Displaying and Using UV Spectra
Displaying Peak Spectra

• In the chromatogram, select the peak of which you want to display the spectrum. If the associated raw data is available, thumbnail spectra of the peak are displayed in the chromatogram.

• Select Show Spectra on the View menu or click

• Select Decorations on the context menu of the Spectra window. On the Peak Spectra tab, determine from which peak height spectra are displayed.

Depending on the settings, up to five spectra of the same peak can be displayed in different colors. Normally, the spectra are extracted at 10 and 50% peak height from the leading and the trailing peak edges and at the run time of the peak. The representation of the spectrum is normalized. If the spectra largely match, this can be an indication for good peak purity.