning of its name
to indicate the data is not in the current workbook.
2. Select the spectrum to subtract and click Add in the Operand 2 box.
3. To multiply the second spectrum by a factor other than 1, drag the slider or use Factor.
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