Chromatogram

	Add Signal	Add or replaces the chromatogram signal with a new signal taken as a cut from the PDA data. For more details see the description below the menu.
	Display Peak Purity	Loads the currently selected peak (from the Chromatogram or Isoplot view) to the Peak Purity and Peak Purity Spectra views (Ctrl + D). For more details see the description below the menu.

 

Add Signal

Stores a cut of the PDA data on the selected wavelength/range of wavelengths as a signal in the current chromatogram.

PDA Data - Add Chromatogram Signal

Add

Adds the new signal with the specified name (gained as a cut at selected wavelength) to the chromatogram from which it was created.

Replace

Replaces the selected signal in the chromatogram from which it was created by a new signal gained as a cut at selected wavelength. The Replace signal is not allowed for originally acquired signals, only new signals derived from spectra can be replaced.

Wavelength

Sets the new signal wavelength.

Bandwidth

Sets the bandwidth for the new signal (how much cuts will be taken and averaged to create the new signal).

Reference

If the Use checkbox is checked, the reference signal will be used for eliminating the uneven intensity of the lamp.

Wavelength

Sets the reference signal wavelength.

Bandwidth

Sets the bandwidth for the reference signal.

Display Peak Purity

Selects the peak to be displayed in Peak Purity and Peak Purity Spectra views (Ctrl + D). When the time marker is over the desired peak in Chromatogram or Isoplot views, Display Peak Purity command loads this peak to the Peak Purity and Peak Purity Spectra views. Invoking the function when the marker is not over any peak clears the views, which then display No peak selected label.