Using a DAD. I want one chromatogram that displays all peaks from a range of wavelengths.
I am not familiar with Empower software, but I believe OpenLab CDS 2.2. has the feature you are looking for. In your processing method if you go to Extraction>Chromatogram and check under the UV tab, there should be options to Extract maximum wavelength chromatogram and to Extract total wavelength chromatogram. For both of these option, you have the ability to restrict the extraction to a specific wavelength range.
The next time you process data with this method, the chromatograms should be automatically extracted as specified in the method.
Hopefully this helps.
Retrieving data ...