To Deconvolute a Signal or a Group of Signals:
Integrate at least one peak of the spectrum (any peak) in the traditional way and normalize the area. The estimated areas will be expressed in the same unit. You can't do it later, because there is no connection between the document window and the deconvolution window.
Select a narrow region around the peak(s) of interest. Avoid selecting pure baseline, spikes and impurities that are difficult to model, at the cost of not selecting the tails of your peaks.
Choose Simulate > Deconvolution. A new module is created. You can see the experimental spectrum in black and a series of proposed simulated peaks in green or red.
iNMR automatically determines the number of peaks. This number can be wrong because any irregularity that creates a maximum is counted as a peak. If there are too many peaks, click smooth repeatedly until the number of simulated peaks is only slightly higher than what you really need.
To remove an unwanted peak from the simulation, select it (click the peak and it will become red); then click the icon remove.
To create an additional peak, select any peak and click split: the number of peaks will increase by 1 unit. Drag the new peaks where you need: first select a peak, then drag the handle that appears at the bottom. Drag the top handle to adjust the intensity.
Click the button All, then click same %. You have told iNMR to optimize frequencies, widths and intensities of all the peaks and to simulate lorentzian line shapes.
Click FIT. To verify the accuracy of the simulation, click toggle. Now you can see the simulated spectrum in green and the difference (experimental - simulated) in red. In this visualization mode, the value of the residual error is also reported. It costs nothing to click FIT again: there are chances that the error decreases.
The area of each peak is reported into the table. If you have followed our advise to integrate a peak of the original spectrum, the values are expressed in the same unit. Otherwise, the unit is 1/100 of the initially selected area.